SN74ALVC7813-20DLR

FIFOs Memory Overview

The SN74ALVC7813-20DLR is a low-power clocked first-in, first-out memory device featuring a 64 x 18-bit organization. It operates from a 3-V to 3.6-V supply and supports data rates up to 50 MHz with a maximum access time of 13 ns under a 50-pF load. The component utilizes free-running read and write clocks that can be asynchronous or coincident. Status flags include half-full, input-ready, output-ready, and a programmable almost-full/almost-empty flag. It is packaged in a 56-pin shrink small-outline package.

FIFOs Memory Feature Summary

• Supports bidirectional configuration and width expansion without additional logic
• Features programmable almost-full/almost-empty offset values for customized depth monitoring
• Provides independent system clock synchronization for read and write operations
• Includes asynchronous reset functionality to clear synchronizing registers and status flags

FIFOs Memory Applications

• Buffering asynchronous data paths at high clock rates
• Bidirectional data buffering configurations between systems
• Word-width expansion applications requiring 36-bit data handling
• Synchronization interfaces between different clock domains

FIFOs Memory Procurement Notes

Verify the specific suffix 'DLR' corresponds to the tape-and-reel packaging variant rather than the tube-packaged version. Confirm the '-20' speed grade matches the required 50 MHz operational frequency for your design. Ensure the 3-V to 3.6-V supply voltage range aligns with your system power rails. Check for current production status as legacy ALVC series components may have limited availability.

FIFOs Memory Selection Notes

Select this component when a 18-bit wide FIFO buffer is required within a 3-V logic family. The -20 speed grade is suitable for designs needing up to 50 MHz throughput. Consider the bidirectional capability if data flow direction changes are necessary. Verify that the 56-pin SSOP footprint fits your board layout constraints compared to wider standard packages.

FIFOs Memory Part Context

This device belongs to Texas Instruments' Widebus family of low-power advanced CMOS logic products. It is designed specifically for 3-V to 3.6-V VCC operation, distinguishing it from older 5-V ACT variants. The ALVC technology offers lower power consumption while maintaining fast access times suitable for modern embedded systems and communication interfaces.

FIFOs Memory Replacement Considerations

The datasheet confirms pin-to-pin compatibility with SN74ACT7803, SN74ACT7805, and SN74ACT7813. Note that these ACT equivalents operate at 5-V, requiring level shifting or voltage rail adjustments. No direct ALVC replacements are listed in the provided documentation.