Z8S18010PEG

Overview

The Z8S18010PEG is a microprocessor from the Zilog Z8S180 series, featuring a Z180 core and an 8-bit data bus. It operates at a maximum clock frequency of 10 MHz with a 5V supply voltage. The device is housed in a 64-pin DIP package and supports an operating temperature range of 0°C to +70°C. Key integrated peripherals include two asynchronous serial communication interfaces (ASCI), two 16-bit programmable reload timers, two chain-linked DMA channels, and a clocked serial I/O port. It also incorporates an on-chip oscillator, expanded MMU addressing up to 1 MB, and three interrupt controllers.

Feature Summary

• Code compatible with ZiLOG Z80 CPU while providing extended instructions and faster execution speeds.
• Features two chain-linked DMA channels for nonstop high-speed data transfers between memory and I/O devices.
• Includes two enhanced UARTs with flexible baud rate generators supporting asynchronous data transfer rates up to 512 Kbps.
• Offers multiple low power-down modes including Stop Mode and Sleep Mode to significantly reduce current consumption.

Applications

• Industrial control systems requiring robust serial communication and direct memory access capabilities.
• Embedded applications utilizing legacy Z80 software codebases that require extended instruction sets.
• Data acquisition systems needing precise timing via programmable reload timers and efficient peripheral management.

Procurement Notes

Verify the specific ordering suffix 'PEG' against official Zilog documentation to confirm pinout compatibility and package type. Confirm availability status as distribution channels may list obsolete or end-of-life inventory. Ensure environmental compliance requirements match the specific manufacturing batch date codes available from authorized suppliers.

Selection Notes

Select this component when system design requires backward compatibility with existing Z80 assembly code alongside enhanced performance features. Consider the 64-pin DIP package if through-hole mounting is necessary for the target hardware platform. Evaluate the 10 MHz speed requirement against higher-frequency variants if processing throughput is critical for the application timeline.

Part Context

This part belongs to the Z8S180 family, which enhances the original Z80180 design by adding EMI noise reduction and improved power-saving modes. The Z180 core architecture provides object-code compatibility with the Z80 while introducing new instructions such as 8-bit multiplication. This family bridges legacy microprocessor ecosystems with modern embedded system requirements for integrated peripherals.

Replacement Considerations

Consult official Zilog substitution guides for verified equivalents. Generic Z80 replacements may lack the integrated DMA and UART features. Verify pin-to-pin compatibility before swapping to ensure interface signals align correctly with the existing circuit board layout.