ATtiny43U

ATtiny43U
ATtiny43U
# of Pins	20
Operating Voltage	1.8 to 5.5 V (4 MHz) 2.7 to 5.5 V (8 MHz)
CPU	8-bit RISC
Clock Speed	4 MHz or 8 MHz (selectable)
Flash	4 KB
SRAM	256 B
EEPROM	64 B
Max I/O	16
Packages	SOIC-20 QFN-20
Datasheets	Summary (PDF) Complete (PDF)

ATtiny43U is an ultra low-voltage picoPower microcontroller in the Atmel AVR family. It is available in either the 20-pin SOIC or the 20-pin QFN package with a 4 or 8 MHz selectable clock speed. Running higher clock speeds require higher minimum operating voltages, with 1.8 volts for 4 MHz and 2.7 volts for 8 MHz.

The ATtiny43U has the following features:

• 8 touch channels
• 1 SPI
• 1 I2C
• 10-bit with 4 channels
• 1 analog comparator
• temperature sensor
• 2 timers
• 4 PWM
• internal RC oscillator
• watchdog