Z8S18020VSG

Overview

The Z8S18020VSG is a microprocessor featuring the Z180 core, operating at a maximum clock frequency of 20 MHz with static logic. It utilizes an 8-bit data bus and functions on a 3.3 V supply voltage. The component is housed in a 68-pin PLCC package designed for surface mount installation. It supports an operating temperature range from 0°C to +70°C and includes two timers/counters alongside UART interfaces.

Feature Summary

• Code compatible with ZiLOG Z80 CPU while providing extended instructions
• Features two chain-linked DMA channels for high-speed data transfers
• Includes two enhanced UARTs supporting asynchronous data transfer up to 512 Kbps
• Offers multiple low power-down modes to reduce system energy consumption

Applications

• Embedded systems requiring backward compatibility with Z80 architecture
• Industrial control applications utilizing integrated I/O resources
• Data acquisition systems leveraging DMA capabilities
• Communication devices employing dual UART interfaces

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and check for End-of-Life notices prior to procurement. Ensure handling procedures account for moisture sensitivity levels specified in datasheets. Validate packaging integrity upon receipt to prevent damage to the PLCC-68 package.

Selection Notes

Select this processor when Z80 instruction set compatibility is required alongside enhanced Z180 features. Consider the 20 MHz speed and 3.3 V operation for specific performance needs. Evaluate the PLCC-68 package against board space constraints. Review timer and UART availability against application interface requirements.

Part Context

This component belongs to the Z8S180 series, which enhances the original Z80180 design. The series integrates a high-performance CPU core with system resources like DMA and ASCI. It maintains object-code compatibility with legacy Z80 devices while offering improved execution speeds and power management options for modern embedded designs.

Replacement Considerations

Public confirmed substitute part numbers: Z8S18020VSC, Z8S18020VSG1960.