MVME147-022A
May 15, 2026

MVME147-022A

MVME147‑022A 6U VME64 Single Board Computer (SBC) Motorola / Emerson – Datasheet (Plain Text, No Images) Manufacturer: Motorola (later Emerson / Curtiss‑Wright) Part Number: MVME147‑022A Form Factor: 6U VMEbus, VME64 Compliant CPU: Motorola MC68030 @ 33.33 MHz FPU: MC68882 @ 33.33 MHz Memory: 8 MB DRAM (no parity) Revision: “A” = Hardware Rev A (pin‑compatible with MVME147‑022) Application: Industrial control, VMEbus master, factory automation, high‑speed 33 MHz systems without parity requirement Summary: MVME147‑022A = 33.33 MHz + 8 MB DRAM (non‑parity) + ETH+SCSI + Rev A

Description

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MVME147‑022A

6U VME64 Single Board Computer (SBC)

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

Manufacturer: Motorola (later Emerson / Curtiss‑Wright)
Part Number: MVME147‑022A
Form Factor: 6U VMEbus, VME64 Compliant
CPU: Motorola MC68030 @ 33.33 MHz
FPU: MC68882 @ 33.33 MHz
Memory: 8 MB DRAM (no parity)
Revision: “A” = Hardware Rev A (pin‑compatible with MVME147‑022)
Application: Industrial control, VMEbus master, factory automation, high‑speed 33 MHz systems without parity requirement
Summary:
MVME147‑022A = 33.33 MHz + 8 MB DRAM (non‑parity) + ETH+SCSI + Rev A

1. General Description

The MVME147‑022A is a high‑speed 6U VME64 single‑board computer, pin‑to‑pin compatible with MVME147‑022. It uses 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 8 MB DRAM (non‑parity). Peripherals include AUI Ethernet, SCSI, four serial ports, parallel port, and battery‑backed SRAM/RTC. Designed for higher clock speed (33 MHz) industrial embedded applications where parity is not required.

2. Key Features

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

  • FPU: MC68882 @ 33.33 MHz, IEEE 754 compliant

  • DRAM: 8 MB, non‑parity

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

  • Battery‑Backed SRAM: 4 KB

  • RTC: Battery‑backed real‑time clock

  • Onboard I/O:

    • 4 × EIA‑232‑D serial (Z8530)

    • 1 × Centronics parallel

    • 1 × asynchronous SCSI (WD33C93, DMA)

    • 1 × AUI 10 Mbps Ethernet

  • VMEbus: A16/A24/A32, D08/D16/D32, Master/Slave, System Controller

  • Timers/Watchdog: Dual 16‑bit timers, watchdog

  • LEDs: SCON, RUN, FAIL, STATUS

  • Switches: RESET, ABORT


3. Electrical Specifications

  • Power: +5 VDC, ±12 VDC

  • Logic: 5 V TTL

  • 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

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


6. Supported Operating Systems

  • VxWorks

  • Motorola VERSAdos

  • NetBSD/mvme68k

  • Custom embedded RTOS

  • Bare‑metal


7. MVME147‑022 vs 022A

  • MVME147‑022: Initial PCB / component revision (33 MHz, 8 MB, no parity)

  • MVME147‑022A: Rev A (hardware update, minor fixes; 100% compatible in function, pinout, electricals)

  • Software, configuration, cabling, chassis: fully interchangeable


8. MVME147 33 MHz Series (02x)

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

  • MVME147‑022A: 33.33 MHz, 8 MB, ETH+SCSI, no parity (Rev A)

  • (Other 02x: 021=4MB, 023=16MB, 024=32MB; all 33 MHz)


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