Z8523016PSG

Specialized Overview

The Z8523016PSG is an Enhanced Serial Communications Controller (ESCC) manufactured by Zilog. It operates at a clock frequency of 16 MHz and utilizes a 44-pin PLCC package. The device supports dual serial channels with independent transmit and receive capabilities, including FIFO buffers for data handling. It features a parallel interface compatible with standard microprocessor buses, supporting both interrupt-driven and DMA data transfer modes. The component functions as a versatile serial communication controller suitable for various asynchronous and synchronous protocols.

Specialized Feature Summary

• Dual-channel architecture supporting independent serial data transmission and reception
• Integrated FIFO buffers to manage data flow and reduce CPU overhead
• Supports multiple communication protocols including SDLC, HDLC, and asynchronous modes
• Programmable baud rate generator and digital phase-locked loop for clock synchronization

Specialized Applications

• Serial communication interfaces in embedded systems
• Data acquisition systems requiring high-speed serial data transfer
• Industrial control networks utilizing SDLC or HDLC protocols
• Modem control applications with hardware flow management

Specialized Procurement Notes

Verify the specific suffix 'PSG' against official Zilog documentation to confirm package type and temperature range. Confirm availability status as this component may be discontinued or subject to limited supply. Ensure compatibility with existing system bus timing requirements before procurement.

Specialized Selection Notes

Select this component when a dual-channel ESCC with 16 MHz operation is required. Verify that the 44-pin PLCC package fits the PCB layout constraints. Ensure the system voltage levels match the device specifications. Consider the availability of replacement parts if long-term production support is needed.

Specialized Part Context

This part belongs to the Z85230 family of Enhanced Serial Communications Controllers. It shares functional similarities with the Z80230 but differs in bus interface characteristics. The Z85230 series provides enhanced features over earlier SCC models, including improved FIFO handling and additional control registers for complex protocol implementations.

Specialized Replacement Considerations

Check for direct pin-compatible replacements within the Z85230 family with different speed grades. Verify if the Z80230 variant can be used if the bus interface differences are accommodated in software. Consult Zilog for any updated components replacing the Z85230 series.