MC100E171FN

Overview

The MC100E171FN is a 5V ECL/EnECL 3-Bit 4:1 Multiplexer manufactured by onsemi. It contains three independent multiplexers with differential outputs and separate select controls for the leading 2:1 MUX pairs. The device operates in PECL mode (VCC = 4.2 V to 5.5 V, VEE = 0 V) or NECL mode (VCC = 0 V, VEE = -4.2 V to -5.5 V). Key electrical parameters include a maximum propagation delay of 725 ps from data input to output, a maximum toggle frequency of 1400 MHz, and internal input 50 kΩ pulldown resistors. It is housed in a 28-Lead PLCC package.

Feature Summary

• Features split select architecture allowing independent control of leading 2:1 MUX pairs within each 4:1 multiplexer channel.
• Provides differential true and inverted outputs suitable for high-speed signal routing applications.
• Includes internal 50 kΩ input pulldown resistors to manage floating inputs without external components.
• Offers temperature compensation characteristics inherent to the 100 Series design.

Applications

• High-speed digital signal routing in communication systems
• Data selection circuits requiring differential ECL signaling
• Clock distribution networks utilizing low skew multiplexing

Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm the specific ordering suffix matches the required packaging format, such as rail or tape and reel quantities. Ensure compliance with environmental regulations relevant to your region, noting that standard versions may differ from lead-free variants regarding RoHS status. Validate supply chain documentation against the datasheet publication number MC10E171/D.

Selection Notes

Select this component when designing systems requiring three independent 4:1 multiplexing functions with differential outputs. Consider the MC100E171FN for applications demanding low propagation delay and high toggle frequencies up to 1400 MHz. Evaluate the power supply requirements for either PECL or NECL operation modes. Compare pinout compatibility and package dimensions against existing board layouts to ensure the 28-Lead PLCC form factor fits the mechanical constraints.

Part Context

This part belongs to the MC10E/100E series of ECL logic devices produced by onsemi. The 100 Series designation indicates the inclusion of temperature compensation features compared to the standard 10 Series. These devices are designed for high-performance digital applications where speed and signal integrity are critical. The family includes various logic gates, latches, and multiplexers sharing similar interface standards and operating voltage ranges.

Replacement Considerations

Check for MC10E171FN as the non-temperature-compensated variant within the same package. Verify functional equivalence with other 3-bit 4:1 ECL multiplexers if system flexibility allows. Consult the manufacturer's obsolescence notices for potential end-of-life status updates.