MC10E457FNR2G

Overview

The MC10E457FNR2G is a 5 V ECL triple differential 2:1 multiplexer in a 28-lead PLCC package. It features fully differential data paths for low skew clock multiplexing with >1.0 GHz bandwidth and 700 ps maximum propagation delay. Operating ranges include PECL (VCC = 4.2 V to 5.7 V, VEE = 0 V) and NECL (VCC = 0 V, VEE = −4.2 V to −5.7 V). The device includes internal input pulldown resistors, separate and common select inputs, and an internally generated VBB reference voltage.

Feature Summary

• Fully differential data path designed for low skew signal multiplexing
• Internal clamp structures force unused gate outputs to LOW state when inputs are open
• Internally generated VBB reference voltage available for AC coupling or single-ended switching references
• Internal 50 kΩ pulldown resistors on differential inputs

Applications

• Multiplexing low skew clock signals
• Skew sensitive signal routing
• Data path applications requiring separate selects
• Random logic applications utilizing common select

Procurement Notes

Verify the specific ordering suffix 'R2G' against current manufacturer documentation to confirm tube packaging quantities and RoHS compliance status. Confirm that the PLCC-28 FN package dimensions match the design footprint requirements. Ensure power supply connections for all VCC, VCCO, and VEE pins are externally connected to guarantee proper operation as specified in the datasheet warnings.

Selection Notes

Select this component for high-frequency applications requiring differential signal integrity and low skew. Choose between the standard 10E series or temperature-compensated 100E series based on thermal stability needs. Verify compatibility with PECL or NECL operating modes by checking the specific power supply configuration. Ensure the 28-lead PLCC package fits the available board space and assembly constraints.

Part Context

This device belongs to the MC10E/100E457 family of 5 V ECL triple differential 2:1 multiplexers. It is manufactured by onsemi and utilizes a 28-lead Plastic Leadless Chip Carrier (PLCC) package with J-leads. The part number suffix 'FN' indicates the specific PLCC package type, while 'R2G' denotes the tape and reel packaging format and lead-free/RoHS compliant construction.

Replacement Considerations

The MC100E457FNR2G serves as a direct functional substitute within the same package, offering temperature compensation characteristics not present in the standard MC10E457 variant.