C67402AN

FIFOs Memory Overview

The C67402AN is an asynchronous FIFO memory component manufactured by Advanced Micro Devices. It features a memory organization of 64 words by 5 bits. The device operates with a supply voltage range of 4.75 V to 5.25 V and supports a clock frequency up to 15 MHz. Typical access time is specified at 40 ns. It is housed in a 16-pin PDIP package.

FIFOs Memory Feature Summary

• Uni-directional data transfer capability for sequential memory operations
• Asynchronous interface design allowing independent read and write clock domains
• Fall-through architecture providing immediate data availability upon write

FIFOs Memory Applications

• Data buffering between systems operating at different clock speeds
• Interface bridging in high-speed digital logic circuits
• Temporary storage in microprocessor-based data acquisition systems

FIFOs Memory Procurement Notes

Verify the manufacturer designation, as Advanced Micro Devices' semiconductor division was acquired by AMD, while other entities may use similar naming. Confirm the specific suffix 'AN' corresponds to the 16-PDIP package and standard voltage range. Check RoHS compliance status against current regulatory requirements, as older stock may vary. Ensure the datasheet matches the 64x5 bit organization and 40ns timing specifications before integration.

FIFOs Memory Selection Notes

Select this component when a small, uni-directional buffer is required for asynchronous data transfer. The 64-word depth suits applications with moderate burst sizes. Verify that the 5-bit word width meets system data path requirements. Consider the 15 MHz maximum frequency limit for high-speed interfaces. Compare against the C67401 if 4-bit width is sufficient or if bidirectional functionality is needed.

FIFOs Memory Part Context

This part belongs to the C67401/2 series of high-speed FIFO memories. The C67402 variant specifically provides 5-bit word width, whereas the C67401 offers 4-bit width. Both share the same 64-word depth and fall-through architecture. These components were designed for legacy digital systems requiring reliable asynchronous buffering without complex control logic.

FIFOs Memory Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with C67401AN if 4-bit width is acceptable. Verify pin compatibility and electrical characteristics with any potential alternative asynchronous FIFOs from other manufacturers.