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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 54BCT |
| Packaging | | |
| Part Status | Active |
| Logic Type | Buffer, Non-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 SNJ54BCT541FK is an octal buffer from Texas Instruments, designed to provide high-current drive for bus-oriented systems. Operating from a 4.5V to 5.5V supply, it features non-inverting 3-State outputs and can sink up to 48mA, making it ideal for driving high-capacitance backplanes and memory arrays. Housed in a 20-pin ceramic CLCC package, this device is qualified for the -55°C to 125°C military temperature range. The 54BCT logic family combines the low power of CMOS with the high drive of bipolar, offering excellent performance for aerospace, defense, and other high-reliability applications.
- High Output Drive (48mA Sink): Drives high-capacitance loads and long traces with minimal signal degradation.
- Military Temperature Range (-55°C to 125°C): Ensures operation in extreme environments, critical for defense and space.
- Ceramic CLCC Package: Provides hermetic sealing and excellent thermal conductivity, enhancing reliability.
- 3-State Outputs: Allows bus isolation and multiplexing, enabling flexible system architectures.
High-Drive Bus Buffering
In military avionics, the SNJ54BCT541FK can buffer address and data lines to multiple memory or peripheral devices. The 48mA sink capability provides strong drive for high-capacitance PCB traces, reducing signal rise/fall times and improving noise margin.
Backplane Driver
For multi-board systems, this buffer can drive signals across a backplane with multiple card slots. The 3-State outputs allow boards to be removed or inserted without disrupting bus operation, enhancing system maintainability.
Clock Distribution
Although not a dedicated clock driver, the SNJ54BCT541FK can buffer and distribute clock signals to multiple loads. Its low output impedance and high drive current help maintain signal integrity across fan-out networks.
Memory Address Buffering
In high-reliability memory systems, this buffer isolates the memory controller from the capacitive load of multiple DRAM or SRAM devices. The non-inverting function preserves address polarity, simplifying timing analysis.
Space-Grade Data Interface
In satellite and space exploration equipment, the ceramic CLCC package and military temperature range make this buffer suitable for harsh radiation and thermal environments. It ensures reliable data transfer between redundant computing modules.
- Q: What is the logic family of the SNJ54BCT541FK?
- A: It belongs to the 54BCT (BiCMOS Technology) logic family, combining low power with high output drive.
- Q: What is the function of this IC?
- A: It is an octal non-inverting buffer with 8 channels, designed to drive heavily loaded buses or high-capacitance lines.
- Q: What is the output type?
- A: It features 3-State outputs, allowing the buffer to be disabled and isolate the connected bus.
- Q: What is the operating voltage range?
- A: The supply voltage range is 4.5V to 5.5V, compatible with standard 5V logic systems.
- Q: What is the package type?
- A: It is available in a 20-pin CLCC (Ceramic Leadless Chip Carrier) package for surface-mount assembly.
- Q: What is the operating temperature range?
- A: It is specified for the military temperature range of -55°C to 125°C.
SNJ54BCT541FK.pdf
- Q: What is the logic family of the SNJ54BCT541FK?
- A: It belongs to the 54BCT (BiCMOS Technology) logic family, combining low power with high output drive.
- Q: What is the function of this IC?
- A: It is an octal non-inverting buffer with 8 channels, designed to drive heavily loaded buses or high-capacitance lines.
- Q: What is the output type?
- A: It features 3-State outputs, allowing the buffer to be disabled and isolate the connected bus.
- Q: What is the operating voltage range?
- A: The supply voltage range is 4.5V to 5.5V, compatible with standard 5V logic systems.
- Q: What is the package type?
- A: It is available in a 20-pin CLCC (Ceramic Leadless Chip Carrier) package for surface-mount assembly.
- Q: What is the operating temperature range?
- A: It is specified for the military temperature range of -55°C to 125°C.