MC100EL34DG

Clock Generators, PLLs, Frequency Synthesizers Overview

The MC100EL34DG is a low skew clock generation chip from onsemi, designed for ÷2, ÷4, and ÷8 frequency division. It features synchronous internal dividers with precisely aligned common output edges. The device supports PECL mode (VCC = 4.2 V to 5.7 V, VEE = 0 V) and NECL mode (VCC = 0 V, VEE = −4.2 V to −5.7 V). Key electrical parameters include a maximum toggle frequency of 1.1 GHz, 50 ps typical output-to-output skew, and a power supply current of 39 mA at 25°C. It includes a Master Reset for synchronization and operates within a temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Low skew ÷2, ÷4, ÷8 clock generation with 50 ps typical output-to-output skew
• Synchronous Enable/Disable and Master Reset for system synchronization
• Internal input 75 kΩ pulldown resistors on CLK, EN, and MR pins
• Supports both PECL and NECL operating voltage ranges

Clock Generators, PLLs, Frequency Synthesizers Applications

• Low skew clock generation applications
• System synchronization using Master Reset
• PECL/NECL clock distribution networks

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the discontinuation status before design-in, as the datasheet notes this device is not recommended for new designs. Confirm package availability in SOIC-16 tubes of 48 units. Ensure compliance with RoHS and Pb-Free requirements if applicable to the specific manufacturing lot.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the MC100EL34DG when precise alignment of divided clock edges is required due to its synchronous divider architecture. Choose between PECL or NEC modes based on the system power supply configuration. Ensure the input clock frequency does not exceed the 1.1 GHz maximum toggle frequency limit.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the MC10/100EL34 series of ECL clock generation chips. The '100' prefix indicates temperature compensation features included in the 100 Series variants. It is part of onsemi's broader portfolio of ECL logic devices designed for high-speed timing applications.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The datasheet explicitly states the device is discontinued and not recommended for new designs. Contact onsemi representatives for alternative solutions or updated product information.