SY100E445JZ

Specialized Overview

The SY100E445JZ is a 4-bit serial-to-parallel converter manufactured by Microchip Technology, housed in a 28-pin PLCC package. It supports NRZ data rates up to 2.5 Gb/s and operates within an extended VEE range of -4.2V to -5.5V. The device features differential clock and serial inputs, asynchronous data synchronization via the SYNC pin, and selectable MODE input for 4-bit or 8-bit conversion expansion. Internal ÷4 and ÷8 clock dividers are provided, with propagation delays ranging from 800 ps to 2100 ps depending on the output path.

Specialized Feature Summary

• Integrated divide-by-4 and divide-by-8 clock outputs for system synchronization
• Dual selectable differential serial inputs enabling loopback testing capabilities
• Asynchronous SYNC input allows shifting of the conversion start bit position
• MODE input selects between standard 4-bit operation and cascaded 8-bit expansion

Specialized Applications

• High-speed serial-to-parallel demultiplexing for NRZ data streams
• Loopback testing architectures when paired with parallel-to-serial converters
• Cascaded configurations for 1:8 demultiplexing functions

Specialized Procurement Notes

Verify component authenticity through authorized channels as this part may be subject to obsolescence notices. Confirm that the specific JZ suffix corresponds to the lead-free (Matte-Sn) variant required for your assembly process. Check current availability status as supply constraints may apply to legacy logic families.

Specialized Selection Notes

Select the SY100E445JZ for applications requiring high-speed serial data reception with integrated clock division. Ensure the design accommodates the -4.2V to -5.5V VEE supply range typical of ECL logic families. Consider the propagation delay limits if cascading multiple units for wider data paths.

Specialized Part Context

This component belongs to the SY10/100E series of high-speed ECL logic devices originally developed by Micrel, now managed by Microchip Technology. The SY100E variant specifically denotes the extended voltage range version compared to the standard SY10E counterpart. Both share identical functional pinouts and logical operations.

Specialized Replacement Considerations

The SY10E445JZ is a fully compatible alternative offering identical functionality with standard ECL voltage specifications instead of the extended range.