Z8018008FSC

Overview

The Z8018008FSC is an 8-bit microprocessor unit from the Z180 family, manufactured by Zilog. It operates at a clock speed of 8 MHz and utilizes a single core architecture with an 8-bit bus width. The device is housed in an 80-pin QFP package and supports surface mount mounting. It functions within a commercial temperature range of 0°C to +70°C and requires a 5.0V I/O voltage. Key integrated peripherals include two DMA channels, two UARTs, two programmable reload timers, and an MMU supporting up to 1 MB of addressing.

Feature Summary

• Provides full backward compatibility with existing Zilog Z80 CPU code while offering extended instructions and a superset of the original instruction set.
• Integrates multiple system functions on-chip, including DMA controllers, asynchronous serial communication interfaces (ASCI), and programmable reload timers to reduce external component requirements.
• Features an expanded Memory Management Unit (MMU) that maps logical 64 KB memory into a 1 MB physical addressing range using a common area-banked area scheme.

Applications

• Embedded systems requiring reduced component count through integrated I/O and memory management
• Industrial control applications utilizing the Z80 instruction set compatibility
• Systems requiring direct memory access for high-speed data transfers between memory and I/O devices

Procurement Notes

Verify the specific ordering suffix 'FSC' against the manufacturer's current datasheet to confirm lead-free environmental compliance and package type accuracy. Confirm availability status as this part number may be subject to obsolescence notices or end-of-life declarations. Ensure design-in documentation references the correct PS014005-0817 specification sheet for pinout and electrical characteristics.

Selection Notes

Select this component when a Z80-compatible processor with integrated peripherals is required for 8-bit embedded designs. Consider the 80-pin QFP package constraints and the 0°C to +70°C operating temperature range. Evaluate the need for the specific 8 MHz clock speed and the integrated MMU capabilities for memory expansion beyond standard 64 KB limits.

Part Context

This microprocessor belongs to the Z80180 series, which extends the functionality of the classic Z80 CPU by adding on-chip resources such as DMA, timers, and serial ports. The Z180 core maintains object-code compatibility with the Z80 while providing enhanced performance through optimized microcode execution for many instructions.

Replacement Considerations

Consult the manufacturer's official cross-reference documentation for verified substitute part numbers. Verify pin compatibility and software compatibility before replacing obsolete components with newer revisions or alternative packages within the same family.