MC100LVEL33MNR4G

Counter Dividers Overview

The MC100LVEL33MNR4G is a 3.3 V ECL divide-by-4 divider manufactured by onsemi, functionally equivalent to the EL33. It operates within a supply voltage range of 3.0 V to 3.8 V for PECL mode and -3.0 V to -3.8 V for NECL mode. The device features asynchronous reset functionality and an internal VBB reference voltage pin. Key electrical parameters include a typical propagation delay of 630 ps and a maximum toggle frequency of 4.0 GHz. It provides differential data outputs and supports single-ended input configurations via internal pulldown resistors.

Counter Dividers Feature Summary

• Asynchronous reset capability allows synchronization of multiple dividers in a system upon power-up or during operation.
• Integrated VBB pin generates an internal reference voltage suitable for biasing AC-coupled inputs or unused differential pairs.
• Temperature-compensated design ensures stable performance across the specified operating temperature range.
• High electrostatic discharge protection exceeds 4 kV human body model standards.

Counter Dividers Applications

• Clock signal division in high-speed digital systems
• Frequency synthesis circuits requiring precise phase relationships
• Data acquisition systems utilizing ECL logic families

Counter Dividers Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the MNR4G designation indicates a tape and reel configuration distinct from tube-packaged variants like DG. Confirm that the component meets RoHS compliance requirements for your manufacturing process. Ensure that the datasheet revision aligns with your design specifications, particularly regarding thermal resistance values and moisture sensitivity levels for surface mount assembly.

Counter Dividers Selection Notes

Select this component when a divide-by-4 function is required within a 3.3 V ECL environment. Consider the asynchronous reset feature if system synchronization is necessary. Evaluate the 4.0 GHz maximum frequency against your clock source capabilities. Verify compatibility with PECL or NECL signaling standards based on your power supply architecture and termination requirements.

Counter Dividers Part Context

This device belongs to the MC100LVEL series, which offers low-voltage ECL performance at 3.3 V. It serves as a modern replacement for legacy 5 V ECL counters while maintaining functional compatibility with existing ECL logic families. The series emphasizes high-speed operation and robust noise immunity through differential signaling techniques.

Counter Dividers Replacement Considerations

The MC100EL33 is functionally equivalent but operates at different voltage levels. Direct substitution requires verifying voltage compatibility and interface matching between the legacy part and the LVEL variant.

Counter Dividers FAQ

How should the VBB pin be handled if single-ended inputs are not used?

If the VBB pin is not utilized for biasing AC-coupled inputs or unused differential pairs, it should be left open circuit.

What is the behavior of the flip-flops upon initial power-up?

Upon power-up, the internal flip-flops attain a random state; the asynchronous reset pin must be asserted to synchronize the device output.