SN74ABT7819A-15PN

FIFOs Memory Overview

The SN74ABT7819A-15PN 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 PN package provides an 80-pin Thin Plastic Quad Flatpack configuration. It supports asynchronous or coincident free-running clocks for Port A and Port B, with read and write operations synchronized to these independent system clocks. The device features programmable almost-full/almost-empty flags 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 simultaneous bidirectional data buffering
• Supports asynchronous or coincident free-running port clocks for independent synchronization
• Includes programmable almost-full and almost-empty status flags for flow control
• Features synchronized input-ready and output-ready flags for reliable interface control

FIFOs Memory Applications

• Microprocessor interface control logic
• Synchronous bus buffering between different clock domains
• Data rate matching between asynchronous systems
• High-speed digital signal processing data storage

FIFOs Memory Procurement Notes

Verify the specific speed grade suffix matches the required timing specifications for your application. Confirm the PN package designation corresponds to the 80-pin Thin Plastic Quad Flatpack form factor. Ensure the operating temperature range aligns with your environmental requirements. Cross-reference the datasheet revision date to confirm current electrical characteristics and pinout definitions before finalizing procurement.

FIFOs Memory Selection Notes

Select this component when bidirectional data buffering with independent clock domains is required. The ABT series offers advanced BiCMOS technology for high performance. Consider the 80-pin package constraints for PCB layout. Evaluate the programmable flag offsets if specific depth monitoring is necessary. Verify that the 18-bit data width fits your system architecture.

FIFOs Memory Part Context

This part belongs to Texas Instruments' Widebus family of logic devices. It utilizes advanced BiCMOS technology to achieve fast access times. The SN74ABT7819A is designed for high-density applications requiring robust FIFO functionality. It complements other logic components by providing dedicated memory buffering capabilities.

FIFOs Memory Replacement Considerations

Check for compatible parts within the SN74ABT7819A series with different speed grades or package options. Verify pin compatibility if substituting with other 80-pin FIFO devices. Ensure equivalent electrical characteristics and functional behavior are maintained.