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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 54ABT |
| Packaging | | |
| 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 | 24mA, 48mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 28-CLCC |
| Supplier Device Package | 28-LCCC (11.43x11.43) |
| ROHS |  |
The SNJ54ABT543AFK is a high-speed, octal transceiver from Texas Instruments, designed for bidirectional asynchronous communication between two 5V buses. Operating from 4.5V to 5.5V, it delivers 24mA sink and 48mA source current, ensuring strong drive for demanding loads. Its 3-State outputs allow for bus sharing in multiplexed systems. Housed in a rugged 28-CLCC ceramic package, it is built for military and aerospace applications requiring extended temperature tolerance.
- High Drive Current (24mA/48mA): Ensures reliable signal transmission over long bus lines and heavy capacitive loads.
- 3-State Outputs: Allows multiple devices to share the same bus without conflict, enhancing system flexibility.
- Extended Temperature Range (-55°C to 125°C): Qualified for military and aerospace environments.
- Ceramic CLCC Package: Provides superior thermal and mechanical stability compared to plastic packages.
High-Reliability Bus Communication
In aerospace and defense systems, the SNJ54ABT543AFK provides robust bidirectional data transfer between redundant bus lines, with 3-State outputs to prevent bus contention.
5V Backplane Interfacing
Its 24mA/48mA drive capability allows it to drive long backplane traces in legacy 5V telecom equipment, maintaining signal integrity over distances.
Memory Address/Data Buffering
In high-end computing, this transceiver can buffer address and data lines between a CPU and memory banks, isolating loads and improving timing margins.
Industrial Control Logic
With a -55°C to 125°C range, it is ideal for industrial controllers operating in extreme temperatures, ensuring reliable data exchange between PLC modules.
Test and Measurement Equipment
Its 3-State outputs enable multiple instruments to share a common data bus, allowing for flexible system configuration in automated test setups.
Avionics Data Buses
The ceramic package and wide temperature range make it suitable for avionics, where vibration and temperature extremes are common, ensuring long-term reliability.
- Q: What is the logic family of the SNJ54ABT543AFK?
- A: It belongs to the 54ABT family, offering high-speed BiCMOS performance with 5V operation.
- Q: What is the function of this IC?
- A: It is a single-channel non-inverting transceiver, allowing bidirectional data flow between two buses.
- Q: How many channels does it have?
- A: It has 1 channel, but it is an octal (8-bit) transceiver, meaning it handles 8 bits of data.
- Q: What is the output type?
- A: The outputs are 3-State, enabling bus isolation when not actively driving.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it suitable for standard 5V logic systems.
- Q: What package is available?
- A: It comes in a 28-CLCC (ceramic leadless chip carrier) package, designed for high-reliability applications.
SNJ54ABT543AFK.pdf
- Q: What is the logic family of the SNJ54ABT543AFK?
- A: It belongs to the 54ABT family, offering high-speed BiCMOS performance with 5V operation.
- Q: What is the function of this IC?
- A: It is a single-channel non-inverting transceiver, allowing bidirectional data flow between two buses.
- Q: How many channels does it have?
- A: It has 1 channel, but it is an octal (8-bit) transceiver, meaning it handles 8 bits of data.
- Q: What is the output type?
- A: The outputs are 3-State, enabling bus isolation when not actively driving.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it suitable for standard 5V logic systems.
- Q: What package is available?
- A: It comes in a 28-CLCC (ceramic leadless chip carrier) package, designed for high-reliability applications.