Z8S18033VEC

Overview

The Z8S18033VEC is a static microprocessor based on the Z180 architecture, operating at a maximum clock frequency of 33 MHz. It features an 8-bit data bus width and requires a 5 V supply voltage. The device is housed in a 68-pin PLCC package designed for surface mount installation. It supports an industrial operating temperature range from -40°C to +85°C. Key integrated resources include two DMA channels, two asynchronous serial communication interfaces (ASCI), two programmable reload timers, and a clocked serial I/O channel.

Feature Summary

• Provides full backward compatibility with existing ZiLOG Z80 CPU instruction sets while offering extended instructions and faster execution speeds.
• Integrates two chain-linked DMA channels that allow for nonstop data transfer operations between peripherals and memory.
• Includes two enhanced UARTs with ESCC-like baud rate generators supporting asynchronous data transfer rates up to 512 Kbps.
• Offers multiple low-power-down modes including Stop Mode and Standby Mode to significantly reduce power consumption during idle periods.

Applications

• Embedded control systems requiring Z80 code compatibility
• Industrial automation controllers
• Communication interface modules
• Memory management applications

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and moisture sensitivity level prior to soldering. Check for obsolescence notices as production may be discontinued. Ensure proper ESD handling procedures are followed during storage and assembly due to semiconductor sensitivity.

Selection Notes

Select this variant when a 33 MHz processing speed is required within the specified temperature range. Choose the PLCC-68 package if surface mount technology is preferred over DIP alternatives. Consider the integrated peripheral count to determine if external components can be eliminated. Verify voltage requirements match the system design constraints.

Part Context

This component belongs to the Z8S180 series, which enhances the original Z80180 design with improved power efficiency and additional I/O capabilities. The series maintains object-code compatibility with legacy Z80 processors while introducing modern features like expanded MMU addressing and clock-doubler functionality for cost-effective crystal usage.

Replacement Considerations

Z8S18033VEG: Same core specifications but potentially different environmental or packaging suffix variations. Z8S18033FEC: Alternative package option (80-QFP) with similar electrical characteristics. Verify pinout compatibility and thermal requirements before substitution.