Z85C3008VEG

Specialized Overview

The Z85C3008VEG is a CMOS Serial Communications Controller (SCC) designed for nonmultiplexed bus microprocessors. It features two independent full-duplex channels supporting data rates up to 4.1 Mbps, each with dedicated crystal oscillators, baud rate generators, and digital phase-locked loops. The device supports asynchronous, synchronous, and SDLC/HDLC protocols with programmable data encoding. It operates within a supply voltage range of 4.5V to 5.5V and functions at temperatures from 0°C to +70°C. The component is housed in a 44-pin PLCC package.

Specialized Feature Summary

• Dual-channel architecture with independent clock recovery mechanisms
• Multiprotocol support including asynchronous, synchronous, and SDLC/HDLC modes
• Integrated CRC generation and checking capabilities
• Enhanced DMA support with status FIFO and byte counters

Specialized Applications

• Serial communication interfaces for nonmultiplexed microprocessor systems
• T1 digital trunk applications
• Peripheral control for diskette, tape, or cassette drives
• Modem control logic implementation

Specialized Procurement Notes

Verify the specific suffix 'EG' against manufacturer documentation to confirm lead-free compliance and RoHS status. Confirm current production status as this series may be subject to end-of-life notices. Ensure compatibility with nonmultiplexed bus architectures before procurement.

Specialized Selection Notes

Select the Z85C30 variant specifically for systems utilizing nonmultiplexed address/data buses. Verify that the required operating frequency aligns with the available speed options. Ensure the application does not require multiplexed bus support, which necessitates the Z80C30 model instead.

Specialized Part Context

This component belongs to the Z85C30 family of CMOS SCCs, introduced by Zilog. It maintains pin and software compatibility with earlier NMOS versions while offering improved performance and lower power consumption through advanced CMOS processing technology.

Specialized Replacement Considerations

The Z85C3008VEC serves as a direct functional replacement within the same package type. For multiplexed bus requirements, the Z80C30 series provides equivalent functionality with compatible pinouts.