5962-9470401QXA

Overview

The SN54ABT7819 is a military-grade, high-speed, low-power Advanced BiCMOS bidirectional clocked FIFO memory. It integrates two independent 512 × 18 dual-port SRAMs for buffering data in opposite directions. The device supports asynchronous or coincident free-running clocks and features programmable almost-full/almost-empty flags. It operates within a supply voltage range of 4.5 V to 5.5 V and withstands temperatures from -55°C to 125°C.

Feature Summary

• Advanced BiCMOS technology enables fast access times with simultaneous-switching outputs.
• Dual independent 512 x 18 FIFOs buffer data in opposite directions using synchronous interfaces.
• Programmable depth offsets allow customization of almost-full and almost-empty flag thresholds.
• Military qualification ensures reliable operation across the full extended temperature range.

Applications

• High-speed digital signal processing systems requiring bidirectional data buffering
• Microprocessor interface control logic for synchronous bus architectures
• Military and aerospace electronic systems demanding wide temperature tolerance

Procurement Notes

Verify component authenticity through authorized channels due to its military specification status. Confirm package integrity as the device utilizes ceramic packaging sensitive to mechanical stress. Ensure compatibility with existing system power supplies and clock frequencies before integration into final designs.

Selection Notes

Select this component when bidirectional data flow between asynchronous domains is required. Verify that the 18-bit data width matches system requirements. Ensure the design accommodates the specific control logic signals necessary for managing the independent port clocks and programmable flag states effectively.

Part Context

Released under DSCC Standard Microcircuit Drawing 5962-9470401QXA, this part belongs to the Texas Instruments Widebus family. It represents a specialized solution for complex data routing applications where precise synchronization and high throughput are critical operational requirements.

Replacement Considerations

The SNJ54ABT7819GB serves as the commercial equivalent. Verify pinout compatibility and electrical specifications against current design constraints before substitution.