Z8019520FSC

Overview

The Z8019520FSC is a microprocessor unit (MPU) belonging to the Z180 series, manufactured by Zilog. It integrates the Z8S180 core processor with an 8-bit architecture and operates at a maximum clock speed of 20MHz. The device features a DRAM controller and supports I/O voltages of 5.0V. It is housed in a 100-QFP surface-mount package and is designed for operation within a temperature range of 0°C to 70°C.

Feature Summary

• Integrates the Z8S180 core processor with 8-bit data bus width
• Includes dedicated DRAM controller functionality
• Supports additional interfaces including CSIO, SCC, and UART

Applications

• Embedded control systems requiring Z180 compatibility
• Industrial applications operating within commercial temperature ranges
• Systems utilizing DRAM memory architectures

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm package integrity and pin alignment for the 100-QFP form factor. Review datasheet specifications for voltage levels and timing requirements to ensure compatibility with existing system designs before procurement.

Selection Notes

Select this component when Z180 instruction set compatibility is required alongside integrated DRAM management. Consider the 20MHz operational frequency and 5.0V I/O levels against system power constraints. Evaluate the 100-QFP package dimensions for PCB layout feasibility compared to alternative pin counts in the Z80195 family.

Part Context

This part belongs to the Zilog Z180 series, which extends the legacy Z80 architecture with enhanced peripheral integration. The Z80195 variant specifically adds a DRAM controller and expanded serial communication capabilities compared to earlier models like the Z80180. It serves as a bridge between classic microprocessors and more complex embedded controllers.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify cross-references with other Z8019x variants such as the Z8019533FSC for higher clock speeds, ensuring functional equivalence regarding the DRAM controller and interface sets.