67C401-15N

Overview

The AMD 67C401-15N is an asynchronous FIFO memory component organized as 64 words by 4 bits. It operates with a data rate of 15MHz and supports a supply voltage range of 4.5V to 5.5V. The maximum supply current is 45mA. This uni-directional device is housed in a 20-pin PDIP package.

Feature Summary

• Asynchronous operation for independent read and write clock domains
• CMOS RAM-based construction for high performance
• Uni-directional data flow capability

Applications

• Temporary data storage
• Data buffering
• Interface bridging between different speed domains

Procurement Notes

Verify the specific suffix '15N' against official Advanced Micro Devices or Microchip documentation to confirm the 15MHz speed grade and 20-PDIP package type. Ensure compatibility with 4.5V–5.5V logic levels. Confirm authenticity through authorized channels, as this legacy CMOS part may have limited availability from primary sources.

Selection Notes

Select this component when a 64x4 word depth is required for asynchronous buffering. The 15MHz speed rating suits moderate-speed applications. Verify that the 20-pin DIP package fits the target PCB layout. Consider the 4-bit width constraint for data bus alignment requirements.

Part Context

This part belongs to the 67C40X/XX series of high-performance CMOS FIFOs. It shares architectural similarities with variants like the 67C401-10NL and 67C401-25J, differing primarily in access speed and package options within the same functional family.

Replacement Considerations

Compatible substitutes include the 67C401-10NL (10MHz) and 67C401-25J (25MHz), provided timing constraints allow for slower or faster operation respectively. Verify pinout compatibility across these variants.