Zenode.ai Logo
SN74LVC138ANSR - 16 SO

SN74LVC138ANSR

Active
Texas Instruments

3-LINE TO 8-LINE DECODER/DEMULTIPLEXER

Deep-Dive with AI

Search across all available documentation for this part.

SN74LVC138ANSR - 16 SO

SN74LVC138ANSR

Active
Texas Instruments

3-LINE TO 8-LINE DECODER/DEMULTIPLEXER

Technical Specifications

Parameters and characteristics commom to parts in this series

SpecificationSN74LVC138ANSR74LVC138 Series
--
Circuit1 x 3:81 x 3:8
Current - Output High, Low [custom]24 mA24 mA
Current - Output High, Low [custom]24 mA24 mA
Grade-Automotive
Independent Circuits11
Mounting TypeSurface MountSurface Mount
Operating Temperature [Max]85 °C85 - 125 °C
Operating Temperature [Min]-40 °C-55 - -40 °C
Package / Case16-SOIC (0.209", 5.30mm Width)16-SOIC, 16-TSSOP, 16-VFQFN Exposed Pad, 16-SOIC (0.209", 5.30mm Width), 16-SSOP, 16-TFSOP, 16-UFQFN, 20-VFBGA
Package / Case-0.154 - 4.4 mm Width
Package / Case-0.173 "
Package / Case-4.4 mm
Package / Case-0.209 in
Package / Case-5.3 mm
Qualification-AEC-Q100
Supplier Device Package16-SO16-SOIC, 16-TSSOP, 16-VQFN (4x3.5), 16-SO, 16-SSOP, 16-TVSOP, 16-UQFN, 20-BGA MICROSTAR JUNIOR (4x3)
Supplier Device Package-1.8
Supplier Device Package-2.6
TypeDecoder/DemultiplexerDecoder/Demultiplexer
Voltage - Supply [Max]3.6 V3.6 V
Voltage - Supply [Min]1.65 V1.65 - 2 V
Voltage Supply SourceSingle SupplySingle Supply

