Microcontroller: STM32F103
Main Crystal: 8.000MHz
Speed: up to 72MHz
Processor Language: ARM
Memory
Program Flash Memory (Internal): 512kBytes
RAM Memory (Internal): 64 kBytes
EEPROM Memory (Internal): None
EEPROM Memory (External): I²C Connection
Input/Ouput
I/O Points Available: 48
I/O Points Connection: Female Header Connector
Clocks
Real Time Clock: Yes
External Back-Up Battery Connection: Yes
A/D
ADC Channels: Yes - 16 Channels
ADC Accuracy: 12-Bits
D/A
DAC Channels: Yes - 2 Channels
DAC Accuracy: 12-Bits
Timers
Timers: Yes - Four General Purpose 16-bit Timers
Basic Timers: Yes - Two
Auxiliary Communication
RS232 Communication: Yes - 1 Channels On-Board, Up to 5 Channels available on CPU
I²C Communication: Yes - 2 Channels
SPI Communication: Yes - 3 Channels
CAN Communication: Yes - 1 Channel
USB Connection: Yes - 1 Channel on CPU
Ancillary Features
In-Circuit Programming: Yes - Via RS232 Connection On-Board
Power-On Led: Yes - Red
Boot Led: Yes
Boot Load Button: Yes
Reset Button: Yes
Power Supply
Power-Supply: 3.3 Vdc
Dimensions
LxWxH: 42mm x 65mm x 60mm
Parts Supplied
Included Parts: ET-STM32 Stamp Module, RS232 Cable, Download Software, Manual on CD, Examples and Sample Code,
Data Sheets on CD.