Z80C3008VSC

Specialized Overview

The Z80C3008VSC is a CMOS Serial I/O Controller manufactured by Zilog, belonging to the Z85C30 family. It provides two independent serial communication channels within a single integrated circuit. The device supports asynchronous and synchronous data transmission modes with programmable baud rates. It features an 8-bit external data bus and operates at a maximum clock frequency of 10 MHz. The component is housed in a 44-pin Plastic Leaded Chip Carrier (PLCC) package designed for surface-mount applications. It functions as a dedicated interface controller for microprocessor systems requiring robust serial connectivity.

Specialized Feature Summary

• Dual-channel architecture supporting simultaneous independent serial communications
• Comprehensive protocol support including HDLC, SDLC, BISYNC, and X.25
• Integrated DMA request generation capability for high-speed data transfer
• Programmable interrupt control for efficient system resource management

Specialized Applications

• Industrial automation systems requiring reliable serial data exchange
• Telecommunications equipment utilizing TDMA or multiplexed protocols
• Embedded computer systems needing additional UART functionality
• Point-of-sale terminals and data acquisition interfaces

Specialized Procurement Notes

Verify the specific suffix VSC against manufacturer documentation to confirm package type and temperature range. Confirm RoHS compliance status as older Zilog variants may not meet current environmental standards. Check for obsolescence notices from Zilog or authorized distributors before finalizing procurement plans.

Specialized Selection Notes

Select this component when dual serial ports are required without external logic gates. Compare against the Z85C30 series for pin compatibility and feature parity. Ensure the host microprocessor supports the necessary control signals for DMA and interrupt handling. Verify voltage levels match the target system's I/O requirements.

Specialized Part Context

This part belongs to the Z85C30 Serial Communication Controller family, widely used in legacy and industrial embedded designs. It serves as a direct replacement for earlier discrete UART solutions. The Z80C3008VSC variant specifically denotes the plastic PLCC packaging option within the broader Z85C30 product line.

Specialized Replacement Considerations

The Z85C3008VEC is a compatible alternative within the same family offering similar functionality. Verify pinout compatibility and software register mapping before substitution. Other generic UARTs may require significant hardware redesign.