Emerson / Motorola MVME147SA-2 MPU VME Module

The Emerson/Motorola MVME147SA-2 is a VMEbus single-board computer engineered for industrial automation, process control, and telecommunications infrastructure. This 32-bit module delivers compute performance in harsh environments spanning −40°C to +85°C, combining an MC68030 processor with integrated floating-point acceleration, configurable DRAM up to 32 MB, and multi-protocol I/O including SCSI, Ethernet, and serial communications.

Technical Specifications Processor & Memory

MC68030 microprocessor at 16, 25, or 33.33 MHz with on-chip cache and Memory Management Unit (MMU)

MC68882 Floating-Point Coprocessor synchronized to processor frequency

DRAM: 4 MB to 32 MB configurable, selectable parity options

Static RAM: 2 KB with battery backup

EPROM: Four 32-pin sockets supporting up to 1 M × 8 devices VMEbus Interface

A32/D32 and A24/D16 master interface

System Controller capable

ANSI/VITA 1-1994 VME64 (IEEE STD 1014) compliant I/O & Communications

Four EIA-232-D serial ports via 8530 controller

Narrow SE SCSI via WD33C93B with DMA

10 Mb Ethernet (AMD AM7990 Lance MAC with Intel LXT901 SIA)

8-bit bidirectional parallel interface (Centronics printer port compatible) Timekeeping & Diagnostics

Time-of-Day Clock/Calendar with battery backup (MK48T02 NVRAM)

Two 16-bit timers and watchdog timer

On-board command-driven debugger and diagnostic package

Physical & Environmental

Dimensions: 233.4 mm H × 160.0 mm D × 19.8 mm W (9.187" × 6.299" × 0.8")

Front panel: 261.8 mm (10.3")

Weight: ~1 kg

Operating temperature: −40°C to +85°C

PWB flammability rating: UL 94V-0

Key Features

P1/P2 backplane design for 32-bit VMEbus systems

Battery-backed time-of-day and static RAM

MVME712M transition module support for serial port adaptation

Backward compatible with existing VMEbus installations

Compatibility & Integration The MVME147SA-2 integrates into VMEbus platforms alongside related models (MVME147S, MVME147S-1, MVME147SA-1, MVME147SB-1, MVME147SC-1, MVME147SRF). Header J2 configuration is debugger-dependent per 147Bug specifications.