SN74V225-15PAG

Overview

The SN74V225-15PAG is a synchronous FIFO memory with a 1024 x 18-bit organization, packaged in a 64-pin TQFP. It operates on a 3.3-V supply and supports clock frequencies up to 133 MHz with a 10-ns access time. The device features asynchronous or coincident read/write clocks, programmable almost-empty/full flags, and half-full flag capability. It supports both standard and first-word fall-through timing modes.

Feature Summary

• Supports asynchronous or coincident read and write clocks for flexible interface control
• Features programmable almost-empty and almost-full flags with default settings
• Provides single or double register-buffered empty and full flags
• Capable of depth expansion using daisy-chain techniques

Applications

• DSP-to-processor communication interfaces
• DSP-to-analog front end buffering
• Network data communications
• Video signal processing systems

Procurement Notes

Verify the specific suffix '15PAG' against official Texas Instruments documentation to confirm the exact speed grade and commercial temperature range (0°C to 70°C). Ensure the package type matches the required 64-pin Thin Quad Flat Package footprint for your PCB layout.

Selection Notes

Select this component when a 1024 x 18-bit synchronous buffer is required for DSP-SYNC applications. Consider the SN74V215, SN74V235, or SN74V245 if different memory depths are needed. Verify that the 3.3-V logic levels and 5-V input tolerance meet system requirements.

Part Context

This part belongs to the SN74V2x5 family of high-speed CMOS FIFO memories from Texas Instruments. The family includes variants with 512, 2048, and 4096 word depths. These devices utilize submicron CMOS technology for low power consumption and high performance in digital signal processing environments.

Replacement Considerations

Public confirmed substitute: SN74V235-15PAG.