ATTINY43U-SUR
- Mfr.Part #
- ATTINY43U-SUR
- Manufacturer
- Microchip Technology
- Package / Case
- 20-SOIC (0.295, 7.50mm Width)
- Datasheet
- Download
- Description
- IC MCU 8BIT 4KB FLASH 20SOIC
- Stock
- 3,084
- In Stock :
- 3,084
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Power Supplies :
- 2/5 V
- Number of I/O Lines :
- 16
- Number of Programmable I/O :
- 16
- Min Supply Voltage :
- 2.7 V
- Base Part Number :
- ATtiny43
- Minimum Operating Temperature :
- - 40 C
- Manufacturer :
- Microchip
- Base Product Number :
- ATtiny43
- Product :
- MCU
- Number of Timers/Counters :
- 2
- RAM (bytes) :
- 256
- ROM Programmability :
- Flash
- Brand :
- Microchip Technology
- Program Memory Size :
- 4KB 2K x 16
- Product Status :
- Active
- Length :
- 12.8 mm
- Bit Size :
- 8
- Connectivity :
- USI
- PWM Channels :
- yes
- Number of Terminals :
- 20
- Reach Compliance Code :
- Compliant
- Operating Temperature :
- -40°C~85°C TA
- RoHS :
- Compliant
- Supply Voltage-Max (Vsup) :
- 5.5V
- Mounting Style :
- SMD/SMT
- Data Converter :
- A/D 4x10b
- Number of I/O :
- 16
- Max Supply Voltage :
- 5.5 V
- Speed :
- 8MHz
- Published :
- 1997
- ROM (words) :
- 2048
- RAM Size :
- 256 x 8
- Qualification Status :
- Not Qualified
- Terminal Pitch :
- 1.27 mm
- Data Bus Width :
- 8B
- Mounting Type :
- Surface Mount
- Packaging :
- Tape and Reel (TR)
- Package / Case :
- 20-SOIC (0.295, 7.50mm Width)
- Maximum Operating Temperature :
- + 85 C
- Temperature Grade :
- Industrial
- Core Architecture :
- AVR
- Product Category :
- 8-bit Microcontrollers - MCU
- Number of I/Os :
- 5
- Has ADC :
- yes
- Pbfree Code :
- yes
- Data Converters :
- A/D 4x10b
- CPU Family :
- AVR RISC
- JESD-30 Code :
- R-PDSO-G20
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Surface Mount :
- yes
- Tradename :
- AVR
- Core Processor :
- AVR
- Voltage - Supply (Vcc/Vdd) :
- 1.8V~5.5V
- Width :
- 7.5 mm
- Series :
- AVR® ATtiny
- Terminal Form :
- Gull wing
- Supply Voltage :
- 3V
- Memory Size :
- 1.8kB
- Terminal Position :
- Dual
- Program Memory Type :
- Flash
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Frequency :
- 8MHz
- EEPROM Size :
- 64 x 8
- Lifecycle Status :
- Production (Last Updated: 2 years ago)
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
- RoHS Status :
- ROHS3 Compliant
- Interface :
- SPI
- Core Size :
- 8-Bit
- DMA Channels :
- No
- Supplier Device Package :
- 20-SOIC
- Number of Pins :
- 20
- Product Type :
- 8-bit Microcontrollers - MCU
- Supply Current-Max :
- 7 mA
- Package :
- Tape and Reel (TR);Cut Tape (CT);Digi-Reel®;
- Factory Lead Time :
- 4 Weeks
- Max Operating Temperature :
- 85 °C
- Package Shape :
- RECTANGULAR
- Max Frequency :
- 8 MHz
- Oscillator Type :
- Internal
- Number of Terminations :
- 20
- Min Operating Temperature :
- -40 °C
- Memory Type :
- Flash
- Datasheets
- ATTINY43U-SUR

Microcontrollers Microchip Technology ATTINY43U-SUR Overview
The Microcontrollers Microchip Technology ATTINY43U-SUR, manufactured by Microchip Technology, is a high-performance, low-power AVR® 8-bit microcontroller that combines 4KB of programmable flash memory, 256 bytes of RAM, and 256 bytes of EEPROM in a compact 20-SOIC package. This microcontroller is designed for efficiency and versatility, making it an ideal solution for developers looking to create scalable embedded applications. The ATTINY43U-SUR operates between 1.8-5.5 volts, supporting a wide range of applications from battery-operated devices to industrial controls, offering not only power efficiency but also robustness in demanding environments.
ATTINY43U-SUR Features
The ATTINY43U-SUR boasts an array of features suitable for a diverse range of applications. These include its 10-bit ADC with 11 channels, providing accurate analog to digital conversion; a programmable watchdog timer for system stability; and up to six PWM channels for precise control over motor and light dimming functions. Its high integration allows engineers to minimize external components, reducing system costs and complexity. Moreover, its enhanced power management capabilities ensure optimal consumption across varying operating conditions.
ATTINY43U-SUR Applications
- Consumer Electronics: Utilized in smart home devices, like smart thermostats and lighting systems, where its PWM channels offer precise control over lighting levels and energy management.
- Automotive: Applied in automotive subsystems, such as climate control and dashboard interfaces, leveraging its robust operation range and multiple I/O options.
- Industrial Control: Employed in monitoring sensors and controlling actuators in industrial environments, using its ADC for sensor data integration and flash memory for robust program storage.
- Wearable Technology: Integrated into wearable fitness trackers, where its low power consumption and small form factor are critical for device longevity and comfort.
- Medical Devices: Used in portable medical diagnostics equipment, benefiting from its high reliability and support for complex algorithm implementations necessary for patient monitoring.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















