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MOTOROLA MVME133SA-20A｜VMEbus 32-bit Single Board Computer｜

MOTOROLA MVME133SA-20A｜VMEbus 32-bit Single Board Computer｜illustration

1. Processor and Operations
Main processor: MC68020 32-bit microprocessor, with a main frequency of 20MHz
Floating point coprocessor: MC68882 (20MHz), with strong floating-point computing capabilities
Local memory: 1MB 32-bit wide DRAM, accessible through VMEbus
Non volatile storage: 4 28 pin JEDEC slots, supporting up to 256KB EPROM/EEPROM (dual 16 bit group)
2. Communication and Interface
VMEbus: System controller function, 3-level arbiter, single level bus request (jumper optional), supports 7-level interrupts
Serial port (3 channels):
1 x DB25 RS-232C debugging port (MC68901 MFP)
2 × Z85C30 multi protocol serial ports: Port A (RS-422/485), Port B (RS-232C), supporting synchronous/asynchronous
Timer/watchdog: 3 8-bit programmable timers, supporting tick and watchdog functions
Real time clock: MM58274A calendar clock (RTC)
Front panel: Run/Stop/Fault LED, RESET/Abort buttons, supports remote reset (P2 edge connector)
3. Electrical and Environmental
Power supply: VMEbus standard+5V DC
Working temperature: Industrial grade 0 ℃~+60 ℃ (wide temperature version -40 ℃~+85 ℃)
Storage temperature: -40 ℃ to+85 ℃
Size: Standard VME double height and single width (approximately 160 × 233mm)
Function
High performance real-time processing
32-bit MC68020+floating-point coprocessor, meeting the requirements of complex control algorithms and high-speed data processing, compatible with real-time operating systems such as VxWorks, pSOS, VRTX, etc.
Rich I/O and bus capabilities
3-channel serial port+VMEbus main control, can directly connect to on-site instruments PLC、 Motion controller, building a distributed control system.
Industrial grade reliability
Designed with wide temperature range, watchdog, hardware interrupt, and remote reset, it meets the long-term stable operation requirements of harsh industrial environments.
High compatibility
Compatible with MVME133, MVME133A, and MVME133S series, it can be directly replaced and upgraded to protect existing system investments.