Features:

ATmega328P
Flash (Kbytes): 32
Pin Count: 32
Max. Operating Frequency: 20
CPU: 8-bit AVR
# of Touch Channels: 16
Hardware QTouch Acquisition: No
Max I/O Pins: 23
Ext Interrupts: 24
USB Speed: No
USB Interface: No
SPI: 2
TWI (I2C): 1
UART: 1
CAN: 0
LIN: 0
Ethernet: 0
Graphic LCD: No
Video Decoder: No
Camera Interface: No
ADC channels: 8
ADC Resolution (bits): 10
ADC Speed (ksps): 15
Analog Comparators: 1
Resistive Touch Screen: No
DAC Resolution (bits): 0
Temp. Sensor: Yes
Crypto Engine: No
SRAM (Kbytes): 2
EEPROM (Bytes): 1024
Self Program Memory: YES
External Bus Interface: 0
DRAM Memory: No
NAND Interface: No
picoPower: Yes
Temp. Range (deg C): -40 to 85
I/O Supply Class: 1.8 to 5.5
Operating Voltage (Vcc): 1.8 to 5.5
FPU: No
MPU / MMU: no / no
Timers: 3
Output Compare channels: 6
Input Capture Channels: 1
PWM Channels: 6
32kHz RTC: Yes
Calibrated RC Oscillator: Yes
Watchdog: Yes
Packages: MLF (VQFN) 32M1-A 32,PDIP 28P3 28,TQFP 32A 32
 

Dataheet: Download Datasheet