Z8S18020FSC1960

Overview

The Z8S18020FSC1960 is a microprocessor IC based on the Z180 core, operating at a maximum clock frequency of 20 MHz. It features an 8-bit data bus width and supports up to 1 MB of addressable memory via its expanded MMU. The device operates within a temperature range of 0°C to +70°C and utilizes an 80-pin QFP package. Key integrated peripherals include two DMA channels, two enhanced UARTs, two programmable reload timers, and a clocked serial I/O port.

Feature Summary

• Code compatible with ZiLOG Z80 CPU while offering extended instructions and faster execution speeds.
• Features two chain-linked DMA channels for high-speed transfers between memory and I/O devices.
• Includes two enhanced UARTs supporting asynchronous data transfer rates up to 512 Kbps with FIFO buffers.
• Provides multiple low-power-down modes including Halt, Sleep, and Stop modes to reduce power consumption.

Applications

• Embedded systems requiring backward compatibility with Z80 instruction sets.
• Industrial control applications utilizing on-chip interrupt controllers and timers.
• Communication interfaces leveraging dual enhanced UARTs and CSI/O channels.
• Memory-intensive designs benefiting from expanded MMU addressing capabilities.

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as historical documentation may indicate non-compliance. Check for End-of-Life (EOL) notices or Product Change Notifications (PCN) regarding availability. Ensure moisture sensitivity level handling protocols are followed during storage and assembly processes.

Selection Notes

Select this component when Z80 software compatibility is required alongside enhanced performance features. Consider the 80-pin QFP package for surface-mount applications. Evaluate power requirements against available low-power modes if energy efficiency is critical. Verify peripheral needs such as DMA channel count and UART specifications match the design constraints.

Part Context

This part belongs to the Z8S180 series, which enhances the original Z80180 architecture. It integrates a high-performance CPU core with system resources like DMA, ASCI, and PRTs. The series supports various packaging styles including PLCC, DIP, and QFP, catering to diverse embedded microprocessor applications.

Replacement Considerations

Z8L18020FSC: Low-power variant of the same processor family.

FAQ

Does the Z8S18020FSC1960 support Z80 instruction set compatibility?

Yes, it is code compatible with the ZiLOG Z80 CPU while providing a superset of instructions.

What is the maximum data transfer rate supported by the UARTs?

The two enhanced UARTs can transfer data asynchronously at rates up to 512 Kbps.