Z8018220AEG

Overview

The Z8018220AEG is a static microprocessor unit (MPU) from the Zilog ZIP series, operating at 20 MHz with a 3.3V supply. It integrates a Z8S180 core, two ESCC channels, and a 16550 MIMIC interface within a 100-pin VQFP package. The device supports full duplex DMA transfers, on-chip wait state generation, and an internal clock oscillator.

Feature Summary

• Integrates a fully static Z8S180 MPU core compatible with Z80/Z180 instruction sets
• Includes dual Enhanced Serial Communications Controller (ESCC) channels with CRC capabilities
• Features a 16550 MIMIC interface for direct PC/XT/AT bus connectivity
• Provides three independent 8-bit parallel I/O ports

Applications

• Modem applications including V.Fast protocols
• Fax machine control systems
• Voice messaging equipment
• General-purpose communications controllers

Procurement Notes

Verify component authenticity against official Zilog documentation prior to integration. Confirm that the specific ordering suffix corresponds to the required voltage and package specifications. Ensure compliance with environmental regulations such as RoHS status before finalizing procurement decisions.

Selection Notes

Select this component when a static Z80-compatible processor with integrated serial communication peripherals is required. Consider the 20 MHz speed and 3.3V operation for low-power embedded designs. Verify pin compatibility if replacing older QFP variants due to package differences.

Part Context

This part belongs to the Z80182 family of Intelligent Peripheral Controllers. It combines a microprocessor with specialized communication interfaces to reduce system component count. The ZIP architecture allows for flexible internal and external application configurations.

Replacement Considerations

Z8018233ASG offers similar functionality but operates at 33 MHz with a 5V supply.