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

74LVC138 Series

3-Line To 8-Line decoder/Demultiplexer

PartVoltage Supply SourceMounting TypeTypeCircuitIndependent CircuitsVoltage - Supply [Max]Voltage - Supply [Min]Supplier Device PackagePackage / CasePackage / CaseCurrent - Output High, Low [custom]Current - Output High, Low [custom]Operating Temperature [Max]Operating Temperature [Min]Package / Case [x]Package / Case [x]Package / Case [y]Package / Case [y]GradeQualificationSupplier Device Package [y]Supplier Device Package [x]
Texas Instruments
SN74LVC138AQDREP
The SN74LVC138A 3-line to 8-line decoder/demultiplexer is designed for 2.7-V to 3.6-V VCCoperation. The device is designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, this decoder minimizes the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, delay times of this decoder and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low enable inputs and one active-high enable input reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment. The SN74LVC138A 3-line to 8-line decoder/demultiplexer is designed for 2.7-V to 3.6-V VCCoperation. The device is designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, this decoder minimizes the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, delay times of this decoder and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low enable inputs and one active-high enable input reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
2 V
16-SOIC
16-SOIC
0.154 in, 3.9 mm Width
24 mA
24 mA
125 °C
-40 °C
Texas Instruments
SN74LVC138ADR
The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible. The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-SOIC
16-SOIC
0.154 in, 3.9 mm Width
24 mA
24 mA
85 °C
-40 °C
Texas Instruments
SN74LVC138APWG4
Decoder/Demultiplexer 1 x 3:8 16-TSSOP
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-TSSOP
16-TSSOP
24 mA
24 mA
85 °C
-40 °C
0.173 "
4.4 mm
Texas Instruments
SN74LVC138ARGYRG4
Decoder/Demultiplexer 1 x 3:8 16-VQFN (4x3.5)
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-VQFN (4x3.5)
16-VFQFN Exposed Pad
24 mA
24 mA
85 °C
-40 °C
Texas Instruments
SN74LVC138APWE4
Decoder/Demultiplexer 1 x 3:8 16-TSSOP
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-TSSOP
16-TSSOP
24 mA
24 mA
85 °C
-40 °C
0.173 "
4.4 mm
Texas Instruments
SN74LVC138ANSRG4
Decoder/Demultiplexer 1 x 3:8 16-SO
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-SO
16-SOIC (0.209", 5.30mm Width)
24 mA
24 mA
85 °C
-40 °C
Texas Instruments
SN74LVC138APWRE4
Decoder/Demultiplexer 1 x 3:8 16-TSSOP
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-TSSOP
16-TSSOP
24 mA
24 mA
85 °C
-40 °C
0.173 "
4.4 mm
Texas Instruments
SN74LVC138ADBR
The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible. The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-SSOP
16-SSOP
24 mA
24 mA
85 °C
-40 °C
0.209 in
5.3 mm
Texas Instruments
SN74LVC138APWR
The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible. The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-TSSOP
16-TSSOP
24 mA
24 mA
85 °C
-40 °C
0.173 "
4.4 mm
Texas Instruments
SN74LVC138ADB
Decoder/Demultiplexer 1 x 3:8 16-SSOP
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-SSOP
16-SSOP
24 mA
24 mA
85 °C
-40 °C
0.209 in
5.3 mm
Texas Instruments
SN74LVC138AQDRQ1
The SN74LVC138A 3-line to 8-line decoder/demultiplexer is designed for 2.7-V to 3.6-V VCC operation. The device is designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, this decoder minimizes the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, delay times of this decoder and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low enable inputs and one active-high enable input reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment. The SN74LVC138A 3-line to 8-line decoder/demultiplexer is designed for 2.7-V to 3.6-V VCC operation. The device is designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, this decoder minimizes the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, delay times of this decoder and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low enable inputs and one active-high enable input reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
2 V
16-SOIC
16-SOIC
0.154 in, 3.9 mm Width
24 mA
24 mA
125 °C
-40 °C
Automotive
AEC-Q100
Texas Instruments
SN74LVC138ANSR
The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible. The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-SO
16-SOIC (0.209", 5.30mm Width)
24 mA
24 mA
85 °C
-40 °C
Texas Instruments
SN74LVC138ADGVR
The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible. The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-TVSOP
16-TFSOP
0.173 in, 4.4 mm
24 mA
24 mA
85 °C
-40 °C
Texas Instruments
SN74LVC138AQPWRQ1
The SN74LVC138A 3-line to 8-line decoder/demultiplexer is designed for 2.7-V to 3.6-V VCC operation. The device is designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, this decoder minimizes the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, delay times of this decoder and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low enable inputs and one active-high enable input reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment. The SN74LVC138A 3-line to 8-line decoder/demultiplexer is designed for 2.7-V to 3.6-V VCC operation. The device is designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, this decoder minimizes the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, delay times of this decoder and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low enable inputs and one active-high enable input reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
2 V
16-TSSOP
16-TSSOP
24 mA
24 mA
125 °C
-40 °C
0.173 "
4.4 mm
Automotive
AEC-Q100
Texas Instruments
SN74LVC138ARGYR
The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible. The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-VQFN (4x3.5)
16-VFQFN Exposed Pad
24 mA
24 mA
85 °C
-40 °C
Texas Instruments
SN74LVC138AD
The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible. The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-SOIC
16-SOIC
0.154 in, 3.9 mm Width
24 mA
24 mA
85 °C
-40 °C
Texas Instruments
SN74LVC138AQPWREP
The SN74LVC138A 3-line to 8-line decoder/demultiplexer is designed for 2.7-V to 3.6-V VCCoperation. The device is designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, this decoder minimizes the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, delay times of this decoder and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low enable inputs and one active-high enable input reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment. The SN74LVC138A 3-line to 8-line decoder/demultiplexer is designed for 2.7-V to 3.6-V VCCoperation. The device is designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, this decoder minimizes the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, delay times of this decoder and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low enable inputs and one active-high enable input reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
2 V
16-TSSOP
16-TSSOP
24 mA
24 mA
125 °C
-40 °C
0.173 "
4.4 mm
Texas Instruments
SN74LVC138ARSVR
The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible. The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-UQFN
16-UFQFN
24 mA
24 mA
85 °C
-40 °C
1.8
2.6
Texas Instruments
SN74LVC138ANS
Decoder/Demultiplexer 1 x 3:8 16-SO
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-SO
16-SOIC (0.209", 5.30mm Width)
24 mA
24 mA
85 °C
-40 °C
Texas Instruments
SN74LVC138AZQNR
Decoder/Demultiplexer 1 x 3:8 20-BGA MICROSTAR JUNIOR (4x3)
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
20-BGA MICROSTAR JUNIOR (4x3)
20-VFBGA
24 mA
24 mA
85 °C
-40 °C
Texas Instruments
SN74LVC138APW
The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible. The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-TSSOP
16-TSSOP
24 mA
24 mA
85 °C
-40 °C
0.173 "
4.4 mm
Texas Instruments
SN74LVC138ADT
The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible. The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
16-SOIC
16-SOIC
0.154 in, 3.9 mm Width
24 mA
24 mA
85 °C
-40 °C
Texas Instruments
SN74LVC138DBR
Texas Instruments
SN74LVC138AGQNR
Decoder/Demultiplexer 1 x 3:8 20-BGA MICROSTAR JUNIOR (4x3)
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
1.65 V
20-BGA MICROSTAR JUNIOR (4x3)
20-VFBGA
24 mA
24 mA
85 °C
-40 °C
Texas Instruments
SN74LVC138AMPWTEP
The SN74LVC138A 3-line to 8-line decoder/demultiplexer is designed for 2.7-V to 3.6-V VCCoperation. The device is designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, this decoder minimizes the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, delay times of this decoder and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low enable inputs and one active-high enable input reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment. The SN74LVC138A 3-line to 8-line decoder/demultiplexer is designed for 2.7-V to 3.6-V VCCoperation. The device is designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, this decoder minimizes the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, delay times of this decoder and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low enable inputs and one active-high enable input reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment.
Single Supply
Surface Mount
Decoder/Demultiplexer
1 x 3:8
1
3.6 V
2 V
16-TSSOP
16-TSSOP
24 mA
24 mA
125 °C
-55 °C
0.173 "
4.4 mm

