Description
SYS68K/CPU-40B/16 is a high-performance VMEbus single board computer based on the Motorola 68040 microprocessor. Operating at a clock speed of 16 MHz, this board is designed for sophisticated real-time industrial applications, including high-speed data acquisition and complex process control. It integrates advanced memory management and floating-point processing directly on the CPU, providing a robust architecture for multitasking operating systems. The RQAUS1 designation typically refers to a specific hardware revision or customer-specific configuration optimized for reliability in harsh telecommunications or military-grade environments.
Technical Specifications
- Model Number: SYS68K/CPU-40B/16
- Microprocessor: Motorola MC68040
- Clock Speed: 16 MHz
- Bus Architecture: VMEbus (A32/D32)
- Onboard RAM: 4 MB to 16 MB DRAM (Revision dependent)
- Flash/EPROM: Sockets for system firmware and user applications
- I/O Interfaces: Dual Serial Ports (RS-232/RS-422), SCSI Interface, and Parallel I/O
- Interrupts: 7-level VMEbus interrupt handler
- Operating Temperature: 0°C to 55°C (Standard)
- Revision Code: RQAUS1
The SYS68K/CPU-40B/16 serves as a powerful engine for legacy VME systems, delivering deterministic performance and high-speed data throughput via its dedicated local bus architecture and efficient interrupt handling mechanisms.
Model Comparison: SYS68K/CPU-40B/16 vs. Similar Models
The primary difference between the SYS68K/CPU-40B/16 and other boards in the CPU-40 series is the processor clock speed and memory density. While the CPU-40B/25 or CPU-40B/33 offer higher raw processing power, the 16 MHz version is often selected for its lower power consumption and reduced thermal signature in enclosed racks. Compared to the older SYS68K/CPU-30 series (which uses the 68030), the CPU-40B provides a significant performance leap due to the 68040’s integrated caches and optimized instruction pipeline. Additionally, the RQAUS1 variant differs from standard commercial releases by incorporating specific hardware modifications or firmware bios versions required for specialized “RQ” series rack configurations, ensuring timing compatibility that generic VME boards may lack.
