MC10EP57DT

Overview

The MC10EP57DT is a fully differential 4:1 multiplexer from onsemi, designed for high-speed ECL and PECL applications. It operates with a typical propagation delay of 375 ps and supports toggle frequencies exceeding 2 GHz. The device accommodates dual power supply configurations: PECL mode utilizes VCC between 3.0 V and 5.5 V with VEE at 0 V, while NECL mode employs VCC at 0 V and VEE ranging from -3.0 V to -5.5 V. Housed in a 20-pin TSSOP package (DT suffix), it features internal input pull-down resistors and provides multiple VBB reference outputs for AC-coupled or single-ended interface requirements.

Feature Summary

• Fully differential architecture ensures low skew performance suitable for precise clock distribution networks.
• Configurable as a 4:1 multiplexer or a 2:1 multiplexer by leaving the SEL1 input floating via an internal pull-down resistor.
• Includes dedicated VBB output pins that generate internal reference voltages for biasing AC-coupled inputs or unused differential pairs.
• Integrated input protection mechanisms ensure the Q output defaults to a low state when inputs are open or connected to VEE.

Applications

• Clock distribution systems requiring minimal signal skew
• High-speed data routing in telecommunications infrastructure
• Signal selection in complex digital processing circuits

Procurement Notes

Verify the specific ordering suffix 'DT' corresponds to the 20-lead Thin Shrink Small Outline Package (TSSOP) configuration. Confirm compliance with RoHS standards and lead-free manufacturing requirements during procurement. Ensure the selected variant matches the required operating temperature range and voltage specifications for the target application environment.

Selection Notes

Select this component when low skew and high-frequency operation are critical for system stability. The flexible power supply options allow compatibility with both standard PECL and NECL logic families. Utilize the VBB outputs to simplify interface design for single-ended signals or AC-coupled stages without requiring external biasing networks.

Part Context

This device belongs to the MC10EP series of high-performance ECL/PECL logic components. It serves as a functional alternative to similar multiplexers like the Micrel SY100EP57V, offering pin-compatible integration for existing designs. The part is engineered to meet the rigorous timing and noise immunity demands of modern high-speed digital communication systems.

Replacement Considerations

The Micrel SY100EP57V is documented as a pin-for-pin plug-in replacement for the MC10EP57DT. Verify electrical parameter alignment before substitution.