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MVME147-023

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MVME147-023
May 15, 2026

MVME147-023

MVME147‑023 6U VME64 Single Board Computer (SBC) Motorola / Emerson – Datasheet (Plain Text, No Images) Manufacturer: Motorola (later Emerson / Curtiss‑Wright) Part Number: MVME147‑023 Form Factor: 6U VMEbus, VME64 Compliant CPU: Motorola MC68030 @ 33.33 MHz FPU: MC68882 @ 33.33 MHz Memory: 16 MB DRAM, programmable parity Revision: Base model (no “A” suffix; later released as MVME147‑023A) Application: Industrial control, DCS/SIS, VMEbus master, factory automation, high‑speed 33 MHz systems requiring memory parity (error checking) Summary: MVME147‑023 = 33.33 MHz + 16 MB DRAM (parity capable) + ETH+SCSI + Base Rev

Description

MVME147-023A（2.jpg

MVME147-023.jpg

MVME147‑023

6U VME64 Single Board Computer (SBC)

Motorola / Emerson – Datasheet (Plain Text, No Images)

Manufacturer: Motorola (later Emerson / Curtiss‑Wright)
Part Number: MVME147‑023
Form Factor: 6U VMEbus, VME64 Compliant
CPU: Motorola MC68030 @ 33.33 MHz
FPU: MC68882 @ 33.33 MHz
Memory: 16 MB DRAM, programmable parity
Revision: Base model (no “A” suffix; later released as MVME147‑023A)
Application: Industrial control, DCS/SIS, VMEbus master, factory automation, high‑speed 33 MHz systems requiring memory parity (error checking)
Summary:
MVME147‑023 = 33.33 MHz + 16 MB DRAM (parity capable) + ETH+SCSI + Base Rev

1. General Description

The MVME147‑023 is a high‑performance 6U VME64 single‑board computer, pin‑compatible with MVME147‑023A. It features the MC68030 32‑bit CPU @ 33.33 MHz with integrated MMU and 256‑byte cache, plus an MC68882 FPU @ 33.33 MHz. Onboard memory is 16 MB DRAM with programmable parity (for error detection/correction in critical systems). Peripherals include AUI Ethernet, SCSI, four serial ports, parallel port, and battery‑backed SRAM/RTC. Designed for 33 MHz industrial embedded applications requiring parity protection for high reliability.

2. Key Features

  • Processor: MC68030 @ 33.33 MHz, integrated MMU, 256‑byte cache

  • FPU: MC68882 @ 33.33 MHz, IEEE 754 compliant

  • DRAM: 16 MB, programmable parity (error checking enabled/disabled via jumper)

  • EPROM: 4 sockets, up to 4 MB total (16‑bit wide)

  • Battery‑Backed SRAM: 4 KB for data retention

  • RTC: Battery‑backed real‑time clock (calendar/clock)

  • Onboard I/O:

    • 4 × EIA‑232‑D serial ports (Z8530)

    • 1 × 8‑bit Centronics parallel port

    • 1 × asynchronous SCSI (WD33C93, DMA capable)

    • 1 × AUI 10 Mbps Ethernet

  • VMEbus Interface:

    • Address: A16/A24/A32

    • Data: D08/D16/D32

    • Master/slave mode, system controller function

  • Timers & Watchdog: Dual 16‑bit periodic timers, watchdog timer

  • Status LEDs: SCON, RUN, FAIL, STATUS

  • Switches: RESET, ABORT

3. Electrical Specifications

  • Power Supply: +5 VDC, ±12 VDC

  • Logic Levels: 5 V TTL compatible

  • VME Standard: ANSI/VITA 1‑1994, VME64 (IEEE 1014)

4. Mechanical Specifications

  • Form Factor: 6U VME

  • Dimensions: 233.4 mm × 160 mm

  • Mounting: Standard VME chassis slot

5. Environmental Specifications

  • Operating Temperature: 0 °C to +55 °C

  • Storage Temperature: −20 °C to +70 °C

  • Relative Humidity: 5%–95% RH, non‑condensing

6. Supported Operating Systems

  • VxWorks

  • Motorola VERSAdos

  • NetBSD/mvme68k

  • Custom embedded RTOS

  • Bare‑metal programs

7. MVME147‑023 vs 023A

  • MVME147‑023: Initial PCB / component revision (33 MHz, 16 MB, parity)

  • MVME147‑023A: Rev A (hardware update, minor fixes; 100% compatible in function, pinout, electricals)

  • Software, configuration, cabling, chassis: fully interchangeable

8. MVME147 33 MHz Series (02x) Quick Reference

  • MVME147‑021: 33.33 MHz, 4 MB, ETH+SCSI, no parity

  • MVME147‑022: 33.33 MHz, 8 MB, ETH+SCSI, no parity

  • MVME147‑023: 33.33 MHz, 16 MB, ETH+SCSI, parity

  • MVME147‑024: 33.33 MHz, 32 MB, ETH+SCSI, parity

  • (“A” versions = Rev A, same specs, compatible)


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