MVME162‑833

Brand: Motorola / Emerson / Abaco Systems

Series: MVME162

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

Position: 16MB DRAM + single Ethernet + no SCSI + 4×IP slots (high-end model without floating-point, economy model)

I. Core Hardware (Key points: 16MB + no floating-point)

Processor: MC68LC040, 25 MHz

32-bit, 8KB cache + MMU, no FPU (floating-point)

Memory DRAM: 16MB (with parity check)

Battery backup SRAM: 512KB (data retention during power loss)

Flash Memory: 1MB (162Bug firmware)

Real-time Clock: with battery backup

II. On-board I/O (Same as 813, single network without SCSI)

✅ Single 10Mbps Ethernet (DMA)

✅ Dual serial ports

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

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

✅ 4 IndustryPack (IP) expansion slots (with DMA)

❌ No SCSI interface

One sentence: The interface is exactly the same as 813, only the memory is increased from 8MB to 16MB.

III. Bus and Mechanical

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

Form: Standard 6U VME double-height single-board

Power supply: +5V, typical 3.0A

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

IV. Comparison of Key Models in the Same Series (Quickly Differentiate 813/833)

MVME162-813: LC040 (no floating point), 8MB, single network, no SCSI, 4IP

MVME162-833: LC040 (no floating point), 16MB, single network, no SCSI, 4IP

MVME162-743: 040 (with floating point), 16MB, dual network, no SCSI, 4IP

MVME162-533A: 040 (with floating point), 16MB, single network, SCSI, 4IP

One sentence: 833 = 813's 16MB version; 743 = 833's dual network + floating point version.

V. Typical Applications

Industrial control, DCS, PLC (no floating point, requires 16MB memory)

Data acquisition, general automation (8MB is insufficient, 16MB is just right)

VME system requires 4 IP expansions, budget-sensitive, no dual network / SCSI

Single network port, no hard drive, low-cost scenarios that pursue stability + large memory

VI. Compatibility and Replacement

Same series can be directly interchanged: 162-223/530/531/532/533A/723/743/763/813/833

Key differences: Whether the CPU has FPU, memory size, number of network ports, presence of SCSI, number of IP slots