The Texas Instruments SNJ54ABT125W is a military-grade quad bus buffer gate integrated circuit that provides four independent non-inverting buffers with 3-state outputs, fabricated using Advanced BiCMOS (ABT) technology to balance high-speed switching with low power dissipation. Housed in a ceramic flat pack (CFP) package, this device belongs to the 54ABT logic family, which delivers wide supply voltage tolerance, strong bus-driving current capability, and high latch-up immunity typical of BiCMOS designs. Each buffer features a dedicated active-low output-enable control, allowing the 3-state outputs to interface directly with shared backplane or bus-structured architectures. The ABT family further incorporates internal edge-rate control and ESD protection structures, supporting clean signal integrity in noisy environments.
Typical deployment scenarios include military avionics suites, radar signal distribution, secure communications payloads, and flight-critical control buses where deterministic logic operation must be maintained across the full −55°C to +125°C temperature range. The CFP package provides a hermetic, low-profile footprint with excellent thermal and mechanical resilience, making it suitable for high-reliability systems subject to shock, vibration, and extreme thermal cycling. Procurement teams should note that the SNJ prefix signifies compliance with MIL-PRF-38535 manufacturing flow, testing, and traceability standards, qualifying the device for government and defense programs requiring QPL sources. As with many ceramic-packaged military logic functions, availability can be constrained by long fab cycles and intermittent obsolescence actions; engineering groups frequently assess last-time-buy triggers and maintain qualification-test data to mitigate supply-chain disruption.
| Attribute | Value |
|---|---|
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 4 |
| Number of Bits per Element | 1 |
| Output Type | 3-State |
| Current - Output High, Low | 24mA, 48mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 14-CFlatPack |
| Supplier Device Package | 14-CFP |
| Package (last character W) | CFP (ceramic flat pack) |
| High-Level Output Current (IOH) | -24 mA |
| Low-Level Output Current (IOL) | 48 mA |
| Supply Voltage (VCC) | 4.5 V to 5.5 V |
| Propagation Delay tPHL (A to Y) | 1 ns (MIN) / 6.2 ns (MAX) |
| Propagation Delay tPLH (A to Y) | 1 ns (MIN) / 6 ns (MAX) |
| Storage Temperature (Tstg) | -65°C to 150°C |
| Base Device | SN54ABT125 |
| Function | Quad bus buffer gate, 3-state outputs, outputs disabled when OE is high |
Download the current available datasheet for SNJ54ABT125W.
Download Datasheet 
