Z8018008PEC

Overview

The Z8018008PEC is an 8-bit microprocessor unit based on the Z80 architecture, operating at a maximum clock frequency of 8 MHz. It features a single core with an 8-bit data bus width and utilizes SRAM storage type for its internal memory resources. The device operates within a voltage range of 4.5 V to 5.5 V, with a rated supply voltage of 5 V. It supports an extended commercial temperature range from 0°C to +70°C. The component is housed in a 64-pin Dual In-line Package (DIP) designed for through-hole mounting.

Feature Summary

• Provides full backward compatibility with existing Zilog Z80 CPU code while offering an extended instruction set including 8-bit multiply operations.
• Integrates two DMA channels capable of high-speed transfers between memory and I/O devices across the full 1 MB address space.
• Includes on-chip asynchronous serial communication interfaces (ASCI) providing two full-duplex UARTs with programmable baud rate generators.
• Features an integrated Memory Management Unit (MMU) allowing logical 64 KB mapping into an expanded 1 MB physical addressing range.

Applications

• Industrial control systems requiring robust interrupt handling and direct memory access capabilities
• Embedded applications utilizing legacy Z80 software architectures with enhanced peripheral integration
• Communication equipment needing integrated UART functionality for serial data transmission

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and environmental compliance. Confirm availability status as distribution channels may list obsolete or end-of-life inventory. Ensure the selected variant matches the required pin configuration and thermal specifications for the target application environment.

Selection Notes

Select this component when system design requires a drop-in replacement for standard Z80 processors with added on-chip peripherals. Consider the 64-pin DIP package constraint if board layout mandates through-hole technology. Evaluate the need for the integrated MMU and DMA controllers to reduce external component count compared to discrete solutions.

Part Context

This part belongs to the Z80180 family of microprocessors developed by Zilog. The series combines the Z80 CPU core with extensive on-chip peripherals including timers, serial ports, and DMA controllers. The Z8018008PEC represents a specific speed grade and packaging option within this broader product line, maintaining architectural consistency with other variants in the family.

Replacement Considerations

Direct substitutes include other Z80180 variants such as Z8018006PEG or Z8018010PEG, differing primarily in clock speed or package style. Verify pin compatibility and electrical characteristics before substitution. Cross-referencing with Z180 equivalents may be necessary if extended instruction set support is not required.