MC10E457FNR2

Overview

The MC10E457FNR2 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 separate and common select inputs. 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). Maximum propagation delay is 700 ps, with a maximum toggle frequency of 1.1 GHz. Internal input clamp structures force unused gate outputs LOW when both inputs fall 2.5 V below VCC.

Feature Summary

• Fully differential data path designed for low skew clock or skew-sensitive signal multiplexing
• Internal input clamp structures ensure unused gates default to a LOW state if inputs are open
• Provides both separate and common select inputs for flexible data path and random logic applications
• Includes internally generated VBB reference voltage pins to ease AC coupling of input signals

Applications

• Multiplexing low skew clock signals
• Data path switching in high-speed systems
• Random logic applications requiring differential signaling

Procurement Notes

Verify the specific suffix 'R2' indicates tape and reel packaging containing 500 units per tube as documented in the ordering information. Confirm RoHS compliance status for the FNR2 variant against current manufacturer environmental declarations. Ensure power supply connections for all VCC, VCCO, and VEE pins are externally connected to guarantee proper operation.

Selection Notes

Select this component for applications requiring differential 2:1 multiplexing with high-frequency performance up to 1.1 GHz. Choose between MC10E457 and MC100E457 variants based on temperature compensation requirements, as the 100 Series includes internal temperature compensation. Verify compatibility with PECL or NECL operating ranges depending on the system power supply configuration.

Part Context

This part belongs to the MC10E/100E series of 5 V ECL logic devices manufactured by onsemi. It is functionally equivalent to the MC100E457 but lacks the temperature compensation found in the 100 Series. The device is housed in a 28-lead Plastic Leadless Chip Carrier (PLCC) package, designated by the FN suffix, suitable for surface mount installation.

Replacement Considerations

MC100E457FNR2 is the temperature-compensated equivalent within the same family.