SN74ACT7803-15DL

FIFOs Memory Overview

The SN74ACT7803-15DL is a 512-word by 18-bit synchronous FIFO memory manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports data rates up to 67 MHz with an access time of 12 ns under a 50-pF load. The device utilizes Low-Power Advanced CMOS technology and features independent read and write clocks that can be asynchronous or coincident. It includes programmable flags for half-full, input-ready, output-ready, and almost-full/almost-empty states.

FIFOs Memory Feature Summary

• Supports bidirectional configuration and width expansion without additional logic
• Features patented output edge control circuitry to dampen simultaneous switching noise
• Allows programming of depth-offset values for the almost-full/almost-empty flag

FIFOs Memory Applications

• Buffering asynchronous datapaths at clock rates up to 67 MHz
• Bidirectional data buffering between two devices
• Word-width expansion to create 36-bit wide FIFO configurations

FIFOs Memory Procurement Notes

Verify the specific suffix '15DL' corresponds to the 67 MHz speed grade and SSOP-56 package. Confirm RoHS compliance status and lead finish details via the manufacturer's official packaging addendum. Ensure the operating temperature range of 0°C to 70°C aligns with system requirements. Check current production status as specifications may change.

FIFOs Memory Selection Notes

Select this component when a 512 x 18 bit synchronous buffer is required with fast 12 ns access times. It is suitable for applications needing independent read/write clock domains. Consider pin-compatible alternatives like the SN74ACT7805 or SN74ACT7813 if different timing or capacity characteristics are needed. Verify power dissipation capacitance and supply current limits for thermal management.

FIFOs Memory Part Context

This part belongs to the Widebus family of high-performance FIFO memories from Texas Instruments. It is designed for high-speed data buffering in digital systems. The device shares pinouts with other members of the 74ACT78xx series, facilitating design flexibility. It is characterized for commercial temperature ranges and packaged in shrink small-outline packages.

FIFOs Memory Replacement Considerations

The SN74ACT7805-15DL is a pin-to-pin compatible alternative within the same family.