Description

General part information

74LVC138 Series

The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.

The SN74LVC138A devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the effects of system decoding. When employed with high-speed memories using a fast enable circuit, delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.

Documents

Technical documentation and resources

Texas Instruments Little Logic Application Report

Application note

Low-Voltage Logic (LVC) Designer's Guide

Design guide

LOGIC Pocket Data Book (Rev. B)

User guide

Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices

Application note

CMOS Power Consumption and CPD Calculation (Rev. B)

Application note

Logic Guide (Rev. AB)

Selection guide

Use of the CMOS Unbuffered Inverter in Oscillator Circuits

Application note

STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS

More literature

Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A)

Application note

Live Insertion

Application note

Understanding Advanced Bus-Interface Products Design Guide

Application note

Design Summary for WCSP Little Logic (Rev. B)

Product overview

Input and Output Characteristics of Digital Integrated Circuits

Application note

LVC Characterization Information

Application note

Semiconductor Packing Material Electrostatic Discharge (ESD) Protection

Application note

16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B)

Application note

Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)

Application note

Signal Switch Data Book (Rev. A)

User guide

LVC and LV Low-Voltage CMOS Logic Data Book (Rev. B)

User guide

How to Select Little Logic (Rev. A)

Application note

TI IBIS File Creation, Validation, and Distribution Processes

Application note

Standard Linear & Logic for PCs, Servers & Motherboards

More literature

SN74LVC138A 3-Line to 8-Line Decoders Demultiplexers datasheet (Rev. W)

Data sheet

Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices

Application note

Selecting the Right Level Translation Solution (Rev. A)

Application note

Little Logic Guide 2018 (Rev. G)

Selection guide

Implications of Slow or Floating CMOS Inputs (Rev. E)

Application note