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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 54BCT |
| Packaging | | |
| Part Status | Active |
| Logic Type | Transceiver, Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 12mA, 48mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-CLCC |
| Supplier Device Package | 20-LCCC (8.89x8.89) |
| ROHS |  |
The SNJ54BCT640FK is an inverting transceiver from Texas Instruments, part of the 54BCT logic family. It features a single channel with 3-State outputs, enabling bidirectional data flow with signal inversion. Operating from 4.5V to 5.5V, it provides 12mA source and 48mA sink current for robust bus driving. Housed in a 20-CLCC ceramic package, it operates over the military temperature range of -55°C to 125°C. Ideal for high-speed bus interfacing, data acquisition, and military communication systems.
- Inverting Function: Eliminates the need for external inverters, reducing component count and PCB area.
- High Sink Current (48mA): Drives heavy bus loads and long traces, ensuring signal integrity.
- 3-State Outputs: Enables bus sharing and multiplexing, critical for multi-processor systems.
- Ceramic CLCC Package: Provides excellent thermal conductivity and hermetic sealing for harsh environments.
Inverting Bus Transceiver
Use the SNJ54BCT640FK when signal inversion is required in a data bus. The inverting function simplifies logic design by eliminating external inverters.
High-Speed Data Acquisition
In data acquisition systems, this transceiver buffers and inverts signals between ADCs and DSPs. The 48mA sink current drives long PCB traces with minimal distortion.
Military Communication Systems
For military radios and radar, the device provides reliable bidirectional data transfer. Its ceramic CLCC package and -55°C to 125°C range ensure rugged operation.
Redundant Bus Architectures
In fault-tolerant systems, the 3-State outputs allow multiple transceivers to share a bus. The inverting function can be used to create complementary bus signals for error detection.
Industrial Process Control
In PLC backplanes, it interfaces between controller cards and I/O modules. The high drive current ensures signal integrity over backplane connectors.
Test Equipment Interfaces
In ATE systems, the transceiver routes test vectors to DUTs. The inverting capability is useful for generating complementary test patterns.
- Q: What is the logic family of the SNJ54BCT640FK?
- A: It belongs to the 54BCT logic family, known for high-speed bipolar CMOS technology.
- Q: What is the function of this IC?
- A: It is an inverting transceiver, which inverts the data signal during transmission.
- Q: How many channels does it have?
- A: It has 1 channel (8-bit bus width) for bidirectional data transfer.
- 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, compatible with standard 5V logic systems.
- Q: What package is available?
- A: It comes in a 20-CLCC (ceramic leadless chip carrier) package.
SNJ54BCT640FK.pdf
- Q: What is the logic family of the SNJ54BCT640FK?
- A: It belongs to the 54BCT logic family, known for high-speed bipolar CMOS technology.
- Q: What is the function of this IC?
- A: It is an inverting transceiver, which inverts the data signal during transmission.
- Q: How many channels does it have?
- A: It has 1 channel (8-bit bus width) for bidirectional data transfer.
- 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, compatible with standard 5V logic systems.
- Q: What package is available?
- A: It comes in a 20-CLCC (ceramic leadless chip carrier) package.