67C4033-15NL

Overview

The AMD 67C4033-15NL is an asynchronous FIFO memory IC organized as 64 words by 5 bits. It operates with a supply voltage range of 4.5V to 5.5V and supports clock frequencies up to 15MHz. The device features uni-directional data transfer and draws a maximum supply current of 45mA. It is housed in a 20-pin PDIP package.

Feature Summary

• Asynchronous first-in-first-out buffering for uni-directional data flow
• CMOS RAM-based architecture for high performance
• Standard TTL-compatible logic levels

Applications

• Data buffering between asynchronous systems
• Interface bridging in digital communication circuits
• Temporary storage in microprocessor systems

Procurement Notes

Verify the exact bit-width configuration, as some datasheets describe this series as 8-bit wide while specific listings indicate 5-bit. Confirm the 20-DIP package type and ensure the 15MHz speed grade matches system requirements. Check lifecycle status as older AMD parts may be obsolete or limited availability.

Selection Notes

Select this component when a small-capacity, uni-directional asynchronous buffer is required. Ensure the system voltage aligns with the 4.5V-5.5V range. Consider the 64-word depth sufficient for the intended buffering needs before choosing over larger capacity alternatives.

Part Context

This part belongs to the Advanced Micro Devices 67C40xx series of CMOS FIFOs. These devices are designed for general-purpose data buffering applications requiring simple interface control signals such as read and write clocks.

Replacement Considerations

Check for direct cross-references from other manufacturers offering identical 64x5 asynchronous FIFO specifications in a 20-pin DIP package. Verify pin compatibility before substitution.