SN74V273-15PZA

Overview

The SN74V273-15PZA is a 3.3-V CMOS first-in, first-out (FIFO) memory from the SN74V273 family, fabricated using high-performance submicron technology. It provides a storage capacity of 16384 x 18 bits and supports operation up to 166 MHz with a 6-ns read/write cycle time. The device features user-selectable input and output bus sizing for ×9 or ×18 configurations, big-endian/little-endian byte representation, and independent read and write clocks. It includes programmable almost-empty and almost-full flags, selectable standard or first-word fall-through timing modes, and retransmit capabilities.

Feature Summary

• Supports flexible bus matching with user-selectable ×9 or ×18 data flow on both input and output ports.
• Features independent read and write clock domains allowing simultaneous reading and writing operations.
• Includes programmable flag offsets that can be configured via serial or parallel methods during operation.
• Provides selectable first-word fall-through or standard timing modes for optimized data latency.

Applications

• Buffering large amounts of data in telecommunications systems
• Matching buses of unequal sizes in network applications
• Video processing data buffering
• Data communications interfaces

Procurement Notes

Verify the specific suffix '15' against official Texas Instruments documentation, as it may indicate a specific temperature grade, packaging variant, or internal revision not explicitly detailed in the general SN74V273 datasheet. Confirm availability status directly with the manufacturer or authorized distributors, as lead times and stock levels are subject to change. Ensure the PZA package type matches your PCB footprint requirements.

Selection Notes

Select this component when designing systems requiring deep FIFO buffering with asynchronous clock domain crossing capabilities. It is suitable for applications needing configurable bus widths to interface between 9-bit and 18-bit data paths. Consider the 3.3-V supply voltage and 5-V tolerant inputs if interfacing with legacy logic families. Evaluate the need for programmable flags and retransmit functions for complex data handling scenarios.

Part Context

The SN74V273-15PZA belongs to the SN74V273 series of high-speed CMOS FIFO memories produced by Texas Instruments. This series is designed for high-performance digital signal processing and communication applications. The device utilizes advanced submicron CMOS technology to achieve low power consumption and high speed. It is part of a broader family including SN74V263, SN74V283, and SN74V293, which offer different memory depths.

Replacement Considerations

SN74V273PZ: Standard commercial version of the same FIFO family with identical functional specifications but potentially different environmental ratings or packaging options. Verify pinout compatibility and electrical characteristics before substitution.