MVME162‑043 (Motorola/Emerson)

Position: "Minimal Configuration" of the MVME162‑04x series - 25 MHz, no FPU, 8MB, single network interface, no SCSI; The CPU is LC040, focusing on the lowest cost basic control.

1. Basic Information

Model: MVME162‑043

Brand: Motorola / Emerson

Form: 6U VME64 single-board computer (SBC)

CPU: MC68LC040 @ 25 MHz (no FPU, has MMU, 8KB Cache) Core differences: No floating point + Single network interface + No SCSI (This is the only absence of SCSI in 04x)

II. Core Hardware Specifications (Compared with 040/041/042)

1) Processor

MC68LC040, 25 MHz

❌ No FPU (no floating-point operation); ✅ Has MMU, 8KB unified cache

Performance: Approximately 15 MIPS, unable to run floating-point algorithms

2) Memory (Same as 040/041/042)

DRAM: 8 MB (parity), maximum 32 MB

SRAM: 512 KB, battery backup

Flash: 1 MB

NVRAM/RTC: 8 KB + real-time clock, battery backup

3) I/O Interfaces (Minimal: Single network, no SCSI)

VMEbus: VME64 A32/D32, master/slave, DMA, system controller

Ethernet: 1×10 Mbps (single network port)

Serial Port: 2×RS-232 (Console + configurable)

SCSI: ❌ Completely removed (the only model without SCSI in the 04x series)

IP Slot: 4×IndustryPack (IP) expansion slots

Parallel Port: 8-bit bidirectional

4) Electrical / Environmental (Same as 040/041/042)

Power Supply: +5 V @ 4 A (low power consumption)

Operating Temperature: 0 ℃ ~ +70 ℃

Size: 6U VME (233 × 160 mm)

III. Ultimate Comparison of MVME162-040/041/042/043 (Plain Text)

040: 68040/25 MHz/has FPU/8MB/double 10M network/has SCSI → standard high-end configuration, dual network redundancy + floating-point

041: 68040/25 MHz/has FPU/8MB/single 10M network/has SCSI → streamlined version, single network + floating-point

042: LC040/25 MHz/no FPU/8MB/single 10M network/has SCSI → economy version, single network + no floating-point

043: LC040/25 MHz/no FPU/8MB/single 10M network/no SCSI → minimalist version, lowest cost, only basic control

IV. Functional Features

Full "No" Configuration: No FPU, no SCSI, only retains the most necessary VME, single network, double serial ports

Minimum Power Consumption / Minimum Cost: Among the 04x series, it is the lowest in price and power consumption

Complete Basic I/O: 4 IP expansion slots are retained, and functions can be supplemented through IP cards

Complete Power-off Protection: SRAM/NVRAM/RTC battery backup

V. Typical Applications

Pure Logic Control: No floating-point, no SCSI storage, single network communication

Low-cost Data Acquisition: IO-intensive, no complex algorithms, strict budget

Replacement of Old Systems: Replace older MVME162-010/012, etc., compatible with VME architecture

VI. Alternatives and Purchasing

Series Replacement:

Need floating-point: 041

Need SCSI: 042

Minimal Cost: 043 (Preferred)

Upgrade Replacement: MVME2700, MVME3100 (PowerPC, Gigabit Network, FPU standard)

Note: 043 is the one with the least stock and the lowest price in the 04x series