9423DC

FIFOs Memory Overview

The National Semiconductor 9423DC is an asynchronous FIFO memory integrated circuit. It provides a data storage capacity of 64 words by 4 bits, organized as a 64x4 array. The device functions as a high-speed buffer for digital data streams, facilitating interface matching between components operating at different clock rates or data widths.

FIFOs Memory Feature Summary

• Asynchronous operation allowing independent read and write clock domains
• High-speed data buffering capability for digital interfaces
• Compact integrated circuit packaging for space-constrained designs

FIFOs Memory Applications

• Data buffering in mixed-clock domain systems
• Interface adaptation between microprocessors and peripherals
• Temporary data storage in communication protocols

FIFOs Memory Procurement Notes

Verify the manufacturer designation, as National Semiconductor assets were acquired by Microchip Technology. Confirm the specific suffix indicates the standard bulk package variant. Ensure the component meets current RoHS compliance standards if required for your assembly process. Cross-reference the DigiKey part number 2156-9423DC-ND for accurate sourcing details.

FIFOs Memory Selection Notes

Select this component when a small, low-pin-count asynchronous buffer is required for 4-bit wide data paths. It is suitable for applications needing minimal latency without complex control logic. Consider pin compatibility and voltage levels against existing system requirements before integration.

FIFOs Memory Part Context

This component belongs to the legacy National Semiconductor FIFO memory family. These devices were widely used in industrial and computing applications prior to the company's acquisition. The 9423DC represents a specific density configuration within the broader series of asynchronous first-in-first-out buffers.

FIFOs Memory Replacement Considerations

Check for direct pin-compatible replacements from Microchip or other manufacturers offering equivalent 64x4 asynchronous FIFOs. Verify that substitute parts maintain identical timing characteristics and power consumption profiles to ensure seamless integration.