Emerson / Motorola MVME332 VMEbus Intelligent Communications Controller

The Emerson/Motorola MVME332 is a VMEbus Intelligent Communications Controller delivering versatile serial and digital I/O capabilities for industrial automation, data acquisition, and embedded control systems. Built around an MC68010 processor running at 12 MHz with an MC68230 coprocessor at 10 MHz, this 6U VME module integrates eight channels of synchronous and asynchronous RS232C communications in a compact 160 mm × 233.35 mm form factor.

## Technical Specifications

• **Processor:** MC68010 at 12 MHz with MC68230 coprocessor at 10 MHz
• **Memory:** 256 KB SRAM; 128 KB DRAM (expandable to 512 KB); 128 KB EPROM
• **Serial Channels:** 8-channel communications controller
• **Communication Protocols:** Synchronous and asynchronous, RS232C levels
• **I/O Interface:** All I/O lines available at RS232 levels via front panel connectors and P2
• **Digital I/O (MVME332 01-W3504B-01D variant):** Multi-channel isolated digital inputs with TTL/CMOS compatibility; switch outputs and open-collector/relay drive outputs
• **VMEbus Interface:** VME64x and VME320 compliant with 32-bit/64-bit data paths at 33 MHz/66 MHz bus speeds
• **Form Factor:** 6U VME (160 mm × 233.35 mm)
• **Operating Temperature:** 0°C to 55°C (standard); −40°C to +85°C (industrial grade)
• **Environmental Design:** Anti-vibration and anti-impact construction

## Key Features

• Supports both synchronous and asynchronous communication protocols
• Eight independent serial communication channels with RS232C interface
• Digital input channels with multi-channel isolation and strong interference rejection
• Digital output channels capable of direct external device drive
• Expandable memory architecture up to 512 KB DRAM
• VME64x and VME320 standards compliance
• Mezzanine module expansion support (Ethernet, SCSI, CANbus optional)

## Typical Applications

• Industrial automation and process control
• Data acquisition systems
• Digital sensor and switch signal acquisition
• Relay and actuator control
• Factory production status detection and control
• Embedded control systems

## Compatibility & Integration

The MVME332 integrates into standard VME chassis and supports external I/O expansion via VMEbus or optional mezzanine modules. Compatible accessories include the Motorola 345101 8-Channel RS232C Transition Board and MVME-TR2 P2-Adapter for Motorola CPUs.