Z8S18020FEG1960

Overview

The Z8S18020FEG1960 is an 8-bit microprocessor based on the Z180 core, operating at a maximum clock frequency of 20 MHz. It features code compatibility with the Z80 CPU and includes two chain-linked DMA channels, two enhanced UARTs supporting up to 512 Kbps, and two 16-bit counter/timers. The device supports expanded MMU addressing up to 1 MB and operates within a temperature range of 0°C to +70°C.

Feature Summary

• Provides full backward compatibility with existing ZiLOG Z80 devices while offering extended instructions and faster execution speeds.
• Integrates two chain-linked DMA channels for nonstop data transfer between memory and I/O peripherals.
• Includes two Enhanced UARTs with FIFO buffers and ESCC-like Baud Rate Generators for asynchronous data transfer.
• Offers multiple low-power-down modes including Stop, Sleep, and Power-Down to reduce current consumption.

Applications

• Industrial control systems requiring robust interrupt handling and serial communication
• Embedded applications needing direct memory access for high-speed data throughput
• Legacy system upgrades maintaining Z80 software compatibility

Procurement Notes

Verify the specific package type and voltage requirements against the design schematic. Confirm that the 20 MHz static operation aligns with system timing constraints. Ensure environmental conditions remain within the specified commercial temperature range during deployment.

Selection Notes

Select this component when Z80 instruction set compatibility is required alongside integrated peripheral resources. Consider the 80-pin QFP package for board space efficiency. Evaluate power consumption needs against the available low-power modes if battery operation is a factor.

Part Context

This part belongs to the Z8S180 series, which enhances the original Z80180 architecture. It combines a high-performance CPU core with on-chip system resources such as DMA, UARTs, and timers. The series is designed for applications demanding both processing power and peripheral integration in a single chip.

Replacement Considerations

Check for Z8L180 variants for low-power requirements or different package options like PLCC-68. Verify pinout compatibility with existing PCB layouts before substituting.