MVME147‑014A

6U VME64 Single Board Computer (SBC)

Official Datasheet (Plain Text, No Images)

1. General Description

2. Key Features

• Processor: MC68030 @ 25 MHz, integrated MMU, 256‑byte instruction/data cache

• Floating‑Point Coprocessor: MC68882 @ 25 MHz, IEEE 754 compliant

• DRAM: 32 MB, programmable parity (error checking)

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

• Battery‑Backed SRAM: 4 KB for data retention

• Real‑Time Clock (RTC): Battery‑backed 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. MVME147‑014 vs 014A (Difference Only)

• MVME147‑014: Initial PCB / component revision

• MVME147‑014A: Rev A (hardware update, minor early issues fixed; 100% compatible in function, pinout, and electricals)

• Software, configuration, cabling, and chassis: fully interchangeable

8. MVME147 25 MHz Series Overview (Including “A” Revisions)

• MVME147‑011: 25 MHz, 4 MB, ETH+SCSI

• MVME147‑011A: 25 MHz, 4 MB, ETH+SCSI (Rev A)

• MVME147‑012: 25 MHz, 8 MB, ETH+SCSI

• MVME147‑012A: 25 MHz, 8 MB, ETH+SCSI (Rev A)

• MVME147‑013: 25 MHz, 16 MB, ETH+SCSI+parity

• MVME147‑013A: 25 MHz, 16 MB, ETH+SCSI+parity (Rev A)

• MVME147‑014: 25 MHz, 32 MB, ETH+SCSI+parity (top memory)

• MVME147‑014A: 25 MHz, 32 MB, ETH+SCSI+parity (Rev A, latest)