Z84C9010VSC00TR

Specialized Overview

The Z84C9010VSC00TR is a Serial/Parallel Counter/Timer KIO peripheral device manufactured by Zilog. It integrates the functions of a Z84C30 CTC, a Z84C20 PIO, and a Z84C4x SIO into a single package. The component operates at a bus clock frequency of 10 MHz and utilizes an 84-pin PLCC package. It supports a single +5 V power supply and includes an on-chip clock oscillator/driver. The device features two independent synchronous/asynchronous serial channels, three 8-bit parallel ports, four independent counter/timer channels, and an 8-bit bit-programmable I/O port.

Specialized Feature Summary

• Integrates multiple peripherals including a Parallel Input/Output unit, a Counter/Timer unit, and a Serial I/O unit within a single chip.
• Supports software and hardware resets for individual internal devices without resetting the entire KIO.
• Features programmable interrupt priorities and supports the Z80 Family interrupt daisy chain configuration.

Specialized Applications

• Systems requiring combined serial communication and parallel I/O management
• Applications utilizing event counting or interval timing via dedicated counter/timer channels
• Embedded designs compatible with the Z80 CPU family

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and speed grade. Confirm availability status as legacy components may have limited distribution channels. Ensure compatibility with existing system voltage levels and interface requirements before procurement.

Specialized Selection Notes

Select this component when a design requires integrated serial, parallel, and timer functionalities to reduce board space. Verify that the 10 MHz operating frequency meets system timing requirements. Ensure the 84-pin PLCC package footprint matches the PCB layout constraints and assembly capabilities.

Specialized Part Context

This part belongs to the Z84C90 series of KIO peripherals designed for Z80-based systems. It consolidates discrete logic functions into a single CMOS IC, simplifying system architecture compared to using separate Z84C30, Z84C20, and Z84C4x chips.

Specialized Replacement Considerations

Direct pin-to-pin replacements are not explicitly documented in the provided source material. Consider evaluating other members of the Z84C90 series (e.g., Z84C9008VSC, Z84C9012VSC) if different clock speeds or package variants are acceptable, subject to firmware adaptation.