Z80C3010VSG

Specialized Overview

The Z80C3010VSG is a CMOS Serial Communications Controller (SCC) optimized for multiplexed bus microprocessors. It features two independent full-duplex channels supporting data rates from 0 to 4.1 Mbps. Each channel includes a dedicated crystal oscillator, Baud Rate Generator (BRG), and Digital Phase-Locked Loop (DPLL). The device supports asynchronous, synchronous byte-oriented, and SDLC/HDLC protocols with programmable data encoding including NRZ, NRZI, and FM. It operates within a voltage range of 4.5 V to 5.5 V and utilizes a 44-pin PLCC package.

Specialized Feature Summary

• Dual-channel architecture with independent clock recovery mechanisms
• Multiprotocol support for asynchronous, synchronous, and SDLC/HDLC modes
• Integrated status FIFO and DMA capabilities for high-speed transfers
• Software interrupt acknowledge and daisy-chain interrupt hierarchy

Specialized Applications

• Serial communication interfaces for multiplexed bus systems
• SDLC/HDLC frame processing in network controllers
• T1 digital trunk line interface applications
• General-purpose serial I/O expansion modules

Specialized Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Check for obsolescence notices as the product may be discontinued. Ensure proper ESD handling procedures are followed during storage and installation.

Specialized Selection Notes

Select this model specifically for systems utilizing multiplexed address/data buses. Verify that the host processor timing aligns with the Z80C30 specifications. Consider the Z85C30 variant if the design employs nonmultiplexed buses instead. Evaluate power consumption requirements against the CMOS process characteristics.

Specialized Part Context

This component belongs to the Zilog Z80C30 family of Serial Communications Controllers. It serves as the CMOS successor to earlier NMOS versions, offering pin compatibility while providing improved performance and lower power consumption. The '10' designation indicates a 10 MHz operating speed capability.

Specialized Replacement Considerations

The Z85C30 series offers functional equivalence for nonmultiplexed bus designs. Earlier NMOS SCC versions provide pin-compatible alternatives but lack enhanced DMA and software interrupt features.