Emerson / Motorola MVME162-353 Embedded Controller

The Emerson/Motorola MVME162-353 is a 6U VMEbus single-board computer engineered for industrial embedded control and real-time processing. Built around the Motorola 68040 processor running at 25 MHz, it delivers deterministic performance for demanding applications requiring integrated I/O, memory management, and VME system control functionality.

Technical Specifications Processor & Core Logic

Motorola 68040 at 25 MHz with Memory Management Unit (MMU) and Floating Point Unit (FPU)

VMEchip2 ASIC controller supporting A16/A24/A32 addressing and D8/D16/D32 data widths

VME D64 specification support with system controller capability Memory Architecture

32 MB ECC DRAM (4 MB, 8 MB, or 16 MB parity-protected DRAM configurations available)

512 KB SRAM with battery backup

1 MB Flash memory for monitor, debugger, and user firmware

8K × 8 Non-Volatile RAM (NVRAM) with Thompson MK48T08 Time of Day clock and battery backup

One 1 Mbit 32-pin PLCC EPROM socket I/O Interfaces

Two serial ports: console port (EIA-232-D DTE) and user-configurable second port (EIA-232-D or EIA-530 DTE/DCE). Zilog Z85230 controller; 38.4 kbps maximum baud rate; RJ-45 connectors

Optional Intel 82596CA Ethernet controller with DB-15 connector

Optional NCR53C710 narrow SE SCSI bus controller; 32-bit local bus burst DMA; 68-pin connector

Four MVIP IndustryPack interfaces supporting single or double-width modules with one DMA channel per port; 50-pin connectors

8-bit bidirectional parallel interface via Programmable Channel Controller (PCC2 ASIC)

Six 32-bit timers (four without VMEbus) and watchdog timer Power Requirements

+5 V (± 5%): 3.5 A typical, 4.5 A maximum

+12 Vdc (± 5%): 100 mA maximum

−12 Vdc (± 5%): 100 mA maximum Physical Dimensions

Double-high VME form factor: 233.4 mm height × 160.0 mm depth × 19.8 mm width

Front panel height: 261.8 mm

Key Features

32-bit data bus with 32-bit burst DMA capability

Multiple I/O expansion via IndustryPack slots with dedicated DMA channels

Battery-backed SRAM and NVRAM for persistent real-time clock and data retention

Flexible memory hierarchy supporting ECC protection and firmware options

Typical Applications Industrial control systems, real-time process automation, measurement and test platforms, and VME-based data acquisition requiring integrated serial, Ethernet, and SCSI connectivity.

Compatibility & Integration Full VME specification compliance enables integration into existing backplane systems. Optional Ethernet and SCSI controllers provide external device connectivity. IndustryPack interface accommodates application-specific I/O expansion modules.