MC100EP33D

Counter Dividers Overview

The MC100EP33D is a divide-by-4 ECL divider manufactured by onsemi, housed in an SOIC-8 NB package. It operates within a power supply range of -5.5 V to -3.0 V (NECL mode) or 3.0 V to 5.5 V (PECL mode). The device features a typical propagation delay of 320 ps and supports maximum frequencies exceeding 4 GHz. It includes an asynchronous reset pin for system synchronization and an internal VBB reference voltage output. The component contains temperature compensation circuitry characteristic of the 100 Series.

Counter Dividers Feature Summary

• Provides a divide-by-4 function using differential clock inputs with dedicated Q and Q outputs.
• Includes an internally generated VBB reference voltage pin for single-ended input biasing or AC coupling rebiasing.
• Features an asynchronous reset pin that asserts on the rising edge to synchronize multiple devices in a system.
• Incorporates safety clamps on inputs and open-input default states where the Q output defaults to LOW.

Counter Dividers Applications

• High-speed digital frequency division circuits
• ECL-based clock distribution networks
• Synchronization of multiple divider stages in complex logic systems

Counter Dividers Procurement Notes

Verify the specific ordering suffix to confirm the package type, as the base model number corresponds to the SOIC-8 NB variant. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary. Ensure the design environment supports the required PECL or NECL voltage levels and termination schemes specified in the datasheet.

Counter Dividers Selection Notes

Select this component when a divide-by-4 ratio is required for high-frequency ECL signals. Consider the SOIC-8 NB package for standard surface-mount assembly. Evaluate the need for the VBB pin if single-ended inputs are utilized. Verify thermal management requirements based on the junction-to-ambient resistance values provided for the specific operating conditions.

Counter Dividers Part Context

This part belongs to the MC10/100EP33 family of integrated dividers from onsemi. The 100 Series designation indicates the inclusion of temperature compensation for stable performance across varying environmental conditions. It shares functional similarities with other ECL logic devices but is specifically optimized for frequency division applications requiring high-speed operation.

Counter Dividers Replacement Considerations

MC10EP33DG

Counter Dividers FAQ

How does the VBB pin function?

The VBB pin provides an internally generated voltage reference. It can be used to bias unused differential inputs for single-ended applications or to rebias AC-coupled inputs. When used, it must be decoupled via a 0.01 µF capacitor.

What happens to the output when inputs are left open?

When inputs are left open or at VEE, the Q output will default to a LOW state due to the internal pull-down resistors and safety clamp design.