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Manufacturer Part #


MC100EL51 Series 2.8 GHz 5.7 V ECL Differential Clock D Flip‐Flop - SOIC-8

Mfr. Name: ON Semiconductor
Standard Pkg:
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Product Specification Section
Technical Attributes
Attributes Table
Input Voltage-Max: 4120mV
Temperature Range: -40°C to +85°C
Supply Voltage-Nom: 4.2V to 5.7V
Frequency-Max: 2.8GHz
Package Style:  SOIC-8
Mounting Method: Surface Mount
Features & Applications

The MC100EL51 is a differential clock D flip-flop with reset. The device is functionally similar to the E151 device with higher performance capabilities. With propagation delays and output transition times significantly faster than the E151 the EL51 is ideally suited for those applications which require the ultimate in AC performance.

The reset input is an asynchronous, level triggered signal. Data enters the master portion of the flip-flop when the clock is LOW and is transferred to the slave, and thus the outputs, upon a positive transition of the clock. The differential clock inputs of the EL51 allow the device to be used as a negative edge triggered flip-flop. The differential input employs clamp circuitry to maintain stability under open input (pulled down to VEE) conditions. The 100 Series contains temperature compensation.

Key Features:

  • 475 ps Propagation Delay
  • 2.8 GHz Toggle Frequency
  • ESD Protection:
    • > 1 kV Human Body Model
    • > 100 V Machine Model
  • PECL Mode Operating Range: VCC = 4.2 V to 5.7 V with VEE = 0 V
  • NECL Mode Operating Range: VCC = 0 V with VEE = −4.2 V to −5.7 V
  • Internal Input Pulldown Resistors on D, R, and CLK
  • Moisture Sensitivity Level 1
  • Flammability Rating: UL 94 V−0 @ 0.125 in, Oxygen Index: 28 to 34
  • Transistor Count = 73 devices
  • Pb−Free Packages are Available
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Factory Lead Time:
4 Weeks
Web Price
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