MC100LVEL33DR2G

Counter Dividers Overview

The MC100LVEL33DR2G is a 3.3 V ECL divide-by-4 divider manufactured by onsemi, functionally equivalent to the EL33 device. It operates from a single 3.3 V supply and features an asynchronous reset pin asserted on the rising edge. The device includes an internally generated VBB reference voltage available for single-ended input switching or AC-coupled input rebiasing. It supports PECL mode (VCC = 3.0 V to 3.8 V, VEE = 0 V) and NECL mode (VCC = 0 V, VEE = -3.0 V to -3.8 V). Key electrical parameters include a typical propagation delay of 630 ps and a maximum toggle frequency of 4.0 GHz at 25°C. Power supply current ranges from 33 mA to 39 mA depending on temperature.

Counter Dividers Feature Summary

• Provides integrated divide-by-4 division with differential clock inputs and differential data outputs.
• Includes an asynchronous reset mechanism to synchronize multiple devices in a system upon power-up.
• Features an internal VBB reference voltage output for use as a switching reference or AC coupling bias.
• Incorporates internal input pulldown resistors to simplify external circuit design.

Counter Dividers Applications

• Clock signal distribution networks requiring frequency division.
• High-speed digital systems utilizing PECL or NECL logic standards.
• Synchronization circuits for multi-device timing alignment.

Counter Dividers Procurement Notes

Verify that the specific ordering suffix DR2G corresponds to the SOIC-8 NB package supplied in tape and reel format containing 2500 units. Confirm compliance with RoHS directives and lead-free status. Ensure the application environment respects the specified operating temperature range of -40°C to +85°C. Validate that power supply voltages remain within the defined PECL or NECL limits to prevent exceeding maximum ratings.

Counter Dividers Selection Notes

Select this component when a divide-by-4 function is required within a 3.3 V ECL architecture. Consider the 630 ps propagation delay and 4.0 GHz maximum frequency for high-speed timing constraints. Evaluate the need for the internal VBB pin if single-ended inputs are utilized. Compare against the EL33 if legacy compatibility is required, noting the voltage supply difference. Assess thermal resistance requirements based on the chosen package style and airflow conditions.

Counter Dividers Part Context

This part belongs to the MC100LVEL series of low-voltage ECL components designed for 3.3 V operation. It serves as a modern replacement for older 5 V ECL dividers like the EL33, offering similar AC performance at lower power consumption. The series is characterized by temperature compensation and robust ESD protection, making it suitable for demanding industrial and communication applications requiring reliable high-frequency signal processing.

Counter Dividers Replacement Considerations

The MC100LVEL33DG is a tube-packaged alternative within the same functional family. Direct substitution requires verifying package compatibility between SOIC-8 NB and TSSOP-8 variants if footprint changes are permissible. Ensure that any substitute maintains the 3.3 V supply requirement and asynchronous reset functionality.