I. Product Positioning

MVME167‑033A is a 6U VME single-height SBC from Motorola/Emerson, belonging to the MVME167 33MHz high-performance series;

033A = 33MHz + 16MB parity-check DRAM;

It is fully compatible and directly interchangeable with 031A/032A/034A/031B/032B/033B/034B in terms of pins, mechanics and interfaces.

Positioning: 33MHz, 16MB large memory, suitable for high data throughput, complex algorithms, and multi-task VME systems.

II. Core Hardware Parameters

1) Processor

MC68040RC33, 33MHz

32-bit, built-in FPU (hardware floating point), 8KB L1 cache, MMU

33MHz has approximately 30% higher instruction performance and stronger floating point capabilities compared to the 25MHz model

2) Memory (033A Key Feature: 16MB)

DRAM: 16MB 32-bit parity (standard), expandable to 32MB

SRAM: 128KB battery backup (data retention during power loss)

Flash/ROM: 4×44-pin PLCC, 2×32-bit storage units

NVRAM/RTC: 8K×8 NVRAM + real-time clock (battery backup)

3) Built-in I/O (Consistent with the series)

Ethernet: 10Mbps 10BASE-T/AUI, DMA

Serial Port: 4×EIA-232-D (1 controller + 3 users), up to 115200bps

SCSI-2: single-ended, DMA, 20MB/s, supports 7 external devices

Parallel Port: 1×IEEE 1284 bidirectional

VME Bus: A32/D32, master / slave / system controller

Expansion: PMC expansion slot (optional)

Timer / Watchdog: 6×32-bit programmable timer + hardware WDT

4) Electrical and Environmental

Power Supply: +5V DC ±5%, typical 4.0A, maximum 5.0A

Operating Temperature: 0℃～+55℃ (standard)

Storage Temperature: -55℃～+125℃

Cooling: forced air cooling, approximately 100CFM

Power Consumption: approximately 20W (typical)

5) Structure

Size: 6U VME (233.4×160mm), single height

Weight: approximately 0.7kg

III. Memory Comparison of MVME167 33MHz A Version

031A: 4MB (entry-level)

032A: 8MB (mainstream)

033A: 16MB (mid-to-high configuration)

034A: 32MB (33MHz top configuration)

IV. Differences between 033A and 033B

033A: standard version, basic firmware, general industrial environment

033B: enhanced version, optimized PCB/ESD/anti-interference, updated 167Bug firmware, more stable in harsh conditions

V. Typical Applications

Industrial automation, machine vision, motion control, data acquisition, requiring 33MHz real-time computing power, 16MB large memory, high throughput and multi-tasking VME system.