Z8S18010FSC

Overview

The Z8S18010FSC is a microprocessor unit based on the Z180 core, featuring an 8-bit data bus and a maximum clock frequency of 10 MHz. It operates at 5 V with an I/O voltage of 5.0 V across a commercial temperature range of 0°C to +70°C. The device is housed in an 80-pin QFP package for surface mount installation. Key integrated resources include two asynchronous serial communication interfaces (ASCI), two programmable reload timers, and two chain-linked DMA channels. It supports expanded MMU addressing up to 1 MB and includes an on-chip oscillator.

Feature Summary

• Code compatible with ZiLOG Z80 CPU while providing extended instructions and faster execution speeds.
• Integrated dual ASCI channels supporting baud rates up to 512 Kbps with FIFO buffers to reduce overrun errors.
• Two chain-linked DMA channels enabling nonstop block transfers between memory and I/O devices.
• Multiple low-power-down modes including Halt, Sleep, and Stop to minimize energy consumption.

Applications

• Embedded systems requiring backward compatibility with legacy Z80 software.
• Industrial control applications utilizing integrated UARTs and timer resources.
• Data acquisition systems employing DMA for high-speed peripheral interfacing.

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to discontinuation status. Confirm RoHS compliance specifications against current regulatory requirements for your region. Review Product Change Notifications (PCN) and End-of-Life (EOL) documentation for supply continuity implications. Ensure handling procedures account for moisture sensitivity levels specified in the datasheet during storage and assembly.

Selection Notes

Select this component when system design requires Z80 instruction set compatibility alongside enhanced on-chip peripherals. Consider the 80-pin QFP package constraints for PCB layout and thermal management within the commercial temperature range. Evaluate power consumption profiles against available low-power modes if battery operation is required. Verify that external memory timing aligns with the processor's wait-state generation capabilities.

Part Context

This part belongs to the Z8S180 family, which enhances the original Z80180 architecture. The series offers improved performance through reduced clock cycles per instruction and additional power-saving features. It maintains full object-code compatibility with existing Z80 devices while integrating advanced memory management and serial communication interfaces into a single CMOS chip.

Replacement Considerations

Z8S18010VEG

FAQ

Does the Z8S18010FSC support direct replacement of standard Z80 processors?

Yes, it provides full object-code compatibility with the Z80 CPU, allowing it to run existing Z80 software without modification while offering extended instruction sets.

What is the function of the chain-linked DMA channels?

The two DMA channels can be configured to link together, allowing continuous data transfer operations between peripherals without CPU intervention, even when switching between channels.