Z84C4306FEC

Specialized Overview

The Z84C4306FEC is a CMOS Serial Input/Output Controller (SIO) from the Zilog Z8 family, designed for microprocessor systems requiring versatile serial communication interfaces. It integrates two independent UART channels and a programmable timer within a single integrated circuit. The device operates on a single 5V power supply and supports data bus widths of 8 bits. It is available in a DIP-40 package with through-hole mounting capabilities. The component functions as an I/O controller interface IC, facilitating data transfer between parallel microprocessor buses and serial peripheral devices.

Specialized Feature Summary

• Integrates dual Universal Asynchronous Receiver/Transmitter (UART) channels for simultaneous serial communication tasks.
• Includes a programmable timer/counting unit to support system timing requirements.
• Provides direct compatibility with standard microprocessor architectures via an 8-bit data bus interface.
• Supports flexible baud rate generation and control signal management for serial peripherals.

Specialized Applications

• Serial communication interfaces in industrial control systems
• Data acquisition modules requiring multiple serial ports
• Embedded systems needing integrated timing and serial I/O functions

Specialized Procurement Notes

Verify component authenticity and datasheet revisions when sourcing this legacy part. Confirm package integrity and pin configuration against the specific DIP-40 variant. Check for moisture sensitivity handling requirements prior to assembly. Ensure compatibility with existing system voltage levels and logic families. Review discontinuation notices for availability constraints.

Specialized Selection Notes

Select this component when a design requires two asynchronous serial ports and a timer within a single chip footprint. Compare pinout compatibility with existing PCB layouts if replacing older SIO variants. Verify that the 5V logic level meets the system's voltage requirements. Consider the DIP-40 package constraints for board space and mounting style.

Specialized Part Context

This part belongs to the Z84C4306 series of Serial Input/Output Controllers manufactured by Zilog. It is part of the broader Z8 microcontroller and peripheral family, which was widely used in embedded applications during the 1980s and 1990s. The F suffix typically denotes specific temperature or packaging variations within the Z8 product line.

Specialized Replacement Considerations

Direct pin-to-pin replacements may be limited due to the component's discontinued status. Evaluate functional equivalents from other manufacturers offering dual UART controllers with similar pinouts. Verify electrical characteristics and timing parameters before substitution. Cross-reference with Zilog's official obsolescence documentation for recommended alternatives.