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CD74FCT244M - 20-SOIC Pkg

CD74FCT244M

Active
Texas Instruments

8-CH, 4.75-V TO 5.25-V BUFFERS WITH TTL-COMPATIBLE CMOS INPUTS AND 3-STATE OUTPUTS

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CD74FCT244M - 20-SOIC Pkg

CD74FCT244M

Active
Texas Instruments

8-CH, 4.75-V TO 5.25-V BUFFERS WITH TTL-COMPATIBLE CMOS INPUTS AND 3-STATE OUTPUTS

Technical Specifications

Parameters and characteristics commom to parts in this series

SpecificationCD74FCT244M74FCT244 Series
--
Current - Output High, Low64 mA, 15 mA15 - 64 mA
Logic TypeBuffer, Non-InvertingBuffer, Non-Inverting
Mounting TypeSurface MountSurface Mount, Through Hole
Number of Bits per Element44
Number of Elements [custom]22
Operating Temperature [Max]70 °C70 - 85 °C
Operating Temperature [Min]0 °C-40 - 0 °C
Output Type3-State3-State
Package / Case7.5 mm, 0.295 in0.154 - 7.5 mm
Package / Case20-SOIC20-SOIC, 20-SSOP, 20-DIP
Package / Case-0.3 - 3.9 mm
Package / Case-7.62 mm
Supplier Device Package20-SOIC20-SOIC, 20-SSOP, 20-PDIP, 20-SSOP/QSOP
Voltage - Supply [Max]5.25 V5.25 V
Voltage - Supply [Min]4.75 V4.75 V

Pricing

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

74FCT244 Series

8-ch, 4.75-V to 5.25-V buffers with TTL-compatible CMOS inputs and 3-state outputs

PartSupplier Device PackagePackage / CasePackage / CaseOperating Temperature [Max]Operating Temperature [Min]Output TypeNumber of Elements [custom]Current - Output High, LowNumber of Bits per ElementLogic TypeVoltage - Supply [Min]Voltage - Supply [Max]Mounting TypePackage / CasePackage / Case
Texas Instruments
CY74FCT244ATSOCT
The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
20-SOIC
0.295 in, 7.5 mm
20-SOIC
85 °C
-40 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CY74FCT244ATSOC
The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
20-SOIC
0.295 in, 7.5 mm
20-SOIC
85 °C
-40 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CY74FCT244CTSOCT
Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC
20-SOIC
0.295 in, 7.5 mm
20-SOIC
85 °C
-40 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CD74FCT244SM96
Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SSOP
20-SSOP
0.209 in, 5.3 mm
20-SSOP
70 °C
0 °C
3-State
2
15 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CY74FCT244CTSOC
The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
20-SOIC
0.295 in, 7.5 mm
20-SOIC
85 °C
-40 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CY74FCT244CTQC
Element Bit per Element Output
Texas Instruments
CY74FCT244DTSOC
The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
20-SOIC
0.295 in, 7.5 mm
20-SOIC
70 °C
0 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CY74FCT244ATQCT
The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
20-SSOP
0.154 in
20-SSOP
85 °C
-40 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
3.9 mm
Texas Instruments
CY74FCT244ATPC
The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
20-PDIP
20-DIP
85 °C
-40 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Through Hole
0.3 in
7.62 mm
Texas Instruments
CY74FCT244TSOCT
The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
20-SOIC
0.295 in, 7.5 mm
20-SOIC
85 °C
-40 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CY74FCT244TQCTG4
Buffer, Non-Inverting 2 Element 4 Bit per Element Output 20-SSOP/QSOP
20-SSOP/QSOP
0.154 in
20-SSOP
85 °C
-40 °C
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
3.9 mm
Texas Instruments
CY74FCT244DTSOCT
The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
20-SOIC
0.295 in, 7.5 mm
20-SOIC
70 °C
0 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CY74FCT244TSOC
The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
20-SOIC
0.295 in, 7.5 mm
20-SOIC
85 °C
-40 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CD74FCT244E
The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces the power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCCbounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 mA. These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces the power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCCbounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 mA. These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
20-PDIP
20-DIP
70 °C
0 °C
3-State
2
15 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Through Hole
0.3 in
7.62 mm
Texas Instruments
CY74FCT244DTQC
Element Bit per Element Output
Texas Instruments
CD74FCT244M96
The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces the power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCCbounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 mA. These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces the power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCCbounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 mA. These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
20-SOIC
0.295 in, 7.5 mm
20-SOIC
70 °C
0 °C
3-State
2
15 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CD74FCT244M
The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces the power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCCbounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 mA. These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces the power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCCbounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 mA. These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
20-SOIC
0.295 in, 7.5 mm
20-SOIC
70 °C
0 °C
3-State
2
15 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CY74FCT244DTSOCTE4
Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC
20-SOIC
0.295 in, 7.5 mm
20-SOIC
70 °C
0 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CY74FCT244DTQCT
Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SSOP
20-SSOP
0.154 in
20-SSOP
70 °C
0 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
3.9 mm
Texas Instruments
CD74FCT244ATM96
Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC
20-SOIC
0.295 in, 7.5 mm
20-SOIC
70 °C
0 °C
3-State
2
15 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CD74FCT244ATE
The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces the power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCCbounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 mA. These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces the power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCCbounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 mA. These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
20-PDIP
20-DIP
70 °C
0 °C
3-State
2
15 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Through Hole
0.3 in
7.62 mm
Texas Instruments
CY74FCT244CTQCT
The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components. These devices are fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
20-SSOP
0.154 in
20-SSOP
85 °C
-40 °C
3-State
2
32 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
3.9 mm
Texas Instruments
CD74FCT244ATM
The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces the power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCCbounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 mA. These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces the power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCCbounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 mA. These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
20-SOIC
0.295 in, 7.5 mm
20-SOIC
70 °C
0 °C
3-State
2
15 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount
Texas Instruments
CD74FCT244SM96E4
Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SSOP
20-SSOP
0.209 in, 5.3 mm
20-SSOP
70 °C
0 °C
3-State
2
15 mA, 64 mA
4
Buffer, Non-Inverting
4.75 V
5.25 V
Surface Mount

Description

General part information

74FCT244 Series

The CD74FCT244 and CD74FCT244AT are octal buffer/line drivers with 3-state outputs using a small-geometry BiCMOS technology. The output stages are a combination of bipolar and CMOS transistors that limit the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces the power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCCbounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 64 mA.

These devices are organized as two 4-bit buffers/line drivers with separate active-low output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.