SN74V245-15PAG

Overview

The SN74V245-15PAG is a synchronous first-in, first-out (FIFO) memory featuring a 4096 x 18-bit organization. It supports clock frequencies up to 133 MHz with read-access times as fast as 7.5 ns. The device operates on a 3.3-V supply and includes programmable almost-empty and almost-full flags. It is packaged in a 64-pin Thin Quad Flat Package (TQFP).

Feature Summary

• Supports asynchronous or coincident read and write clocks for flexible interface control.
• Features two fixed flags and two programmable flags for precise buffer management.
• Enables depth expansion using daisy-chain techniques or First-Word Fall-Through mode.
• Provides output enable functionality to place the data bus in a high-impedance state.

Applications

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

Procurement Notes

Verify that the specific suffix '15PAG' corresponds to the commercial temperature range of 0°C to 70°C and the 64-pin TQFP package. Confirm RoHS compliance status and check for any specific environmental certifications required by your manufacturing standards before finalizing procurement orders.

Selection Notes

Select this component when an 18-bit wide synchronous FIFO with a 4096-word depth is required. Ensure the design utilizes independent read and write clocks. Verify that the 3.3-V power supply aligns with the system architecture and that the 64-pin TQFP footprint fits the PCB layout constraints.

Part Context

This part belongs to the SN74V215, SN74V225, SN74V235, and SN74V245 family of DSP-SYNC FIFO memories. The family differentiates primarily by memory depth: 512, 1024, 2048, and 4096 words respectively. All share identical pinouts and functional descriptions.

Replacement Considerations

SN74V245-10PAG