ATTINY43U-SU
- Mfr.Part #
- ATTINY43U-SU
- Manufacturer
- Microchip Technology
- Package / Case
- 20-SOIC (0.295, 7.50mm Width)
- Datasheet
- Download
- Description
- IC MCU 8BIT 4KB FLASH 20SOIC
- Stock
- 4,903
- In Stock :
- 4,903
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- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Product :
- MCU
- Mount :
- Surface Mount
- Number of I/Os :
- 16
- Program Memory Type :
- Flash
- Terminal Form :
- Gull wing
- Data Converters :
- A/D 4x10b
- Operating Temperature Classification :
- Industrial
- Number of Terminals :
- 20
- Product Category :
- 8-bit Microcontrollers - MCU
- Interface :
- SPI
- Max Frequency :
- 8 MHz
- Number of Timers - General Purpose :
- 2
- Frequency :
- 8MHz
- Memory Type :
- Flash
- REACH SVHC :
- No SVHC
- Length :
- 13mm
- Number of Timers/Counters :
- 2
- Qualification Status :
- Not Qualified
- Core Architecture :
- AVR
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Operating Supply Voltage (Typ) :
- 2.5/3.3/5(V)
- ROM Programmability :
- Flash
- CPU Family :
- AVR RISC
- Device Core Size :
- 8(b)
- JESD-30 Code :
- R-PDSO-G20
- Operating Temperature (Max) :
- 85C
- Number of I/O :
- 16
- Has ADC :
- yes
- Number of Programmable I/O :
- 16
- Voltage - Supply (Vcc/Vdd) :
- 1.8V~5.5V
- Maximum Operating Temperature :
- +85 °C
- Temperature Grade :
- Industrial
- Width :
- 7.6mm
- Program Memory Size :
- 4KB 2K x 16
- PWM Channels :
- yes
- Package Shape :
- RECTANGULAR
- RAM (bytes) :
- 256
- Operating Temperature :
- -40°C~85°C TA
- Interface Type :
- SPI/USI
- Mounting :
- Surface Mount
- Product Type :
- 8-bit Microcontrollers - MCU
- Dimensions :
- 13 x 7.6 x 2.35mm
- Series :
- AVR® ATtiny
- Number of Pins :
- 20
- Operating Temp Range :
- -40C to 85C
- Manufacturer :
- Microchip
- Height :
- 2.35mm
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
- Supplier Device Package :
- 20-SOIC
- Mounting Type :
- Surface Mount
- Number of Terminations :
- 20
- Max Supply Voltage :
- 5.5 V
- Operating Supply Voltage (Max) :
- 5.5(V)
- Contact Plating :
- Tin
- RoHS Status :
- ROHS3 Compliant
- Reach Compliance Code :
- Compliant
- Connectivity :
- USI
- Surface Mount :
- yes
- Package :
- Tube
- ROM (words) :
- 4096
- Min Operating Temperature :
- -40 °C
- Package / Case :
- 20-SOIC (0.295, 7.50mm Width)
- Operating Supply Voltage (Min) :
- 1.8(V)
- Clock Freq :
- 8(MHz)
- Min Supply Voltage :
- 2.7 V
- Core Processor :
- AVR
- Data Converter :
- A/D 4x10b
- Terminal Position :
- Dual
- Packaging :
- Tube
- Factory Lead Time :
- 4 Weeks
- Pbfree Code :
- yes
- RoHS :
- Compliant
- Family Name :
- ATtiny43
- Base Product Number :
- ATtiny43
- Interfaces :
- SPI/USI
- Bit Size :
- 8
- Operating Temperature (Min) :
- -40C
- Mounting Style :
- SMD/SMT
- Brand :
- Microchip Technology
- Data Bus Width :
- 8B
- Device Core :
- AVR
- Package Type :
- SOIC W
- RAM Size :
- 256 x 8
- Oscillator Type :
- Internal
- Speed :
- 8MHz
- Base Part Number :
- ATtiny43
- Number of I/O Lines :
- 16
- Number of ADC Channels :
- 4
- Lifecycle Status :
- Production (Last Updated: 2 years ago)
- Product Status :
- Active
- Number of PWM Channels :
- 2
- Number of I2C Channels :
- 1
- Typical Operating Supply Voltage :
- 5.5 (Maximum) V
- Power Supplies :
- 2/5 V
- Tradename :
- AVR
- Max Operating Temperature :
- 85 °C
- Core Size :
- 8-Bit
- Rad Hardened :
- No
- Published :
- 1997
- Minimum Operating Temperature :
- -40 °C
- # I/Os (Max) :
- 16
- Memory Size :
- 4kB
- Terminal Pitch :
- 1.27 mm
- Instruction Set Architecture :
- RISC
- DMA Channels :
- No
- Programmable :
- yes
- Total Internal Ram Size :
- 256B(kB)
- Pin Count :
- 20
- Moisture Sensitivity Level (MSL) :
- 2 (1 Year)
- EEPROM Size :
- 64 x 8
- Number of SPI Channels :
- 1
- Datasheets
- ATTINY43U-SU
ATTINY43U-SU Documents

Microcontrollers Microchip Technology ATTINY43U-SU Overview
The ATTINY43U-SU by Microchip Technology is a robust microcontroller unit (MCU) that combines efficiency and versatility in a compact SOIC-20 package. This 8-bit MCU is engineered to provide a seamless balance of performance and power consumption, making it ideal for a variety of industrial and consumer applications. Featuring a 4KB flash memory, the ATTINY43U-SU is perfect for applications requiring small form factor and significant data handling capabilities without the need for external memory solutions. The integration of high-performance and low-power functionalities in the Microcontrollers Microchip Technology ATTINY43U-SU makes it a prime choice for developers and engineers looking for reliable MCUs for mass production.
ATTINY43U-SU Features
The ATTINY43U-SU microcontroller offers a range of features designed to support complex digital functionalities while maintaining low power consumption. Key features include 4KB of in-system programmable flash, a robust set of I/O options, and multiple sleep modes to reduce power during idle times. Additionally, its enhanced peripheral set supports advanced control applications, further extending its usability across various industries.
ATTINY43U-SU Applications
- Consumer Electronics: Can be integrated into portable devices such as wearables and smart remotes, providing efficient power management and responsive user interface controls.
- Home Automation: Ideal for smart home devices like thermostats and lighting controls, where its small size and energy efficiency are critical for continuous operation.
- Industrial Control: Due to its robust I/O capabilities, the ATTINY43U-SU is well-suited for industrial automation tasks, including sensor monitoring and motor control systems.
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