SN74V215-10PAG

Overview

The SN74V215 is a high-speed, low-power CMOS synchronous FIFO memory with a 512 x 18-bit organization. It supports clock frequencies up to 133 MHz and features read-access times as fast as 5 ns. The device operates on a single +3.3-V supply while providing 5-V input tolerance. It includes programmable almost-empty and almost-full flags, half-full flag capability, and supports both first-word fall-through and standard timing modes for flexible DSP and microprocessor interface control.

Feature Summary

• Supports asynchronous or coincident read and write clocks for independent port operation
• Features dual-register-buffered empty, full, and programmable flags for precise status monitoring
• Enables depth expansion via daisy-chain technique or width expansion capabilities
• Provides glueless interface logic specifically designed for Texas Instruments TMS320 DSPs

Applications

• DSP-to-processor communication interfaces
• Buffering between DSPs and analog front ends (AFE)
• Network data communications systems
• Video signal processing applications

Procurement Notes

Verify the specific package variant matches the required PCB footprint, as the datasheet specifies the 64-pin Thin Quad Flat Package (TQFP). Confirm that the design utilizes a +3.3-V power supply, as this is the sole operating voltage range defined for the component. Ensure that any replacement components maintain the same 18-bit data bus width and synchronous FIFO architecture to preserve system compatibility.

Selection Notes

Select this component when a 512-word deep buffer with an 18-bit data path is required. Choose the SN74V215 over larger variants like the SN74V235 if the application demands lower latency and reduced memory capacity. Consider the FWFT mode support if minimizing read enable signals is critical for the target processor interface.

Part Context

This part belongs to the SN74V2x5 family of DSP-Sync FIFO memories manufactured by Texas Instruments. It shares architectural similarities with the SN74V225, SN74V235, and SN74V245, differing primarily in memory depth. The family is characterized for commercial temperature ranges and utilizes high-performance submicron CMOS technology for low power consumption.

Replacement Considerations

Public confirmed substitute part numbers: SN74V215-10PAG, SN74V215-20PAG, SN74V215-7PAG.