SN74ACT7802-25FN

FIFOs Memory Overview

The SN74ACT7802-25FN is a 1024-word by 18-bit strobed first-in, first-out memory device manufactured using low-power advanced CMOS technology. It supports data rates up to 40 MHz with access times of 30 ns under a 50-pF load and features a typical fall-through time of 20 ns. The component operates within a supply voltage range of 4.5 V to 5.5 V and includes programmable almost-full/almost-empty flags alongside standard empty, full, and half-full indicators. It utilizes a 68-pin FN package.

FIFOs Memory Feature Summary

• Supports asynchronous or coincident load and unload clocks for flexible data handling
• Features high-output drive capability suitable for direct bus interface applications
• Includes three-state outputs controlled by an output-enable input
• Allows user-programmable depth-offset values for the almost-full/almost-empty flag

FIFOs Memory Applications

• High-speed parallel data buffering between independent clock domains
• Data rate matching in communication systems
• Word-width expansion configurations via cascading

FIFOs Memory Procurement Notes

Verify the specific speed grade suffix against the required timing specifications before ordering. Confirm that the 68-pin FN package format aligns with the target PCB footprint. Ensure the design accommodates the recommended operating temperature range and power supply requirements specified in the datasheet.

FIFOs Memory Selection Notes

Select this component when a wide 18-bit data path is required for FIFO operations. Consider the -25 speed grade if system timing allows for 30 ns access times at 40 MHz. Evaluate the need for programmable flag offsets versus default settings during the design phase.

FIFOs Memory Part Context

This device belongs to Texas Instruments' Widebus family, designed for high-density parallel data storage. It complements other members of the ACT series by providing specialized memory functions rather than basic logic gates. The part is characterized for commercial temperature ranges.

FIFOs Memory Replacement Considerations

Public confirmed substitute part numbers: SN74ACT7802-40FN, SN74ACT7802-60FN.