MVME162‑723

Brand: Motorola (Motorola) / Emerson

Series: MVME162

Type: 6U VME bus embedded controller / single-board computer (SBC)

Features: Dual Ethernet ports + no SCSI + 4×IP slots, common industrial control model.

1. Core Hardware

Processor: MC68LC040 (no floating point) or MC68040 (with floating point), 25 MHz, 32-bit, 8KB cache + MMU

Memory DRAM: 8MB with parity (723 fixed 8MB)

Battery backup SRAM: 512KB (battery-backed)

Flash Memory: 1MB (firmware / monitoring program)

Real-time Clock: with battery backup

II. On-board I/O (Key Point: Dual Network Ports)

✅ Dual 10Mbps Ethernet (DMA) - The most prominent feature of 723, two independent network ports

✅ Dual Serial Ports

Serial Port 1: Console (EIA-232-D)

Serial Port 2: EIA-232 / 422 (optional)

✅ 4 IndustryPack (IP) Expansion Slots (each slot with DMA)

❌ No SCSI interface (different from 532A/533A)

III. Bus and Mechanical

Bus: VMEbus A32/D64, master/slave mode, can be used as a system controller

Form: Standard 6U VME board (double height)

Power Supply: +5V, typical 3.5A, maximum 4.5A

Temperature: 0°C ~ 70°C (industrial grade)

IV. Differences from Your Previous Models (Easy to Understand at a Glance)

MVME162-533A: 16MB, single network port + SCSI + 4IP

MVME162-723: 8MB, dual network ports + no SCSI + 4IP

In one sentence: 723 = Dual Network Port Version 531A, no SCSI, 8MB memory, suitable for dual network redundancy/isolation scenarios.

V. Typical Applications

Industrial DCS, PLC control systems

Dual Ethernet Redundancy / Network Isolation Devices

Embedded Real-time Control, Data Acquisition

VME Bus Automation, Test Measurement System

VI. Compatibility and Replacement

Interchangeable within the same series: MVME162-223 / 530A / 531A / 532A / 533A / 723

Main Differences: Memory Size, Network Port Quantity, Presence of SCSI