Texas Instruments CD74ACT646M96

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Product attributes Property Value
Manufacturer Texas Instruments
Product Series 74ACT
Packaging Cut Tape (CT) | Tape & Reel (TR)
Part Status Active
Logic Type Transceiver, Non-Inverting
Number of Elements 1
Number of Bits per Element 8
Input Type -
Output Type 3-State
Current - Output High, Low 24mA, 24mA
Voltage - Supply 4.5V ~ 5.5V
Operating Temperature -55°C ~ 125°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 24-SOIC (0.295", 7.50mm Width)
Supplier Device Package 24-SOIC
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The CD74ACT646M96 is a high-speed octal bus transceiver from Texas Instruments, part of the 74ACT logic family. It provides non-inverting bidirectional data transfer between two buses with 3-state outputs for bus isolation. Operating from 4.5V to 5.5V, it delivers 24mA of drive current per channel. The device is ideal for 5V systems requiring reliable buffering, level translation, or bus interfacing in industrial, telecom, and computing applications. Its wide temperature range (-55°C to 125°C) ensures robust performance in demanding environments.

  • Wide Temperature Range (-55°C to 125°C): Suitable for extreme industrial and automotive environments.
  • 3-State Outputs: Prevents bus contention and allows multiple devices to share a common data bus.
  • High Drive Current (24mA): Ensures strong signal integrity for driving capacitive loads and long traces.
  • Non-Inverting Logic: Simplifies design by preserving signal polarity.

5V Bus Interfacing

Use the CD74ACT646M96 to interface between two 5V data buses in microprocessor systems. Its 3-state outputs prevent bus contention when multiple devices share the same lines.

Memory Data Transfer

In memory systems, this transceiver can buffer address or data lines between a controller and SRAM/DRAM. The 24mA sink/source capability ensures reliable signal integrity over short PCB traces.

Industrial Control I/O

For industrial PLCs and control modules, the -55°C to 125°C temperature range allows operation in harsh environments. The non-inverting function simplifies logic design.

Telecommunications Switching

In telecom line cards, the 74ACT family's high-speed performance supports rapid bus switching. The 3-state outputs allow multiple line cards to share a common backplane.

Test and Measurement Equipment

Use it in ATE (Automated Test Equipment) to route test signals between different instrument modules. The 5V operation matches legacy test equipment logic levels.

Q: What logic family does the CD74ACT646M96 belong to?
A: It belongs to the 74ACT logic family, known for high-speed CMOS operation with TTL-compatible inputs.
Q: What is the function of this IC?
A: It is a non-inverting octal bus transceiver with 3-state outputs, allowing bidirectional data flow between two buses.
Q: How many channels does it have?
A: It has 1 channel, which represents an 8-bit (octal) bidirectional bus.
Q: What is the output type?
A: The outputs are 3-State, enabling connection to a shared bus without contention.
Q: What is the operating voltage range?
A: It operates from 4.5V to 5.5V, making it suitable for 5V systems.
Q: What package is available?
A: It comes in a 24-SOIC (0.295", 7.50mm Width) package.
Base Product Number : CD74ACT646
24-SOIC 3-State 4.5V-5.5V 74ACT Bus Interface Industrial Logic IC Telecom Transceiver
Q: What logic family does the CD74ACT646M96 belong to?
A: It belongs to the 74ACT logic family, known for high-speed CMOS operation with TTL-compatible inputs.
Q: What is the function of this IC?
A: It is a non-inverting octal bus transceiver with 3-state outputs, allowing bidirectional data flow between two buses.
Q: How many channels does it have?
A: It has 1 channel, which represents an 8-bit (octal) bidirectional bus.
Q: What is the output type?
A: The outputs are 3-State, enabling connection to a shared bus without contention.
Q: What is the operating voltage range?
A: It operates from 4.5V to 5.5V, making it suitable for 5V systems.
Q: What package is available?
A: It comes in a 24-SOIC (0.295", 7.50mm Width) package.