SY10E445JZ

Specialized Overview

The SY10E445JZ is a 4-bit serial-to-parallel data converter manufactured by Microchip Technology. It supports NRZ data rates up to 2.5 Gb/s and operates with 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 8-bit cascading. It includes on-chip ÷4 and ÷8 clock dividers, internal 75kΩ pull-down resistors, and a VBB reference voltage for single-ended use. The component is housed in a 28-pin PLCC package.

Specialized Feature Summary

• Integrated divide-by-4 and divide-by-8 clock outputs for system synchronization
• Dual selectable serial inputs enabling loopback testing capabilities
• Asynchronous SYNC input for shifting conversion start bits
• MODE input allows expansion to 8-bit conversion using two devices

Specialized Applications

• High-speed serial-to-parallel data conversion
• Cascaded 1:8 demultiplexer architectures
• Loopback testing with parallel-to-serial converters

Specialized Procurement Notes

Verify the specific ordering suffix 'JZ' indicates a Pb-Free package with Matte-Sn finish and a bar-line indicator. Confirm that the commercial operating temperature range meets the design requirements. Check current availability as this component may be subject to lifecycle changes or limited supply status.

Specialized Selection Notes

Select the SY10E445JZ when a 4-bit serial-to-parallel conversion function is required at speeds up to 2.5 Gb/s. Ensure the design utilizes differential signaling for clock rates above 500 MHz. Consider the 28-pin PLCC package constraints and verify compatibility with the -4.2V to -5.5V power supply range.

Specialized Part Context

The SY10E445 belongs to the Micrel (now Microchip) 10/100E series of high-speed ECL-compatible logic devices. It is fully compatible with the Motorola MC10E/100E445. The JZ suffix specifically denotes the lead-free variant within the standard commercial grade offering.

Specialized Replacement Considerations

The device is fully compatible with the Motorola MC10E445. Verify pinout and electrical specifications match before substitution.

Specialized FAQ

How does the SYNC input affect the conversion sequence?

Asserting the SYNC input forces the internal clock dividers to swallow a clock pulse, effectively shifting the start bit for conversion from Qn to Qn-1 by one bit.

What is the maximum data rate for the SY10E445JZ?

The device is designed to operate for NRZ data rates of up to 2.5 Gb/s.

Can the SY10E445JZ be used for 8-bit conversion?

Yes, by driving the MODE input HIGH, the device can be cascaded with another E445 to form an 8-bit conversion scheme.