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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 | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 24-SSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 24-SSOP (0.154", 3.90mm Width) |
The CD74FCT543CTQM from Harris Corporation is a single-channel non-inverting transceiver with 3-State outputs. It operates from 4.75V to 5.25V, ideal for 5V systems. With output current of 15mA (source) and 64mA (sink), it can drive heavy bus loads. The 24-pin SSOP package is compact for space-constrained designs. Typical applications include bidirectional bus interfacing and memory data transfer.
- High Sink Current (64mA): Drives capacitive loads and long bus lines effectively.
- 3-State Outputs: Allows multiple devices to share the bus without conflict.
- Wide Temperature Range (-40°C to 85°C): Suitable for industrial applications.
- Compact SSOP Package: Saves board space in dense designs.
Bidirectional Bus Interfacing
Use the CD74FCT543CTQM to connect two 5V data buses with 3-State control, allowing multiple devices to share the same lines without contention.
Memory Data Transfer
In memory systems, this transceiver can buffer data between a CPU and memory bank, providing high sink current (64mA) for long trace capacitance.
Peripheral Communication
Interface microcontrollers with peripherals like ADCs or DACs, using the 3-State outputs to disable the transceiver when not in use.
Level Shifting (5V to 5V)
While not a level shifter, it can regenerate 5V signals, improving signal integrity over long distances or multiple loads.
Industrial Control Systems
With an operating temperature range of -40°C to 85°C, it is suitable for industrial environments requiring reliable bidirectional communication.
- Q: What is the logic family of the CD74FCT543CTQM?
- A: It is from the 74FCT logic family, known for high speed and low power.
- Q: What is the function of this IC?
- A: It is a non-inverting transceiver with a single channel, allowing bidirectional data transfer.
- Q: What is the output type?
- A: It features 3-State outputs, enabling bus multiplexing and isolation.
- Q: What is the voltage range?
- A: It operates from 4.75V to 5.25V, suitable for 5V applications.
- 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-pin SSOP package (0.154" width).
CD74FCT543CTQM.pdf
- Q: What is the logic family of the CD74FCT543CTQM?
- A: It is from the 74FCT logic family, known for high speed and low power.
- Q: What is the function of this IC?
- A: It is a non-inverting transceiver with a single channel, allowing bidirectional data transfer.
- Q: What is the output type?
- A: It features 3-State outputs, enabling bus multiplexing and isolation.
- Q: What is the voltage range?
- A: It operates from 4.75V to 5.25V, suitable for 5V applications.
- 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-pin SSOP package (0.154" width).