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| Product attributes | Property Value |
| Manufacturer | Harris Corporation |
| Product Series | |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 15mA, 64mA |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 20-SSOP (0.154", 3.90mm Width) |
The CD74FCT2244CTQM from Harris Corporation is a non-inverting buffer designed for high-speed 5V systems. Operating from 4.75V to 5.25V, it provides 3-state outputs with 15mA source and 64mA sink current capability. Housed in a 20-SSOP package, it is suitable for bus interfacing, memory buffering, and peripheral driving in industrial and legacy TTL applications.
- High 64mA Sink Current: Drives heavy loads and multiple TTL inputs without additional buffers.
- 3-State Outputs: Enables bus sharing and isolation in multiplexed systems.
- TTL-Compatible Inputs: Simplifies interfacing with legacy 5V logic.
- Compact SSOP Package: Reduces PCB footprint in space-limited designs.
5V Bus Interfacing in Legacy Systems
With a 4.75V to 5.25V supply, this buffer is ideal for interfacing with legacy 5V TTL logic in industrial control panels and retro computing systems.
Memory Address Buffering
3-state outputs allow the CD74FCT2244CTQM to drive memory address lines while providing high-impedance state during bus arbitration, preventing data corruption.
Peripheral Driver for High-Current Loads
The 64mA sink capability enables driving multiple TTL loads or LEDs, making it useful for status indication in server racks.
Signal Fan-Out for Clock Distribution
Use as a buffer to distribute clock signals to multiple destinations with strong drive strength, maintaining signal integrity across the board.
Hot-Swap and Power Sequencing
3-state outputs facilitate hot-swapping of cards in backplane systems by isolating the bus during power-up or removal.
Test Equipment and Measurement
In benchtop instruments, this buffer can condition signals from sensors and switches, ensuring accurate readings in noisy lab environments.
- Q: What is the logic family of the CD74FCT2244CTQM?
- A: It belongs to the CD74FCT family, a high-speed CMOS logic series compatible with TTL levels.
- Q: What function does this IC perform?
- A: It is a non-inverting buffer with 3-state outputs, allowing bus isolation and multiplexing.
- Q: How many channels are included?
- A: It provides 1 channel (though typically octal, this variant is specified as 1 channel in the data).
- Q: What is the output type?
- A: It features 3-state outputs, enabling connection to shared buses with high-impedance state.
- Q: What is the operating voltage range?
- A: It operates at 4.75V to 5.25V, making it suitable for 5V TTL systems.
- Q: What package is available?
- A: It comes in a 20-SSOP package with a 3.90mm width, suitable for compact PCB layouts.
CD74FCT2244CTQM.pdf
- Q: What is the logic family of the CD74FCT2244CTQM?
- A: It belongs to the CD74FCT family, a high-speed CMOS logic series compatible with TTL levels.
- Q: What function does this IC perform?
- A: It is a non-inverting buffer with 3-state outputs, allowing bus isolation and multiplexing.
- Q: How many channels are included?
- A: It provides 1 channel (though typically octal, this variant is specified as 1 channel in the data).
- Q: What is the output type?
- A: It features 3-state outputs, enabling connection to shared buses with high-impedance state.
- Q: What is the operating voltage range?
- A: It operates at 4.75V to 5.25V, making it suitable for 5V TTL systems.
- Q: What package is available?
- A: It comes in a 20-SSOP package with a 3.90mm width, suitable for compact PCB layouts.