SN74V273-6PZA

FIFOs Memory Overview

The SN74V273-6PZA is a synchronous first-in, first-out (FIFO) memory device manufactured by Texas Instruments. It provides a storage capacity of 16384 x 18 bits or 32768 x 9 bits. The component operates with a maximum clock frequency of 166 MHz and features a read/write cycle time of 6 ns. It utilizes a single 3.3-V power supply ranging from 3.15 V to 3.45 V. The device is housed in an 80-pin LQFP package.

FIFOs Memory Feature Summary

• Supports flexible bus matching with user-selectable input and output port widths of either 9-bit or 18-bit.
• Offers selectable First-Word Fall-Through (FWFT) or standard timing modes for data access control.
• Includes programmable almost-empty and almost-full flags with configurable offset thresholds.
• Features independent read and write clocks allowing simultaneous data operations.

FIFOs Memory Applications

• Network buffering systems
• Video signal processing
• Telecommunications equipment
• Data communications interfaces

FIFOs Memory Procurement Notes

Verify the specific suffix '6' against the official datasheet to confirm the speed grade matches project requirements. Ensure the PZA package designation corresponds to the required 80-pin LQFP footprint. Confirm RoHS compliance status through current manufacturer documentation before finalizing procurement.

FIFOs Memory Selection Notes

Select this component when deep memory depth combined with high-speed operation is required. It is suitable for applications needing to buffer large data volumes between buses of unequal sizes. Consider the 3.3-V operating voltage and 5-V tolerant inputs for system compatibility.

FIFOs Memory Part Context

This part belongs to the SN74V2xx series of high-speed CMOS FIFO memories. It shares architectural similarities with the SN74V263, SN74V283, and SN74V293, differing primarily in memory depth and organization. All members support similar bus-matching and flag programming features.

FIFOs Memory Replacement Considerations

SN74V263-6PZA offers smaller depth options. SN74V283-6PZA and SN74V293-6PZA provide larger memory capacities within the same package and electrical specifications.

FIFOs Memory FAQ

How is the bus width configured?

The input and output bus widths are set during the master reset cycle using the IW and OW pins to select between 9-bit and 18-bit configurations.

What is the function of the RT pin?

The RT pin initiates a retransmit operation, setting the read pointer to the first memory location to allow rereading of previously stored data.