MC10EP445FA

Overview

The MC10EP445FA is an integrated 8-bit differential serial to parallel data converter manufactured by onsemi. It operates within a power supply range of 3.0 V to 5.5 V and supports maximum input clock frequencies up to 3.3 GHz in CKSEL HIGH mode, or up to 5.0 Gb/s typical data rates in CKSEL LOW mode. The device features asynchronous data synchronization via the SYNC pin and includes selectable differential serial inputs (SINA/SINB) for loop-back testing. Electrical specifications include a propagation delay of 1530 ps and a typical operating current of 122 mA at 3.3 V. It is housed in a 32-lead LQFP package.

Feature Summary

• Supports dual operational modes: CKSEL HIGH for NRZ data rates up to 3.3 Gb/s and CKSEL LOW for internal clock doubling up to 5.0 Gb/s.
• Provides asynchronous data synchronization capability through the SYNC pin to adjust conversion start points.
• Includes two selectable differential serial inputs (SINA and SINB) controlled by the SINSEL pin to enable loop-back testing.
• Features dedicated VBB output pins to serve as reference voltages for single-ended input applications.

Applications

• High-speed serial-to-parallel data conversion in communication systems
• Loop-back testing configurations utilizing selectable differential inputs
• Asynchronous data synchronization in high-frequency logic circuits

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and environmental compliance. The FA suffix indicates a Lead-Free LQFP-32 package. Confirm that the required airflow conditions are met during operation, particularly when using higher voltage supplies, to ensure thermal stability and adherence to specified electrical parameters.

Selection Notes

Select this component for applications requiring high-speed ECL logic conversion with flexible clocking options. Ensure the design accommodates the specific timing requirements for setup and hold times relative to the chosen CKSEL mode. Verify that the power supply configuration matches either PECL or NECL standards, as the device supports both ranges with appropriate biasing.

Part Context

This part belongs to the MC10/100EP445 series of 3.3V/5V ECL logic converters. The 10 Series variant lacks temperature compensation, whereas the 100 Series includes it. The device is designed for integration into high-performance digital systems requiring reliable serial-to-parallel data handling at gigabit speeds.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer's application notes for potential cross-references or updated family members if availability is a constraint.

FAQ

How does the CKSEL pin affect the data rate?

When CKSEL is HIGH, the device operates at NRZ data rates up to 3.3 Gb/s. When CKSEL is LOW, it operates at twice the internal clock data rate, supporting typical rates up to 5.0 Gb/s.

What is the function of the SYNC pin?

The SYNC pin allows for asynchronous data synchronization. Holding it high for consecutive clock cycles swallows a data bit, effectively shifting the start of the conversion sequence from one output bit to the next.

Can the device be used for loop-back testing?

Yes, the device provides two selectable differential serial inputs, SINA and SINB. These can be selected via the SINSEL pin to facilitate loop-back testing capabilities.