Z8S18020FEG

Overview

The Z8S18020FEG is a static microprocessor based on the Z180 core, operating at a maximum clock frequency of 20 MHz. It features an 8-bit data bus and is housed in an 80-pin QFP package. The device operates on a 3.3 V supply voltage with matching I/O levels. It supports an industrial temperature range from -40°C to +85°C. Key integrated peripherals include two Enhanced UARTs, two 16-bit counter/timers, two DMA channels, and an MMU supporting up to 1 MB addressing.

Feature Summary

• Code compatible with ZiLOG Z80 CPU while offering extended instructions and faster execution speeds.
• Integrated dual DMA channels capable of chain-linking for continuous nonstop data transfer operations.
• Features three low-power down modes including Stop mode and Standby mode to reduce current consumption.
• Includes an on-chip oscillator/generator and a clock-doubler feature allowing internal speed to exceed external crystal frequency.

Applications

• Embedded systems requiring backward compatibility with legacy Z80 software.
• Industrial control applications utilizing the extended temperature range capabilities.
• Data acquisition systems leveraging the integrated DMA and serial communication interfaces.
• Battery-powered devices utilizing the multiple low-power stop and standby modes.

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS compliance and moisture sensitivity level prior to soldering. Review Product Change Notifications for any manufacturing site or material updates. Ensure ESD protection protocols are followed during handling and assembly processes.

Selection Notes

Select this variant for designs requiring 3.3 V operation within the 80-pin QFP form factor. Compare against other Z8S180 series members for differing clock speeds or package types such as PLCC-68. Evaluate power requirements against the specific low-power modes available. Ensure system memory mapping aligns with the expanded MMU addressing capabilities provided by the Z180 architecture.

Part Context

This component belongs to the Z8S180 series, which enhances the original Z80180 design. The series provides improved performance, reduced power consumption, and additional I/O resources. It maintains object-code compatibility with the standard Z80 CPU while introducing new instructions and hardware features like the enhanced ASCI and DMA controllers.

Replacement Considerations

Public confirmed substitute part numbers: Z8S18020VSG1960, Z8S18010FSG.