SN74ACT7804-20DLR

FIFOs Memory Overview

The SN74ACT7804-20DLR is a 512-word by 18-bit asynchronous FIFO memory manufactured by Texas Instruments. It utilizes low-power advanced CMOS technology and features 3-state outputs. The device supports data rates up to 50 MHz with access times of 15 ns under a 50-pF load. It operates within a supply voltage range of 4.5 V to 5.5 V and an ambient temperature range of 0°C to 70°C. The component includes full, empty, half-full, and programmable almost-full/almost-empty status flags.

FIFOs Memory Feature Summary

• Supports independent write and read clock domains for asynchronous operation
• Includes programmable almost-full and almost-empty status flags
• Features three-state data outputs for bus sharing applications

FIFOs Memory Applications

• Buffering data between high-speed processors and slower peripherals
• Clock domain crossing in digital logic systems
• Data storage in communication interface circuits

FIFOs Memory Procurement Notes

Verify the specific suffix 'DLR' indicates the tape-and-reel packaging variant when sourcing this part number. Confirm that the -20 speed grade matches the required timing specifications for your design. Ensure the operating environment remains within the specified commercial temperature limits during deployment.

FIFOs Memory Selection Notes

Select this component when a 512-word depth and 18-bit width are required for buffering tasks. Consider the 15 ns access time and 50 MHz maximum frequency against system timing constraints. Evaluate the need for programmable flags versus fixed threshold monitoring before finalizing the design choice.

FIFOs Memory Part Context

This device belongs to the Widebus family of FIFO memories from Texas Instruments. It shares pin compatibility with related models such as the SN74ACT7806 and SN74ACT7814, facilitating design reuse across different memory depths or synchronous/asynchronous requirements within the same product line.

FIFOs Memory Replacement Considerations

The SN74ACT7806 and SN74ACT7814 are pin-compatible alternatives within the same family. Verify if the specific speed grade or memory organization of these substitutes meets the application requirements before substitution.