Z8018216ASC

Overview

The Z8018216ASC is a smart peripheral controller IC based on the Z8S180 MPU core, operating at 16 MHz. It integrates two ESCC channels with 32-bit CRC, three 8-bit parallel I/O ports, and a 16550 compatible MIMIC interface for direct connection to PC, XT, or AT buses. The device features two DMA channels, on-chip wait state generators, two UART channels, two 16-bit timer counters, an on-chip interrupt controller, and a clock oscillator/generator. It utilizes a 100-pin QFP package.

Feature Summary

• Integrates Z8S180 MPU core with two ESCC channels supporting 32-bit CRC
• Includes 16550 compatible MIMIC interface for direct PC/XT/AT bus connectivity
• Features two DMA channels and on-chip wait state generators
• Provides three 8-bit parallel I/O ports and two 16-bit timer counters

Applications

• Modem applications including V.Fast
• Fax machines
• Voice messaging systems
• Communications applications requiring data compression and error correction

Procurement Notes

Verify the specific suffix ASC against official datasheets to confirm package type and voltage compatibility. Confirm availability status as distribution channels may list obsolete stock. Ensure design-in documentation matches the 100-pin QFP footprint and pinout definitions provided in the manufacturer's specification.

Selection Notes

Select this component when a static Z80180 core is required alongside integrated serial communication controllers and parallel I/O. Consider the 16550 MIMIC interface if legacy PC bus compatibility is necessary. Evaluate the 16 MHz operating frequency against system timing requirements and verify power supply constraints for the specific package variant.

Part Context

The Z80182 series belongs to Zilog's Intelligent Peripheral Controller (ZIP) family. These devices combine microprocessor cores with extensive peripheral logic to reduce board space and component count. The Z80182 specifically targets communications markets by integrating ESCC and MIMIC interfaces directly onto the silicon die alongside the CPU.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.