Z8S18020VSC1960TR

Overview

The Z8S18020VSC1960TR 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 width and supports a single core architecture. The device operates within a voltage range of 3.3 V to 5 V and functions in temperatures from 0°C to +70°C. It is housed in an 80-pin QFP package with surface mount installation. Key integrated resources include two DMA channels, two ASCI UARTs, two programmable reload timers, and a CSI/O channel.

Feature Summary

• Code compatible with ZiLOG Z80 CPU while providing extended instructions and faster execution speeds.
• Features two chain-linked DMA channels for high-speed memory and I/O transfers up to 1 MB addressing.
• Includes two enhanced asynchronous serial communication interfaces (ASCI) with FIFO buffers and baud rate generators.
• Offers multiple low-power-down modes including Halt, Sleep, and Stop to reduce power consumption.

Applications

• Industrial control systems requiring Z80 compatibility with enhanced performance
• Embedded applications needing integrated serial communication and timer resources
• Systems utilizing direct memory access for high-speed data transfer operations

Procurement Notes

Verify the specific ordering suffix against official datasheets to confirm package type and temperature range. Confirm availability status as distribution channels may list obsolete or end-of-life inventory. Ensure moisture sensitivity level handling procedures are followed during assembly. Cross-reference pinouts for the 80-QFP package to validate board layout compatibility.

Selection Notes

Select this component when Z80 software compatibility is required alongside enhanced peripheral integration. Consider the 20 MHz speed and 3.3 V/5 V operation for mixed-voltage systems. Evaluate the need for on-chip DMA and dual UARTs to reduce external component count. Verify that the 80-pin QFP package fits the mechanical constraints of the target design.

Part Context

This part belongs to the Z8S180 series, which enhances the original Z80180 design with lower power consumption and EMI noise reduction. The Z180 core combines a high-performance CPU with system resources like MMU, DMA, and serial interfaces. It serves as a bridge between legacy Z80 codebases and modern embedded requirements.

Replacement Considerations

Check for Z8L180 variants for low-power applications. Verify Z80180 predecessors for backward compatibility if upgrading existing designs. Consult manufacturer documentation for any newer generations within the Z8 family.