Z8523316ASG

Specialized Overview

The Z8523316ASG is a single-channel Enhanced Mono Serial Communication Controller (EMSCC) from the Zilog SCC family. It operates at clock frequencies of 10 MHz and 16 MHz with a supply voltage range of 4.5 V to 5.5 V. The device features a 4-byte transmit FIFO and an 8-byte receive FIFO to reduce CPU overhead. It supports full-duplex data communications, SDLC packet handling, and software-generated interrupt acknowledge signals. The component is housed in a 44-pin PLCC package.

Specialized Feature Summary

• Integrated 4-byte transmit and 8-byte receive FIFOs for improved data handling
• Automatic SDLC flag transmission and frame error management
• Simplified CPU hardware interface with reduced external logic requirements
• Software generation of interrupt acknowledge signal

Specialized Applications

• Full-duplex serial data communication systems
• SDLC protocol implementation
• Microprocessor-based embedded controllers

Specialized Procurement Notes

Verify the specific suffix 'ASG' against the manufacturer's official ordering information to confirm temperature grade and package variant. Confirm current availability status as this component may be subject to discontinuation or lifecycle changes. Ensure compatibility with existing system voltage levels and timing requirements before procurement.

Specialized Selection Notes

Select this controller when a single-channel solution compatible with the Z85230 ESCC architecture is required. Consider the 16 MHz speed option if higher throughput is needed compared to the 10 MHz variant. Verify that the 44-pin PLCC package fits the target PCB layout constraints.

Specialized Part Context

This component belongs to the Z85233 EMSCC series, which serves as a single-channel version of the Z85230 ESCC. It utilizes Zilog's Superintegration Technology to offer improvements over the original SCC family, specifically targeting reduced CPU overhead and simplified interface logic for modern microprocessor families.

Specialized Replacement Considerations

The Z85230 ESCC is the dual-channel counterpart within the same family. For direct pin-compatible replacements, verify specific suffixes such as 'VSC' or 'VEG' for different temperature ranges or RoHS compliance, ensuring the substitute matches the required clock speed and package type.