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| Product attributes | Property Value |
| Manufacturer | Harris Corporation |
| Product Series | |
| Packaging | Bulk | |
| 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 | 15mA, 64mA |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 24-SSOP (0.209", 5.30mm Width) |
| Supplier Device Package | 24-SSOP (0.209", 5.30mm Width) |
The CD74FCT543SM from Harris Corporation is a high-speed, non-inverting transceiver designed for 5V systems. It features 3-State outputs and can source 15mA or sink 64mA, making it ideal for bidirectional bus interfacing and memory buffering. The 74FCT logic family ensures fast propagation delays and high drive capability. It operates from 0°C to 70°C and is available in a 24-SSOP package, suitable for commercial and industrial applications.
- High-Drive 64mA Sink Current: Can drive heavy bus loads and long traces, improving signal integrity.
- 3-State Outputs: Allows multiple devices to share the same bus, simplifying system design.
- Wide 4.75V to 5.25V Supply Range: Compatible with standard 5V logic, simplifying power supply design.
- Compact 24-SSOP Package: Saves board space compared to SOIC packages.
Bidirectional Bus Interfacing
The CD74FCT543SM is perfect for connecting two data buses in a microprocessor system. Its 3-State outputs allow multiple devices to share the same bus without contention.
Memory Read/Write Buffering
Use this transceiver to buffer data between a CPU and memory. The 64mA sink capability ensures strong drive for long PCB traces.
Level Shifting (5V to 5V)
With a 4.75V to 5.25V supply, it is ideal for 5V logic systems, providing clean, buffered outputs for driving other 5V logic families.
Backplane Drivers
In telecom and networking equipment, this transceiver can drive backplane buses with its high current output, ensuring reliable data transfer over long distances.
Industrial Controls
In PLCs and industrial controllers, this IC can buffer control signals between logic boards and I/O modules, ensuring robust operation in noisy environments.
Test and Measurement Equipment
This transceiver can be used in ATE systems to route test signals between different instrument modules, thanks to its high drive and 3-State capability.
- Q: What is the function of the CD74FCT543SM?
- A: It is a non-inverting transceiver, allowing bidirectional data flow between two buses.
- Q: How many channels does it have?
- A: It has 1 channel, which typically represents an 8-bit bus in this context.
- Q: What is the output type?
- A: The output is 3-State, enabling bus sharing with other devices.
- Q: What is the operating voltage range?
- A: It operates from 4.75V to 5.25V, ideal for 5V systems.
- Q: What is the output current capability?
- A: It can source 15mA and sink 64mA, providing strong drive for bus lines.
- Q: What package is available?
- A: It comes in a 24-SSOP (0.209", 5.30mm Width) package.
CD74FCT543SM.pdf
- Q: What is the function of the CD74FCT543SM?
- A: It is a non-inverting transceiver, allowing bidirectional data flow between two buses.
- Q: How many channels does it have?
- A: It has 1 channel, which typically represents an 8-bit bus in this context.
- Q: What is the output type?
- A: The output is 3-State, enabling bus sharing with other devices.
- Q: What is the operating voltage range?
- A: It operates from 4.75V to 5.25V, ideal for 5V systems.
- Q: What is the output current capability?
- A: It can source 15mA and sink 64mA, providing strong drive for bus lines.
- Q: What package is available?
- A: It comes in a 24-SSOP (0.209", 5.30mm Width) package.