Z8018008VSG

Overview

The Z8018008VSG 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 includes 64 kB of on-chip SRAM. The device operates within a voltage range of 5 V and supports an industrial temperature range from 0°C to +70°C. It utilizes a 68-pin PLCC package for surface mount installation.

Feature Summary

• Provides full backward compatibility with existing Zilog Z80 CPU code while offering extended instruction sets.
• Integrates two DMA channels, two UARTs, and two programmable reload timers directly on-chip to reduce system component count.
• Includes an expanded Memory Management Unit (MMU) capable of addressing up to 1 MB of memory space.
• Features an internal clock oscillator/generator and three wait-state generators for flexible system timing.

Applications

• Industrial control systems requiring robust I/O integration
• Embedded applications needing extended memory addressing capabilities
• Cost-sensitive designs utilizing legacy Z80 software architectures

Procurement Notes

Verify the specific suffix 'VSG' against the manufacturer's current ordering information to confirm lead-free compliance and package type accuracy. Confirm that the 8 MHz speed grade matches the design requirements, as other variants exist within the Z80180 family. Check for any product discontinuance notifications or last-time-buy statuses associated with this specific part number before finalizing procurement plans.

Selection Notes

Select this component when a Z80-compatible processor with integrated peripherals is required. Ensure the design accommodates the 68-pin PLCC footprint and 5 V logic levels. Consider the 8 MHz performance limit relative to system timing constraints. Verify that the on-chip SRAM size meets memory requirements without external expansion.

Part Context

This part belongs to the Z80180 series of enhanced microprocessors manufactured by Zilog. The series combines the Z80 CPU core with various peripheral functions such as DMA, UART, and timers. The Z8018008VSG specifically denotes the 8 MHz speed variant in a lead-free 68-pin PLCC package, distinguishing it from DIP or QFP versions and different clock speeds like 6 MHz or 10 MHz.

Replacement Considerations

Z8018006VSG (6 MHz version)

FAQ

Does the Z8018008VSG include a watchdog timer?

No, the Z8018008VSG does not include an on-chip watchdog timer.

What is the address bus width of the Z8018008VSG?

The Z8018008VSG features a 20-bit address bus (A0-A19), allowing access to up to 1 MB of memory space.