MC10EP51D

Flip Flops Overview

The MC10EP51D is a single D-type flip-flop from the onsemi 10EP series, designed for high-speed ECL applications. It features differential clock inputs and an asynchronous reset function. The device supports PECL operation with VCC ranging from 3.0 V to 5.5 V (VEE = 0 V) and NECL operation with VEE from -3.0 V to -5.5 V (VCC = 0 V). Key electrical parameters include a maximum frequency exceeding 4 GHz, a typical propagation delay of 350 ps, and a quiescent current of approximately 45 mA at 25°C under standard conditions. It is housed in an 8-SOIC package.

Flip Flops Feature Summary

• Maximum operating frequency greater than 4 GHz
• Asynchronous level-triggered reset input
• Differential clock inputs with safety clamp circuitry
• Supports both PECL (3.0 V–5.5 V) and NECL (-3.0 V to -5.5 V) modes
• Input clamping ensures stable output when inputs are open or pulled to VEE

Flip Flops Applications

• High-speed data acquisition systems
• Clock distribution networks requiring differential signaling
• Telecommunications equipment utilizing ECL logic families

Flip Flops Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and shipping configuration. The base part number MC10EP51 corresponds to multiple physical packages including SOIC-8 (e.g., MC10EP51DG), TSSOP-8 (e.g., MC10EP51DTG), and DFN8. Ensure the selected variant matches the required thermal and mechanical constraints for the target application.

Flip Flops Selection Notes

Select this component when a single-bit storage element with differential clocking is required in high-frequency circuits. The 10EP series offers improved noise margins compared to older MECL 10K designs. Designers must account for the ~45 mA quiescent current per device and ensure proper termination of the 50 Ω output drivers to maintain signal integrity at frequencies above 4 GHz.

Flip Flops Part Context

The MC10EP51 is part of the 10EP family, which provides enhanced performance over legacy devices such as the EL51/LVEL51. It serves as a functional equivalent to these earlier parts while offering higher speed capabilities. The 'D' suffix specifically denotes the 8-lead Small Outline Integrated Circuit (SOIC) package variant within the broader product line.

Flip Flops Replacement Considerations

The datasheet identifies the EL51 and LVEL51 as functionally equivalent devices. For pin-compatible alternatives within the same manufacturer portfolio, consider the MC10EP51DTG (TSSOP-8) or MC10EP51MNR4G (DFN8), provided the package footprint allows for substitution.