Supply original MC100EL31DG, Logic - Flip Flops, by ON Semiconductor

5 V ECL D Flip‐Flop With Set and Reset
The MC10EL/100EL31 is a D flip-flop with set and reset.
The device is functionally equivalent to the E131 device with higher performance capabilities. With propagation delays and output transition times significantly faster than the E131, the EL31 is ideally suited for those applications which require the ultimate in AC performance. Both set and reset inputs are asynchronous, level triggered signals. Data enters the master portion of the flip-flop when clock is LOW and is transferred to the slave, and thus the outputs, upon a positive transition of the clock.
The 100 Series contains temperature compensation.
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, CLK, S, and R
• Meets or Exceeds JEDEC Spec EIA/JESD78 IC Latchup Test
• Moisture Sensitivity Level 1 For Additional Information, see Application Note AND8003/D
• Flammability Rating: UL 94 V−0 @ 0.125 in, Oxygen Index: 28 to 34
• Metastability 125 ps (see Application Note AN1504)
• Transistor Count = 79 devices
• Pb−Free Packages are Available