The modular concept of the SMART2 system allows configuration flexibility through the

use of a selection of plug-in modules.The CPU, equipped with either 512 kBytes DRAM or 1.5 MBytes DRAM, must exist in a SMART2 system and can be configured with one of the plug-in fieldbus modules.

OEM customers may wish to take advantage of the open-specification of the CPU for custom-specific projects.


Model : MC68LC302
Frequency : 20MHz
SM2-CPU-512 : 512 kByte DRAM
SM2-CPU-1.5 : 1.5 MByte DRAM
FLASH : 1 MByte
EEPROM : 2 kbit
SRAM : 256 kByte (data retention via Goldcap)
RS232 : Modem compatible serial interface (embedded)

Serial interface available on screw-terminal

SPI/SPC : Local I/O bus
CMI : Common Memory Interface for fieldbus modules
Real-Time Clock : V3021 with year, month,week, day, hour, min, sec.
LEDs : CPU Error (red)

+5V Power (green permanent)

Bootstrap loader enabled (green flashing)

Power Cons. : 650mW (typ.); 1W (max.)
Weight : 52g
Temp. Ranges : 0ºC to +70ºC

-40ºC to +85ºC (opt. E2)

-55ºC to +85ºC (storage)

Humidity : 5% to 95% non-condensing