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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 | 2 |
| Number of Bits per Element | 10 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 32mA, 64mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 56-BSSOP (0.295", 7.50mm Width) |
| Supplier Device Package | 56-BSSOP (0.295", 7.50mm Width) |
The CD74FCT162827ATSM from Harris Corporation is a 2-channel non-inverting buffer from the 74FCT logic family. It operates from a 4.5V to 5.5V supply, providing 3-State outputs with 32mA source and 64mA sink drive. This device is designed for high-speed 5V bus buffering in microprocessor and memory systems. The 74FCT technology offers fast propagation delays while maintaining TTL-compatible input thresholds. The 56-pin BSSOP package is suitable for dense PCB layouts. Typical applications include memory isolation, backplane driving, and peripheral interfacing in industrial and automotive systems.
- 5V Operation (4.5V-5.5V): Directly compatible with legacy 5V logic and microprocessors.
- High Sink Current (64mA): Drives heavy loads and long bus lines with minimal signal distortion.
- 3-State Outputs: Facilitates bus sharing and prevents data corruption in multi-master systems.
- TTL-Compatible Inputs: Simplifies interfacing with older TTL logic without level shifters.
- Wide Temperature Range (-40°C to 85°C): Suitable for industrial and automotive environments.
5V Bus Buffering
Use the CD74FCT162827ATSM to buffer address and data lines in 5V microprocessor systems. Its 64mA sink capability drives large bus capacitances, ensuring reliable operation in legacy 5V designs.
Memory Subsystem Isolation
In SRAM and Flash memory interfaces, this buffer isolates the memory bus from the CPU during read/write cycles. The 3-State outputs prevent bus contention when multiple memory banks share the same data lines.
Peripheral Interface Buffering
For connecting 5V peripherals like legacy printers or industrial sensors to a microcontroller, this device provides the necessary drive strength and signal conditioning. The non-inverting function preserves data polarity.
Backplane Driver for Industrial Systems
In industrial control chassis, this buffer drives signals across a passive backplane. The high output current (32mA source/64mA sink) ensures signal integrity over long traces with multiple connector stubs.
Test Equipment Signal Distribution
In benchtop test instruments, this IC distributes clock and control signals to multiple test points. The 3-State outputs allow individual channel disabling for selective signal routing.
Automotive Infotainment Systems
For 5V logic in automotive infotainment head units, this buffer interfaces between the main processor and display driver ICs. The -40°C to 85°C temperature range meets automotive cabin requirements.
- Q: What is the logic family of the CD74FCT162827ATSM?
- A: It is from the 74FCT (Fast CMOS TTL-compatible) logic family.
- Q: What is the function of this IC?
- A: It is a 2-channel, non-inverting buffer with 3-State outputs.
- Q: How many channels does it have?
- A: It has 2 channels, each with independent enable controls.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for bus isolation and multiplexing.
- 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 56-pin BSSOP (0.295", 7.50mm Width) package.
CD74FCT162827ATSM.pdf
- Q: What is the logic family of the CD74FCT162827ATSM?
- A: It is from the 74FCT (Fast CMOS TTL-compatible) logic family.
- Q: What is the function of this IC?
- A: It is a 2-channel, non-inverting buffer with 3-State outputs.
- Q: How many channels does it have?
- A: It has 2 channels, each with independent enable controls.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for bus isolation and multiplexing.
- 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 56-pin BSSOP (0.295", 7.50mm Width) package.