MC100EL14DW

Clock Buffers, Drivers Overview

The MC100EL14DW is a low skew 1:5 clock distribution chip from the onsemi 100EL series, designed for high-speed clock routing. It operates in PECL mode with VCC between 4.2 V and 5.7 V (VEE = 0 V) or NECL mode with VEE between -4.2 V and -5.7 V (VCC = 0 V). The device features a maximum toggle frequency of 1 GHz, output-to-output skew of 50 ps, and propagation delay ranging from 470 ps to 830 ps depending on the transition. It includes multiplexed inputs for system and scan clocks, synchronous enable/disable functionality, and an internally generated VBB reference voltage.

Clock Buffers, Drivers Feature Summary

• Low skew performance with 50 ps output-to-output skew and 200 ps part-to-part skew.
• Multiplexed clock input allowing selection between differential system clock (CLK) and scan clock (SCLK) via the SEL pin.
• Synchronous enable/disable control that prevents runt clock pulses during state transitions.
• Internal pull-down resistors on all inputs and pull-up resistors on inverted inputs.

Clock Buffers, Drivers Applications

• High-speed clock distribution networks requiring minimal skew.
• Systems utilizing multiplexed clock sources for normal operation and test/scan modes.
• PECL and NECL logic interface circuits operating at frequencies up to 1 GHz.

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix to confirm package type and lead-free status. The DW suffix indicates a SOIC-20L package. Standard packaging is available in rails of 38 units, while tape and reel options exist for the DWR2 variant. Confirm moisture sensitivity level requirements, as Pb-free versions typically carry Level 3 rating compared to Level 1 for standard versions.

Clock Buffers, Drivers Selection Notes

Select this component when low skew is critical for clock distribution integrity. Ensure the power supply configuration matches either PECL (VCC=5V, VEE=0V) or NECL (VCC=0V, VEE=-5V) requirements. Verify that the input swing meets the minimum 150 mVpp specification for guaranteed AC parameters. Consider the synchronous enable feature if runt pulse avoidance is necessary for downstream logic stability.

Clock Buffers, Drivers Part Context

The MC100EL14 belongs to the onsemi 100EL series, which incorporates temperature compensation for stable ECL operation. It is part of the ECLinPS family line, designed for high-performance digital systems. The device integrates 303 transistors and provides five differential outputs derived from two selectable differential inputs.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Consult the manufacturer's documentation for cross-reference information or compatible devices within the same logic family.