The high-performance, ultra low-voltage 8-bit AVR RISC-based microcontroller combines 4KB flash memory, 64B EEPROM, 256B SRAM, 16 general purpose I/O lines, 32 general purpose working registers, two 8-bit timer/counters with two PWM channels, internal and external interrupts, a 4-channel 10-bit A/D converter, a universal serial interface (USI), programmable watchdog timer with internal oscillator, internal calibrated oscillator, and three software selectable power saving modes. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

Boost Converter: Built-in boost voltage converter providing 3V to the processor while only requiring between 0.7-1.8 volts from its external power supply (1.8-5.5 volts when the voltage converter is bypassed).

Select all	Attribute	Value
	Brand	Microchip
	Family Name	ATtiny43
	Package Type	SOIC
	Mounting Type	Surface Mount
	Pin Count	20
	Device Core	AVR
	Data Bus Width	8bit
	Program Memory Size	4 kB
	Maximum Frequency	8MHz
	RAM Size	256 B
	Number of PWM Units	1
	Number of SPI Channels	1
	Typical Operating Supply Voltage	5.5 (Maximum) V
	Number of I2C Channels	1
	Number of ADC Units	1
	Length	13mm
	ADCs	1 (4 x 10 bit)
	Instruction Set Architecture	RISC
	Maximum Operating Temperature	+85 °C
	Minimum Operating Temperature	-40 °C
	Program Memory Type	Flash
	Height	2.35mm
	Width	7.6mm
	Dimensions	13 x 7.6 x 2.35mm
	Pulse Width Modulation	1 (2 x 8 bit)

	Select all
	Brand Microchip
	Family Name ATtiny43
	Package Type SOIC
	Mounting Type Surface Mount
	Pin Count 20
	Device Core AVR
	Data Bus Width 8bit
	Program Memory Size 4 kB
	Maximum Frequency 8MHz
	RAM Size 256 B
	Number of PWM Units 1
	Number of SPI Channels 1
	Typical Operating Supply Voltage 5.5 (Maximum) V
	Number of I2C Channels 1
	Number of ADC Units 1
	Length 13mm
	ADCs 1 (4 x 10 bit)
	Instruction Set Architecture RISC
	Maximum Operating Temperature +85 °C
	Minimum Operating Temperature -40 °C
	Program Memory Type Flash
	Height 2.35mm
	Width 7.6mm
	Dimensions 13 x 7.6 x 2.35mm
	Pulse Width Modulation 1 (2 x 8 bit)

Microchip, 8bit AVR, ATtiny43 Microcontroller, 8MHz, 4 kB Flash, 20-Pin SOIC

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