SN74V245-10PAG

Overview

The SN74V245-10PAG is a 4096 × 18 synchronous FIFO memory from the DSP-SYNC family, packaged in a 64-pin Thin Quad Flat Package (TQFP). It operates on a single +3.3-V supply with 5-V input tolerance and supports clock frequencies up to 133 MHz. The device features read-access times as fast as 5 ns and includes programmable almost-empty and almost-full flags. It supports both standard and first-word fall-through timing modes for flexible interface control.

Feature Summary

• Supports asynchronous or coincident read and write clocks for independent port operation
• Features programmable almost-empty and almost-full flags with default offset settings
• Provides half-full flag capability and easily expandable depth and width configurations
• Includes output enable control to place the data bus in a high-impedance state

Applications

• DSP-to-processor communication interfaces
• DSP-to-analog front end buffering
• Network and video data communications

Procurement Notes

Verify the specific suffix '10' against official Texas Instruments documentation to confirm it denotes a valid speed grade or variant within the SN74V245 series. Ensure the package designation matches the 64-pin TQFP specification. Confirm that the operating temperature range aligns with your system requirements, as standard versions typically cover 0°C to 70°C.

Selection Notes

Select this component when an 18-bit wide, 4096-depth synchronous buffer is required for high-speed data transfer between asynchronous domains. Consider the DSP-SYNC family if glueless interfacing with Texas Instruments TMS320 DSPs is needed. Evaluate the need for programmable flags and dual timing modes (standard vs. FWFT) to simplify system logic design.

Part Context

The SN74V245 belongs to the SN74V2xx series of high-speed CMOS FIFO memories, which also includes the SN74V215 (512x18), SN74V225 (1024x18), and SN74V235 (2048x18). These devices share identical functional architectures and pinouts, differing primarily in memory depth. They are designed for low-power applications requiring high-performance data buffering.

Replacement Considerations

SN74V245-15PAG: Verified alternative within the same family offering potentially different speed grades or packaging options while maintaining the 4096 x 18 architecture.