ATtiny43U Series

Catalog

IC MCU 8BIT 4KB FLASH 20SOIC

Part	Speed	Data Converters [custom]	Data Converters [custom]	Oscillator Type	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Connectivity	Peripherals	EEPROM Size [custom]	EEPROM Size [custom]	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Package / Case	Package / Case [y]	Package / Case [y]	Program Memory Type	Core Size	Program Memory Size	Number of I/O	RAM Size	Core Processor
Microchip Technology ATTINY43U-SUR	8 MHz	10	4	Internal	20-SOIC	85 °C	-40 °C	Surface Mount	USI	Brown-out Detect/Reset POR PWM Temp Sensor WDT	8	64	1.8 V	5.5 V	20-SOIC	0.295 in	7.5 mm	FLASH	8-Bit	4 KB	16	256 x 8	AVR
Microchip Technology ATTINY43U-MUR	8 MHz	10	4	Internal	20-QFN-EP (4x4)	85 °C	-40 °C	Surface Mount	USI	Brown-out Detect/Reset POR PWM Temp Sensor WDT	8	64	1.8 V	5.5 V	20-WFQFN Exposed Pad			FLASH	8-Bit	4 KB	16	256 x 8	AVR

Catalog

Key Features

- 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).

Description

The high-performance, ultra-low voltage 8-bit AVR® RISC-based microcontroller combines 4 KB 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, internally calibrated oscillator, and three software selectable power saving modes. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching one MIPS per MHz, balancing power consumption and processing speed. [AVR188: Design Guidelines for ATtiny43U](https://www.microchip.com/en-us/application-notes/an8206)