MC100E157FNR2G

Overview

The MC100E157FNR2G is a 5V ECL Quad 2:1 Multiplexer in a 28-lead PLCC 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) and 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 to output and 800 ps from select input to output. It features internal 50 kΩ input pulldown resistors and meets JEDEC latchup standards.

Feature Summary

• Contains four independent 2:1 multiplexers with differential outputs for random logic designs
• Includes temperature compensation within the 100 Series architecture
• Features internal 50 kΩ input pulldown resistors to improve circuit stability
• Provides robust ESD protection exceeding 2 kV Human Body Model and 200 V Machine Model

Applications

• High-speed random logic signal routing
• PECL and NECL clock distribution systems
• Differential data path selection in telecommunications equipment

Procurement Notes

Verify component authenticity through authorized onsemi distributors or direct manufacturer channels. Confirm the Pb-free status indicated by the 'G' suffix and ensure the PLCC-28 package matches the required footprint. Check for current RoHS compliance documentation and moisture sensitivity level ratings prior to assembly to prevent soldering defects during surface mount processes.

Selection Notes

Select this component when designing circuits requiring multiple independent 2:1 multiplexing functions within a single integrated circuit. The MC100E157 is suitable for applications demanding low propagation delays and high toggle frequencies up to 1100 MHz. Ensure the design supports the specific voltage requirements for either PECL or NECL operation modes as defined in the datasheet specifications.

Part Context

This part belongs to the MC10E/100E157 family of 5V ECL Quad 2:1 Multiplexers manufactured by onsemi. The 100 Series variant specifically incorporates temperature compensation features not present in the standard 10 Series. It is designed for high-performance digital systems utilizing ECL logic families, offering differential outputs to minimize noise susceptibility in high-speed environments.

Replacement Considerations

The MC10E157FNR2G serves as a functional equivalent to the MC100E157FNR2G, though it lacks the temperature compensation found in the 100 Series. Designers should verify if thermal stability requirements necessitate the 100 Series over the standard 10 Series version.