SN74ACT7813-40DLR

FIFOs Memory Overview

The SN74ACT7813-40DLR is a 64-word by 18-bit clocked first-in, first-out memory device 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 25 MHz with a maximum access time of 20 ns. The component utilizes low-power advanced CMOS technology and features asynchronous reset capabilities. It is packaged in a shrink small-outline package with 56 pins.

FIFOs Memory Feature Summary

• Supports free-running read and write clocks that can be asynchronous or coincident
• Includes input-ready and output-ready flags synchronized to independent system clocks
• Features programmable almost-full/almost-empty flag with configurable depth offsets
• Enables bidirectional configuration and width expansion without additional logic

FIFOs Memory Applications

• Buffering asynchronous datapaths
• Synchronizing data between independent system clocks
• Bidirectional data buffering configurations

FIFOs Memory Procurement Notes

Verify the specific suffix 'DLR' against official documentation to confirm reel packaging and moisture sensitivity level ratings. Ensure the selected variant matches the required operating temperature range of 0°C to 70°C. Confirm RoHS compliance status and lead finish specifications prior to ordering to meet assembly requirements.

FIFOs Memory Selection Notes

Select this component for applications requiring 18-bit wide data paths with 64-word depth. The -40 speed grade provides a 25 MHz maximum clock frequency suitable for moderate-speed synchronization tasks. Consider the bidirectional expansion capability if dual-device configurations are necessary for system design.

FIFOs Memory Part Context

This part belongs to the Widebus family of FIFO memories from Texas Instruments. It shares pin compatibility with the SN74ACT7803 and SN74ACT7805 models. The device incorporates patented output edge control circuitry to dampen simultaneous switching noise, enhancing signal integrity in high-density digital systems.

FIFOs Memory Replacement Considerations

The SN74ACT7813-40DLR is pin-to-pin compatible with the SN74ACT7803 and SN74ACT7805 models. Verify that the substitute part number matches the required 25 MHz speed grade and 18-bit data width specifications.