SN74V225-10PAG

Overview

The SN74V225-10PAG is a synchronous FIFO memory featuring a 1024 x 18-bit organization and an 18-bit data bus. It operates on a single +3.3-V supply with 5-V input tolerance, supporting clock frequencies up to 133 MHz and read access times as fast as 5 ns. The device utilizes high-performance submicron CMOS technology and is packaged in a 64-pin Thin Quad Flat Package (TQFP).

Feature Summary

• Supports First-Word Fall-Through (FWFT) or standard timing modes for flexible interface control.
• Features asynchronous or coincident read and write clocks for independent port operation.
• Includes programmable almost-empty and almost-full flags with default offset settings.
• Provides half-full flag capability and expandability in depth and width.

Applications

• DSP-to-processor communication interfaces.
• Buffering between DSPs and analog front ends (AFE).
• Network, video, and data communications systems.

Procurement Notes

Verify the specific suffix '10' against official Texas Instruments documentation to confirm the exact speed grade and timing characteristics. Ensure the package designation matches the required 64-pin TQFP form factor for your PCB layout. Confirm RoHS compliance status through current manufacturer datasheets before finalizing procurement specifications.

Selection Notes

Select this component when a 1024-word depth with 18-bit width is required for synchronous buffering applications. Consider the 5-V input tolerance if interfacing with legacy logic levels while maintaining a 3.3-V system core. Evaluate the need for FWFT mode versus standard mode based on your specific latency requirements and control signal availability.

Part Context

This part belongs to the SN74V2x5 family of DSP-SYNC FIFO memories, which includes variants with different depths such as the SN74V215 (512 words), SN74V235 (2048 words), and SN74V245 (4096 words). All members share similar functional architectures and pinouts, differing primarily in memory array size and associated timing parameters.

Replacement Considerations

SN74V225-15PAG