Overview
The MC100LVEL51DR2G, produced by onsemi, is a 3.3 V ECL (Emitter-Coupled Logic) differential clock D flip-flop with reset. This device is functionally equivalent to the EL51 but operates from a 3.3 V supply, making it ideal for applications requiring high AC performance at this voltage level. It features differential clock inputs, allowing it to be used as a negative edge triggered flip-flop, and includes internal input pulldown resistors for stability under open input conditions.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC (PECL Mode Power Supply) | VEE = 0 V | 3.0 | - | 3.8 | V |
| VEE (NECL Mode Power Supply) | VCC = 0 V | -3.8 | - | -3.0 | V |
| Propagation Delay (tPLH, tPHL) | - | 330 | 340 | 475 | ps |
| Maximum Toggle Frequency (fmax) | - | 2.7 | 2.8 | 2.9 | GHz |
| Setup Time (tS) | - | 150 | 0 | 150 | ps |
| Hold Time (tH) | - | 200 | 100 | 200 | ps |
| Reset Recovery (tRR) | - | 350 | 200 | 350 | ps |
| Minimum Pulse Width (tPW) | - | 400 | - | 500 | ps |
| Cycle-to-Cycle Jitter (tJITTER) | - | 6.9 | 7.0 | 7.1 | ps |
| Output Rise/Fall Times (tr, tf) | - | 120 | - | 320 | ps |
| ESD Protection | Human Body Model | - | - | > 4 kV | - |
| ESD Protection | Machine Model | - | - | > 200 V | - |
Key Features
- 475 ps Propagation Delay and 2.8 GHz Toggle Frequency for high-speed applications.
- ESD Protection: > 4 kV Human Body Model and > 200 V Machine Model.
- Internal Input Pulldown Resistors for stability under open input conditions.
- PECL and NECL mode operating ranges: VCC = 3.0 V to 3.8 V with VEE = 0 V, and VCC = 0 V with VEE = −3.0 V to −3.8 V.
- Meets or Exceeds JEDEC Spec EIA/JESD78 IC Latchup Test.
- Pb-Free, Halogen Free, and RoHS Compliant.
- Flammability Rating: UL 94 V−0 @ 0.125 in, Oxygen Index: 28 to 34.
Applications
The MC100LVEL51DR2G is suitable for high-speed digital systems that require low propagation delays and high toggle frequencies. Typical applications include:
- High-speed data transmission systems.
- Telecommunication equipment.
- High-frequency clock distribution networks.
- Advanced computing and networking hardware.
- Other high-performance digital circuits where ECL logic is required.
Q & A
- What is the operating voltage range for the MC100LVEL51DR2G in PECL mode?
The operating voltage range in PECL mode is VCC = 3.0 V to 3.8 V with VEE = 0 V.
- What is the maximum toggle frequency of the MC100LVEL51DR2G?
The maximum toggle frequency is 2.8 GHz.
- Does the MC100LVEL51DR2G have ESD protection?
Yes, it has ESD protection of > 4 kV Human Body Model and > 200 V Machine Model.
- What are the typical propagation delays for the MC100LVEL51DR2G?
The typical propagation delays are around 340 ps.
- Is the MC100LVEL51DR2G RoHS compliant?
Yes, the device is Pb-Free, Halogen Free, and RoHS Compliant.
- What are the thermal resistance values for the SOIC-8 NB package?
The thermal resistance values are 190°C/W (Junction-to-Ambient) at 0 lfpm and 130°C/W at 500 lfpm.
- What is the setup time for the MC100LVEL51DR2G?
The setup time (tS) is 150 ps.
- What is the hold time for the MC100LVEL51DR2G?
The hold time (tH) is 200 ps.
- What is the minimum pulse width for the clock input?
The minimum pulse width (tPW) for the clock input is 400 ps.
- What is the cycle-to-cycle jitter for the MC100LVEL51DR2G?
The cycle-to-cycle jitter is around 7 ps.
