SN74ABT7819A-12PN

FIFOs Memory Overview

The SN74ABT7819A-12PN is a high-speed, low-power BiCMOS clocked bidirectional first-in, first-out (FIFO) memory device. It integrates two independent 512 × 18 dual-port SRAM FIFOs to buffer data in opposite directions. The component features fast access times of 9 ns with a 50-pF load and simultaneous switching data outputs. It supports data rates up to 100 MHz and operates within a supply voltage range of 4.5 V to 5.5 V.

FIFOs Memory Feature Summary

• Integrates two independent 512 × 18 dual-port SRAM FIFOs for bidirectional data buffering
• Supports asynchronous or coincident free-running clocks for Port A and Port B
• Includes programmable almost-full/almost-empty flags alongside half-full and empty/full indicators
• Utilizes advanced BiCMOS technology for high-speed operation and low power consumption

FIFOs Memory Applications

• Buffering data between microprocessors operating at different clock speeds
• Synchronizing data transfers between buses with independent system clocks
• High-speed interface applications requiring bidirectional data flow control

FIFOs Memory Procurement Notes

Verify the specific speed grade suffix '-12' corresponds to the required 9 ns access time and 100 MHz maximum frequency. Confirm the 'PN' suffix indicates the 80-pin Thin Plastic Quad Flatpack package. Ensure the design accounts for the 0°C to 70°C commercial temperature range specified for this variant.

FIFOs Memory Selection Notes

Select this component when designing systems that require simultaneous bidirectional data buffering with independent clock domains. The SN74ABT7819A is suitable for applications needing programmable depth flags to manage flow control efficiently. Consider the 18-bit data width and 512-word depth against system bandwidth requirements.

FIFOs Memory Part Context

This device belongs to Texas Instruments' Widebus family of logic components. It is part of the SN74ABT series, which utilizes Advanced BiCMOS technology. The SN74ABT7819A specifically addresses the need for complex FIFO management in high-performance digital systems compared to standard single-direction buffers.

FIFOs Memory Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.