I. Core Parameters (Compared with 522A)

Processor: MC68040, 32 MHz, 32-bit, with FPU/MMU/8KB Cache (same as 522A)

Memory (Key Differences)

DRAM: 16MB FPM (522A is 8MB)

512KB battery-backed SRAM (same as 522A)

1MB Flash (same as 522A)

Bus: VMEbus A32/D64, Master/Slave, System Controller (same as 522A)

I/O Interfaces (Key Differences)

4 × IndustryPack (IP) slots (same as 522A)

2 × Serial Ports: EIA-232-D (Console), EIA-232/422 optional (same as 522A)

Integrated 10 Mbps Ethernet (with DMA, 522A is optional)

Integrated SCSI Interface (with DMA, 522A is optional)

Environment / Power Consumption: Industrial-grade wide temperature range (0–70°C), +5V power supply, standard VME 6U (same as 522A)

II. 523 vs 522A - Instant Understanding

✅ MVME162-523: 16MB DRAM + onboard Ethernet + onboard SCSI, suitable for complex systems requiring network and storage.

✅ MVME162-522A: 8MB DRAM + Ethernet/SCSI optional, basic model, suitable for pure control scenarios without network/storage.

III. Main Features

Integrated: CPU, memory, network port, SCSI, serial port, IP expansion slot all in one, no need for additional daughter cards.

High Reliability: Industrial-grade design, resistant to vibration/impact, supports VxWorks, pSOS real-time systems.

Strong Expansion: 4 IP slots, can flexibly add I/O, communication, analog module.

High Real-time Performance: MC68040 + VMEbus, suitable for industrial automation, military, embedded control.

IV. Typical Applications

Industrial DCS/PLC systems, process control

Embedded real-time control, robots

Military/aviation, communication equipment, test measurement

Scenarios requiring local storage (SCSI) + network communication