Z84C4208PEC

Specialized Overview

The Z84C4208PEC is a CMOS Serial I/O Controller manufactured by Zilog, belonging to the Z80 series. It operates on a single 5V supply voltage and features an 8-bit external data bus width. The device is housed in a 40-pin Plastic Dual In-line Package (PDIP) designed for through-hole mounting. It supports two serial channels with a maximum data transmission rate of 0.25 MBps. The component functions as a specialized interface IC for I/O controller applications.

Specialized Feature Summary

• Supports multiple communication protocols including ASYNC BIT, SYNC BYTE, SYNC HDLC, SYNC SDLC, X.25, and BISYNC.
• Integrates two independent serial I/O channels within a single CMOS package.
• Designed for direct interfacing with Z80-compatible microprocessor systems.

Specialized Applications

• I/O Controller Interface
• Serial Communication Systems
• Data Terminal Equipment

Specialized Procurement Notes

This component is officially listed as discontinued by the manufacturer. Verification of availability requires checking secondary market distributors or surplus suppliers. Ensure that any sourced units are authentic Zilog products and verify RoHS compliance status, as the datasheet indicates non-compliance. Confirm the specific package variant matches the required PCB footprint before procurement.

Specialized Selection Notes

Select this part when designing legacy Z80-based systems requiring dedicated serial I/O handling. It serves as a drop-in replacement for earlier Z84C40 variants within the same family. Consider the 40-pin DIP package constraints and ensure the design accommodates the specific pinout configuration defined in the official datasheet for proper signal routing.

Specialized Part Context

The Z84C4208PEC is part of the Z84C40 series of Serial I/O Controllers produced by Zilog. This series provides hardware support for complex serial communication protocols, reducing the processing load on the main CPU. It is distinct from the Z84C1000 series DMA controllers and Z84C0000 series CPUs within the broader Z80 ecosystem.

Specialized Replacement Considerations

Official substitutes include other members of the Z84C40 series such as the Z84C4206PEG or Z84C4208PEG, which share similar functional characteristics but may differ in clock speed or package type. Verify pin compatibility and electrical specifications against the target application requirements before substitution.