MCU: attiny44
Package: 14-pin PDIP
 1: Vcc
 2: PB0 PCINT8 XTAL1 CLKI
 3: PB1 PCINT9 XTAL2
 4: PB3 dW     !Reset PCINT11
 5: PB2 PCINT10 INT0 OC0A CKOUT
 6: PA7 PCINT7 ICP1 OC0B ADC7
 7: PA6 PCINT6 OC1A SDA MOSI DI ADC6
 8: PA5 ADC5 DO MISO OC1B PCINT5
 9: PA4 ADC4 USCK SCL T1 PCINT4
10: PA3 ADC3 T0 PCINT3
11: PA2 ADC2 AIN1 PCINT2
12: PA1 ADC1 AIN0 PCINT1
13: PA0 ADC0 AREF PCINT0
14: Gnd

Summary:
The high-performance Microchip picoPower 8-bit AVR RISC-based microcontroller
4 KB ISP flash memory with read-while-write capabilities,
256 Byte EEPROM,
256 Byte SRAM,
12 general purpose I/O lines,
32 general purpose working registers,
2  timer/counters (8-bitÁ 16-bit),
4-channel PWM,
1 comparators,
internal and external interrupts,
In-System Programmable via SPI Port,
8+12-channel 10-bit A/D converter,
programmable watchdog timer with internal oscillator,
The device operates between 1.8-5.5 volts.
