Z84C4008PEG

Specialized Overview

The Z84C4008PEG is a specialized I/O controller interface IC manufactured by Zilog, belonging to the Z80 series. It operates on a single 5V supply voltage and features a 40-pin PDIP (Plastic Dual In-line Package) for through-hole mounting. The component supports an 8-bit data bus width and functions as a Serial I/O Controller with two channels. It accommodates multiple communication protocols including ASYNC, BIT, SYNC BYTE, SYNC HDLC, SYNC SDLC, X.25, and BISYNC. The maximum clock frequency is 8 MHz, with a maximum data transfer rate of 0.25 MBps. The device is constructed using CMOS technology.

Specialized Feature Summary

• Dual-channel serial input/output control capability
• Support for diverse synchronous and asynchronous communication protocols
• CMOS construction for low power consumption
• Z80 bus compatibility for system integration

Specialized Applications

• I/O controller systems requiring serial data handling
• Embedded applications utilizing Z80 architecture
• Industrial equipment needing reliable serial communication interfaces

Specialized Procurement Notes

Verify component authenticity and physical condition upon receipt, as this part is listed as obsolete. Check datasheets for any product change notifications or manufacturing site updates that may affect specifications. Ensure storage conditions comply with moisture sensitivity level requirements before soldering. Confirm pinout alignment with existing PCB footprints due to potential legacy package variations.

Specialized Selection Notes

Select this component only if Z80 bus compatibility and dual-channel serial I/O are required. Consider the 40-pin DIP package constraints for board layout. Evaluate alternative modern serial controllers if current production is necessary, as this part is discontinued. Verify that the 8MHz clock speed meets system timing requirements.

Specialized Part Context

This part belongs to the Z84C40 family of serial I/O controllers from Zilog. It is designed to interface directly with Z80-based microprocessors. The 'PEG' suffix indicates the specific plastic DIP package variant. This series was widely used in legacy computing and industrial control systems before being phased out.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the part is obsolete, functional equivalents must be identified through independent engineering analysis of pinouts and protocol support.