CD74HCT139 Series
High Speed CMOS Logic Dual 2-to-4 Line Decoders/Demultiplexers
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
High Speed CMOS Logic Dual 2-to-4 Line Decoders/Demultiplexers
| Part | Mounting Type | Operating Temperature [Min] | Operating Temperature [Max] | Circuit | Supplier Device Package | Package / Case | Package / Case | Voltage Supply Source | Type | Current - Output High, Low | Independent Circuits | Voltage - Supply [Max] | Voltage - Supply [Min] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments CD74HCT139E | Through Hole | -55 °C | 125 °C | 1 x 2:4 | 16-PDIP | 0.3 in, 7.62 mm | 16-DIP | Single Supply | Decoder/Demultiplexer | 4 mA, 4 mA | 2 | 5.5 V | 4.5 V |
Texas Instruments CD74HCT139M | Surface Mount | -55 °C | 125 °C | 1 x 2:4 | 16-SOIC | 0.154 in, 3.9 mm Width | 16-SOIC | Single Supply | Decoder/Demultiplexer | 4 mA, 4 mA | 2 | 5.5 V | 4.5 V |
Texas Instruments CD74HCT139M96 | Surface Mount | -55 °C | 125 °C | 1 x 2:4 | 16-SOIC | 0.154 in, 3.9 mm Width | 16-SOIC | Single Supply | Decoder/Demultiplexer | 4 mA, 4 mA | 2 | 5.5 V | 4.5 V |
Key Features
• Multifunction CapabilityBinary to 1 of 4 Decoders or 1 to 4 Line DemultiplexerActive Low Mutually Exclusive OutputsFanout (Over Temperature Range)Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL LoadsBus Driver Outputs . . . . . . . . . . . . . 15 LSTTL LoadsWide Operating Temperature Range . . . -55°C to 125°CBalanced Propagation Delay and Transition TimesSignificant Power Reduction Compared to LSTTL Logic ICsHC Types2V to 6V OperationHigh Noise Immunity: NIL= 30%, NIH= 30% of VCCat VCC= 5VHCT Types4.5V to 5.5V OperationDirect LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH= 2V (Min)CMOS Input Compatibility, Il1µA at VOL, VOHMemory Decoding, Data Routing, Code ConversionMultifunction CapabilityBinary to 1 of 4 Decoders or 1 to 4 Line DemultiplexerActive Low Mutually Exclusive OutputsFanout (Over Temperature Range)Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL LoadsBus Driver Outputs . . . . . . . . . . . . . 15 LSTTL LoadsWide Operating Temperature Range . . . -55°C to 125°CBalanced Propagation Delay and Transition TimesSignificant Power Reduction Compared to LSTTL Logic ICsHC Types2V to 6V OperationHigh Noise Immunity: NIL= 30%, NIH= 30% of VCCat VCC= 5VHCT Types4.5V to 5.5V OperationDirect LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH= 2V (Min)CMOS Input Compatibility, Il1µA at VOL, VOHMemory Decoding, Data Routing, Code Conversion
Description
AI
The ’HC139 and ’HCT139 devices contain two independent binary to one of four decoders each with a single active low enable input (1E\ or 2E\). Data on the select inputs (1A0 and 1A1 or 2A0 and 2A1) cause one of the four normally high outputs to go low.
If the enable input is high all four outputs remain high. For demultiplexer operation the enable input is the data input. The enable input also functions as a chip select when these devices are cascaded. This device is functionally the same as the CD4556B and is pin compatible with it.
The outputs of these devices can drive 10 low power Schottky TTL equivalent loads. The HCT logic family is functionally as well as pin equivalent to the LS logic family.
The ’HC139 and ’HCT139 devices contain two independent binary to one of four decoders each with a single active low enable input (1E\ or 2E\). Data on the select inputs (1A0 and 1A1 or 2A0 and 2A1) cause one of the four normally high outputs to go low.
If the enable input is high all four outputs remain high. For demultiplexer operation the enable input is the data input. The enable input also functions as a chip select when these devices are cascaded. This device is functionally the same as the CD4556B and is pin compatible with it.
The outputs of these devices can drive 10 low power Schottky TTL equivalent loads. The HCT logic family is functionally as well as pin equivalent to the LS logic family.