MC100E157FN

Overview

The MC100E157FN is a 5 V/EnECL Quad 2:1 Multiplexer in a PLCC-28 package. It contains four independent multiplexers with differential outputs controlled by individual Select (SEL) inputs. The device operates in PECL mode (VCC = 4.2 V to 5.7 V, VEE = 0 V) or NECL mode (VCC = 0 V, VEE = -4.2 V to -5.7 V). Key electrical parameters include a maximum propagation delay of 550 ps from data input and 800 ps from select input. Internal 50 kΩ pulldown resistors are integrated on inputs.

Feature Summary

• Contains four independent 2:1 multiplexers with differential ECL outputs
• Features temperature compensation for stable performance across operating ranges
• Includes internal 50 kΩ input pulldown resistors to simplify circuit design
• Provides high electrostatic discharge protection exceeding 2 kV via Human Body Model

Applications

• Random logic designs requiring independent channel selection
• High-speed signal routing in telecommunications systems
• Data distribution networks utilizing ECL logic families

Procurement Notes

Verify the specific suffix 'FN' confirms the standard PLCC-28 package configuration. Confirm that the 'MC100' prefix indicates the inclusion of temperature compensation features compared to the base 'MC10E' series. Ensure compatibility with existing power supply rails for either PECL or NECL operation modes before integration.

Selection Notes

Select this component when designing circuits requiring multiple independent 2:1 multiplexing functions within a single package. The MC100 series variant is preferred over the MC10E series if temperature compensation is required for enhanced stability. Verify that the system supports the necessary differential output termination schemes and voltage levels for proper ECL interface operation.

Part Context

This device belongs to the MC10E/100E157 family of EnECL quad multiplexers manufactured by onsemi. It is designed for high-speed digital applications where low propagation delay and independent control of multiple channels are critical requirements. The PLCC-28 package provides a compact solution for surface-mount assembly in dense electronic designs.

Replacement Considerations

The MC10E157FN serves as a direct functional equivalent without temperature compensation. Designers should verify pinout compatibility and ensure that the absence of temperature compensation in the substitute part does not impact system reliability under varying thermal conditions.