SN74V293-7GGM

FIFOs Memory Overview

The SN74V293-7GGM is a high-speed, deep CMOS first-in, first-out (FIFO) memory fabricated using Texas Instruments' submicron technology. It provides a storage capacity of 65536 × 18 or 131072 × 9 bits. The device supports independent read and write clocks operating up to 166 MHz with a 6-ns cycle time. It features user-selectable input and output bus widths of ×9 or ×18, allowing flexible data flow matching. The component operates on a 3.3-V supply and includes 5-V tolerant inputs.

FIFOs Memory Feature Summary

• Supports user-selectable input and output port bus sizing for flexible data flow matching between unequal buses.
• Features big-endian and little-endian user-selectable byte representation for varied data format requirements.
• Provides programmable almost-empty and almost-full flags with selectable synchronous or asynchronous timing modes.
• Enables zero-latency retransmit functionality to reread data from the FIFO without disturbing the write pointer.

FIFOs Memory Applications

• Network buffering applications requiring large data storage capacity.
• Video processing systems needing high-speed data handling.
• Telecommunications equipment utilizing bus size matching.
• Data communications interfaces requiring glueless connection to DSPs.

FIFOs Memory Procurement Notes

Verify the specific ordering suffix '7GGM' against the manufacturer's current production status, as datasheets may list generic package types like GGM without specifying the exact suffix variant. Confirm RoHS compliance and lead times directly with authorized distributors. Ensure the selected package matches the required PCB footprint and thermal specifications for the target application environment.

FIFOs Memory Selection Notes

Select this component when deep memory depth and high-speed operation are critical for system performance. Consider the SN74V293 specifically if the application requires 65536 × 18 bit capacity. Evaluate the need for independent read/write clocks and flexible bus matching capabilities. Verify that the 3.3-V logic levels and 5-V tolerant inputs align with the surrounding circuitry voltage requirements.

FIFOs Memory Part Context

The SN74V293 belongs to the SN74V2xx family of high-speed CMOS FIFO memories from Texas Instruments. This family includes variants with different memory depths, such as the SN74V263, SN74V273, and SN74V283. All members share similar architectural features, including independent clocking, programmable flags, and flexible bus configurations, designed for high-performance digital signal processing and data communication applications.

FIFOs Memory Replacement Considerations

SN74V293