MC88920EG

Overview

The MC88920EG is a single-circuit clock buffer manufactured by Renesas Electronics Corporation, designed for CISC and RISC microprocessor applications. It accepts CMOS or TTL input signals and provides six CMOS outputs with a 1:6 distribution ratio. The device supports maximum frequencies up to 50 MHz and operates on a single 4.5V to 5.5V supply voltage. Packaged in a 20-SOIC surface-mount case, it functions without differential signaling capabilities and includes an internal PLL.

Feature Summary

• Six-channel CMOS output distribution from a single input
• Supports CMOS and TTL input logic levels
• Integrated PLL for clock signal conditioning
• Operates within a 4.5V to 5.5V supply range

Applications

• CISC/RISC Microprocessor clock distribution
• System timing synchronization
• Digital circuit clock buffering

Procurement Notes

Verify the specific manufacturing lot and RoHS compliance status through official Renesas documentation before procurement. Confirm that the 20-SOIC package dimensions match the target PCB footprint requirements. Ensure the operating temperature range of 0°C to 70°C aligns with the intended environmental conditions.

Selection Notes

Select this component when a single-ended CMOS or TTL source requires expansion to six identical CMOS clock lines. The 50 MHz frequency limit defines its suitability for lower-speed digital systems. Verify that the 4.5V to 5.5V supply voltage matches the system power architecture, as it does not support lower voltage rails.

Part Context

This part belongs to the Application Specific Clock/Timing category. It serves as a dedicated buffer for processor-based systems requiring stable clock distribution. The 20-SOIC package allows for standard surface-mount assembly processes.

Replacement Considerations

No public substitute part numbers are documented for this specific model.