SN74ACT7805-25DL

FIFOs Memory Overview

The SN74ACT7805-25DL is a 256-word by 18-bit clocked first-in, first-out (FIFO) memory device manufactured by Texas Instruments. It utilizes low-power advanced CMOS technology and operates within a supply voltage range of 4.5 V to 5.5 V. The component supports data rates up to 67 MHz with a maximum access time of 12 ns under a 50-pF load. It features independent read and write clocks that can be asynchronous or coincident, along with programmable almost-full/almost-empty flags and half-full status indicators.

FIFOs Memory Feature Summary

• Supports bidirectional configuration and word-width expansion without additional logic
• Features free-running read and write clocks that can be asynchronous or coincident
• Includes input-ready and output-ready flags synchronized to respective clocks
• Utilizes patented output edge control circuitry to dampen simultaneous switching noise

FIFOs Memory Applications

• Buffering asynchronous data paths in high-speed digital systems
• Bidirectional data buffering configurations between system components
• Word-width expansion for increasing data bus width in memory architectures

FIFOs Memory Procurement Notes

Verify the specific speed grade suffix corresponds to the required timing specifications for your application design. Confirm package availability matches the shrink small-outline requirement. Ensure operating temperature ranges align with environmental conditions. Check for latest revision updates in official documentation before finalizing procurement orders.

FIFOs Memory Selection Notes

Select this component when an 18-bit wide FIFO buffer is required with independent clock domains. Consider the 12 ns access time and 67 MHz capability for high-speed interface requirements. Evaluate the need for programmable flag offsets if custom depth monitoring is necessary. Ensure compatibility with existing TTL-compatible logic levels in the system design.

FIFOs Memory Part Context

This device belongs to the Widebus family of Texas Instruments logic products. It is designed for applications requiring substantial data buffering capabilities with wide data buses. The part integrates both synchronous control logic and RAM arrays into a single package to simplify system design and reduce component count.

FIFOs Memory Replacement Considerations

Pin-to-pin compatible with SN74ACT7803 and SN74ACT7813.