Z84C9008VED1380

Specialized Overview

The Z84C9008VED1380 is a Serial/Parallel Counter/Timer KIO peripheral manufactured by Zilog. It integrates a Z84C20 PIO, a Z84C30 CTC, and a Z84C4x SIO into a single package. The device operates at an 8 MHz bus clock frequency and utilizes a single +5 V power supply. It is housed in an 84-pin PLCC (Plastic Leadless Chip Carrier) package. The component supports software/hardware resets and features an on-chip clock oscillator/driver. It is designed for low-power CMOS operations and supports the Z80 Family interrupt daisy chain with programmable priorities.

Specialized Feature Summary

• Integrates two independent synchronous/asynchronous serial channels, three 8-bit parallel ports, and four independent counter/timer channels within a single unit.
• Includes an on-chip clock oscillator/driver that accepts crystal or TTL-compatible inputs to generate MOS-compatible outputs.
• Supports Z80 Family interrupt daisy chains with user-configurable priority sequences among internal peripherals.

Specialized Applications

• Systems requiring combined serial communication and parallel I/O expansion
• Applications needing multiple hardware timer and counting functions
• Z80-based embedded controller designs

Specialized Procurement Notes

Verify the specific suffix 'VED1380' against official Zilog documentation to confirm package type and speed grade. Confirm RoHS compliance status as manufacturing practices may vary. Check current lifecycle status directly with the manufacturer or authorized distributors, as availability for legacy components can change without public notice.

Specialized Selection Notes

Select this component when a system requires a consolidated solution for serial data handling, parallel port interfacing, and precise timing control. Ensure the host CPU supports the required Z80 bus cycle signals such as M1, RD, and IORQ. Verify that the 84-pin PLCC footprint matches the target PCB layout constraints.

Specialized Part Context

This part belongs to the Z84C90 KIO family, which combines standard Zilog peripheral functions into one chip. The 'V' indicates the 84-pin PLCC package, while 'E' typically denotes extended temperature range or specific manufacturing lot codes depending on the era of production. The 'D1380' suffix specifies the 8 MHz operating frequency variant.

Specialized Replacement Considerations

Consult the Z84C90 Ordering Matrix in the product specification for alternative frequencies or packages. Direct pin-to-pin replacements are limited to other Z84C90 variants with compatible pinouts. No generic third-party equivalents are officially documented.