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| Product attributes | Property Value |
| Manufacturer | Harris Corporation |
| Product Series | 54HC |
| 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 | 7.8mA, 7.8mA |
| Voltage - Supply | 2V ~ 6V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 20-CDIP (0.300", 7.62mm) |
| Supplier Device Package | 20-CERDIP |
The CD54HC643F is a high-speed CMOS non-inverting transceiver from the 54HC logic family. It features a single channel with 3-State outputs, enabling bidirectional data transfer between two buses. Operating over a wide 2V to 6V supply range, it provides compatibility with both 3.3V and 5V systems. The device is characterized for operation from -55°C to 125°C and is housed in a 20-pin ceramic CDIP package, making it suitable for demanding military and aerospace applications.
- Wide 2V to 6V Supply Range: Ensures compatibility with multiple logic levels, simplifying mixed-voltage system design.
- Extended Temperature Range (-55°C to 125°C): Guarantees reliable operation in harsh environments, ideal for military and aerospace use.
- 3-State Outputs: Allows bus sharing and multiplexing without signal contention, improving system flexibility.
- Ceramic CDIP Package: Provides superior thermal and mechanical stability compared to plastic packages.
High-Reliability Aerospace Systems
The wide temperature range (-55°C to 125°C) and ceramic CDIP package make the CD54HC643F ideal for aerospace and defense electronics where extreme conditions are common.
Bidirectional Bus Interfacing
As a non-inverting transceiver, it enables bidirectional data flow between two buses, simplifying board layout in microprocessor-based systems.
Mixed-Voltage Logic Systems
With a 2V to 6V supply range, it can interface between 3.3V and 5V logic domains, reducing the need for additional level-shifting components.
Industrial Control Modules
Its robust 3-State outputs allow multiple devices to share a common data bus in PLCs and industrial controllers without contention.
Military-Grade Communication Equipment
The 54HC family's proven reliability and the device's low power consumption make it suitable for portable military communication devices.
Test and Measurement Instruments
High noise immunity and balanced propagation delays ensure accurate signal integrity in precision measurement equipment.
- Q: What is the logic family of the CD54HC643F?
- A: The CD54HC643F belongs to the 54HC logic family, offering high-speed CMOS performance with the stability of standard HC devices.
- Q: What is the function of this IC?
- A: It is a non-inverting transceiver with 1 channel, designed for bidirectional asynchronous communication between two buses.
- Q: What type of output does it have?
- A: It features 3-State outputs, allowing the device to be disconnected from the bus for multiplexed or shared-line applications.
- Q: What is the operating voltage range?
- A: The CD54HC643F operates over a wide voltage range of 2V to 6V, making it compatible with various supply levels.
- Q: What is the package type?
- A: It is available in a 20-pin CDIP (0.300", 7.62mm) ceramic dual-in-line package, suitable for high-reliability applications.
- Q: What is the operating temperature range?
- A: It is rated for operation from -55°C to 125°C (TA), making it suitable for extreme environments.
CD54HC643F.pdf
- Q: What is the logic family of the CD54HC643F?
- A: The CD54HC643F belongs to the 54HC logic family, offering high-speed CMOS performance with the stability of standard HC devices.
- Q: What is the function of this IC?
- A: It is a non-inverting transceiver with 1 channel, designed for bidirectional asynchronous communication between two buses.
- Q: What type of output does it have?
- A: It features 3-State outputs, allowing the device to be disconnected from the bus for multiplexed or shared-line applications.
- Q: What is the operating voltage range?
- A: The CD54HC643F operates over a wide voltage range of 2V to 6V, making it compatible with various supply levels.
- Q: What is the package type?
- A: It is available in a 20-pin CDIP (0.300", 7.62mm) ceramic dual-in-line package, suitable for high-reliability applications.
- Q: What is the operating temperature range?
- A: It is rated for operation from -55°C to 125°C (TA), making it suitable for extreme environments.