DE-631 User Manual
Version : 1.10 DUALi Inc.
(http://www.duali.com)
7
2.2
The block diagram of DE-631
STM32F103
(512Kbytes Flash,
64Kbytes SRAM,
84bytes Battery backup SRAM
Power
(DC 7.5 ~ 24V)
(or DC 5V )
Buzzer
RF Control
USB
Antenna
4 * status LEDs
Battery
Tamper switch
RS-232
RS-485
LCD(128*64 graphic)
4 * SAM
Nor Flash
PSRAM
