Description
Motorola MVME187-034B
Technical Specifications
- Version Identifier: “B” revision hardware.
- Core: MC88100 MPU with updated CMMU stepping.
- Memory: ECC DRAM with improved timing margins.
Functional Features
- Enhanced Stability: Reduced susceptibility to power supply ripple.
- Drop-In Replacement: Pin-compatible and software-compatible with the MVME187-034A.
- Improved Thermal Profile: Optimized component placement for better airflow.
Application Scenarios
Spare parts for existing MVME187-034A systems and new installations requiring the latest hardware revision.
Performance Parameters
- MTBF: Statistically higher than the 034A revision.
- EMC: Improved electromagnetic compatibility margins.
Material Composition
Upgraded passive components with tighter tolerance specifications.
Structural Characteristics
Visually identical to the 034A; differentiation is via silkscreen revision codes or barcode labels.
Working Principle
Identical operational logic to the 034A, with internal signal routing optimized for reduced crosstalk.
Installation Requirements
Direct replacement; no chassis or backplane modifications required.
Usage Precautions
When stocking spares, prefer the “B” revision for enhanced longevity. Run a full system diagnostic after installation.




