MC100EP57DTR2G

Overview

The MC100EP57DTR2G is a fully differential 4:1 multiplexer from the onsemi 100EP series, designed for high-speed ECL applications. It operates in PECL mode with VCC ranging from 3.0 V to 5.5 V (VEE = 0 V) and NECL mode with VEE ranging from -3.0 V to -5.5 V (VCC = 0 V). The device features typical propagation delays of 375 ps and supports maximum frequencies exceeding 2 GHz. It includes internal input pulldown resistors, safety clamps, and open-input default states where the Q output defaults LOW. The component is housed in a TSSOP-20 package.

Feature Summary

• Fully differential architecture suitable for low skew applications such as clock distribution
• Configurable as either a 4:1 or 2:1 multiplexer by leaving the SEL1 line open
• Includes multiple VBB outputs for single-ended input conditions and AC coupled input rebiasing
• Temperature compensated operation within the 100 Series logic family

Applications

• Clock distribution systems requiring low skew performance
• High-speed data routing in ECL-based digital circuits
• Signal selection in differential communication interfaces

Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the MC100EP57 is available in both TSSOP-20 and QFN-20 configurations. Confirm RoHS compliance and lead-free status during procurement. Check current availability status, as some variants within this product line may be discontinued or not recommended for new designs. Ensure proper handling procedures are followed due to the sensitivity of ECL components.

Selection Notes

Select the MC100EP57DTR2G when a fully differential 4:1 multiplexer with high-speed performance is required. This part is appropriate for designs needing operation in both PECL and NECL voltage ranges. Consider the TSSOP-20 package for standard surface-mount assembly. Evaluate the need for temperature compensation, which is provided by the 100 Series, to ensure stable performance across varying environmental conditions.

Part Context

This component belongs to the onsemi MC10/100EP57 family of ECL multiplexers. The 100 Series designation indicates enhanced features such as temperature compensation compared to the standard 10 Series. The device is part of onsemi's broader portfolio of high-speed logic ICs designed for demanding telecommunications and computing applications requiring precise signal timing and routing.

Replacement Considerations

MC10EP57DTG

FAQ

How does the device function as a 2:1 multiplexer?

By leaving the SEL1 line open, which pulls it LOW via internal input pulldown resistors, the device operates as a differential 2:1 multiplexer where SEL0 selects between D0 and D1.

What is the purpose of the VBB pins?

The VBB pins provide an internally generated reference voltage used for single-ended input conditions to connect unused differential inputs, or to rebias AC coupled inputs. They must be decoupled with a 0.01 μF capacitor if used.