Z8S18020FSC

Overview

The Z8S18020FSC is an 8-bit microprocessor based on the Z180 core, operating at a maximum clock frequency of 20 MHz. It features a single core with an 8-bit data bus width and supports up to 1 MB of addressable memory via its expanded MMU. The device operates within a commercial temperature range of 0°C to +70°C and requires a 5V supply voltage. It is housed in an 80-pin QFP package designed for surface mount installation.

Feature Summary

• Code compatible with ZiLOG Z80 CPU while providing extended instructions and faster execution speeds.
• Includes two chain-linked DMA channels for high-speed data transfers between memory and I/O devices.
• Integrates two enhanced UARTs supporting asynchronous communication rates up to 512 Kbps with FIFO buffers.
• Offers multiple low power-down modes including Halt, Sleep, and Standby to reduce system power consumption.

Applications

• Industrial control systems requiring Z80 compatibility with enhanced performance
• Embedded applications needing integrated serial communication interfaces
• Systems utilizing direct memory access for efficient data handling

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and moisture sensitivity level prior to soldering. Check for obsolescence notices as this series may have discontinuation notifications. Ensure proper ESD handling procedures are followed during storage and assembly.

Selection Notes

Select this processor when Z80 software compatibility is required alongside enhanced peripheral integration. Consider the 80-pin QFP package for surface mount designs. Evaluate power requirements against available low-power modes. Verify that the 5V logic levels match the target system interface voltages.

Part Context

This component belongs to the Z8S180 family, which enhances the original Z180 design. It combines the Z80 instruction set with additional features like expanded addressing and improved interrupt handling. The Z8S180 series targets applications needing robust embedded processing capabilities.

Replacement Considerations

Z8S18020FEG: Extended temperature variant (-40°C to +85°C) in QFP-80 package. Z8L18020FSG: Low power version in QFP-80 package. Z8018020FSC: Original Z80180 core variant in QFP-80 package.