MC10H641FNG

Clock Buffers, Drivers Overview

The MC10H641FNG is a single-supply, low skew translating 1:9 clock driver manufactured by onsemi. It converts PECL inputs to TTL outputs within the ECLinPS family. The device operates on a single +5.0 V supply with separate pins for ECL (VE) and TTL (VT) power. It features a differential ECL internal design, latched input, and logic enable functionality. The component is housed in a PLCC-28 package and supports an operating temperature range of 0°C to 85°C.

Clock Buffers, Drivers Feature Summary

• Translates PECL signals to TTL with a 1:9 distribution ratio
• Low skew performance guaranteed across part-to-part and output-to-output variations
• Includes latch enable (LEN) and logic enable (EN) control inputs
• Features a VBB reference output for single-ended input configuration

Clock Buffers, Drivers Applications

• Low skew clock distribution networks
• PECL to TTL level translation interfaces
• High-speed digital systems requiring precise timing alignment

Clock Buffers, Drivers Procurement Notes

Verify the Pb-free status indicated by the 'G' suffix in the ordering code. Confirm that the application environment maintains transverse airflow greater than 500 lfpm to ensure electrical parameters meet declared specifications. Check for RoHS compliance documentation if required by local regulations.

Clock Buffers, Drivers Selection Notes

Select this component when a single-supply PECL to TTL translator is required. Ensure the system provides separate VE and VT power supplies. Verify that the load capacitance does not exceed 50 pF per output to maintain specified AC characteristics. Consider thermal resistance and junction temperature calculations for high-frequency applications.

Clock Buffers, Drivers Part Context

This device belongs to the MC10H/100H641 series from onsemi's ECLinPS family. It is designed for optimal power pinning and signal flow through the PLCC-28 package. The 10H version is compatible with positive MECL 10H logic levels.

Clock Buffers, Drivers Replacement Considerations

The MC100H641FNG is the primary alternative within the same datasheet, offering compatibility with positive 100K levels instead of MECL 10H levels. Both share identical pinouts and packaging.

Clock Buffers, Drivers FAQ

How is the VBB pin used?

The VBB pin provides a reference voltage output. For single-ended use, it should be connected to the D input and bypassed with a 0.01 µF capacitor.

What are the logic enable functions?

When LEN is LOW, the latch is transparent. A HIGH on the EN pin forces all outputs LOW. Both inputs are positive ECL inputs.

What is the maximum input frequency?

The maximum input frequency is 65 MHz, defined as the frequency at which output levels will meet a 0.8 V to 2.0 V minimum swing into a 50 pF load.