ATTINY43U-MU
- Mfr.Part #
- ATTINY43U-MU
- Manufacturer
- Microchip Technology
- Package / Case
- 20-WFQFN Exposed Pad
- Datasheet
- Download
- Description
- IC MCU 8BIT 4KB FLASH 20QFN
- Stock
- 4,231
- In Stock :
- 4,231
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- ROM Programmability :
- Flash
- Min Supply Voltage :
- 2.7 V
- Device Core :
- AVR
- Package / Case :
- 20-WFQFN Exposed Pad
- Number of Programmable I/O :
- 16
- Number of I/O Lines :
- 16
- Packaging :
- Tray
- Terminal Position :
- QUAD
- Reach Compliance Code :
- Compliant
- Manufacturer :
- Microchip
- Core Architecture :
- AVR
- RAM Size :
- 256 x 8
- Mount :
- Surface Mount
- Frequency :
- 8MHz
- ROM (words) :
- 4096
- Temperature Grade :
- Industrial
- Factory Lead Time :
- 7 Weeks
- Core Size :
- 8-Bit
- Terminal Form :
- NO LEAD
- Oscillator Type :
- Internal
- Product Type :
- 8-bit Microcontrollers - MCU
- EEPROM Size :
- 64 x 8
- Max Supply Voltage :
- 5.5 V
- RoHS :
- Compliant
- Number of SPI Channels :
- 1
- Length :
- 4mm
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Voltage - Supply (Vcc/Vdd) :
- 1.8V~5.5V
- Bit Size :
- 8
- Surface Mount :
- yes
- Data Converter :
- A/D 4x10b
- Supply Voltage :
- 3V
- Mounting Type :
- Surface Mount
- Product Category :
- 8-bit Microcontrollers - MCU
- Maximum Operating Temperature :
- + 85 C
- REACH SVHC :
- No SVHC
- Number of Pins :
- 20
- Tradename :
- AVR
- Supply Voltage-Max (Vsup) :
- 5.5V
- Interface Type :
- SPI
- Number of I/O :
- 16
- Interfaces :
- SPI/USI
- Product Status :
- Active
- RoHS Status :
- ROHS3 Compliant
- Lifecycle Status :
- Production (Last Updated: 2 years ago)
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
- Connectivity :
- USI
- Width :
- 4mm
- Package Shape :
- Square
- DMA Channels :
- No
- Schedule B :
- 8542310000, 8542310000/8542310000/8542310000/8542310000, 8542310000/8542310000/8542310000/8542310000/8542310000, 8542310000/8542310000/8542310000/8542310000/8542310000/8542310000
- Data Bus Width :
- 8B
- Core Processor :
- AVR
- Max Frequency :
- 8 MHz
- PWM Channels :
- yes
- JESD-30 Code :
- S-PQCC-N20
- Number of Terminals :
- 20
- Min Operating Temperature :
- -40 °C
- Termination :
- SMD/SMT
- Number of Timers/Counters :
- 2
- Memory Size :
- 4kB
- Brand :
- Microchip Technology
- Interface :
- SPI
- Number of Terminations :
- 20
- Data Converters :
- A/D 4x10b
- Program Memory Size :
- 4KB 2K x 16
- Product :
- MCU
- Minimum Operating Temperature :
- - 40 C
- Number of I2C Channels :
- 1
- Terminal Pitch :
- 0.5mm
- Speed :
- 8MHz
- Has ADC :
- yes
- RAM (bytes) :
- 256
- Number of ADC Channels :
- 4
- Qualification Status :
- Not Qualified
- Max Operating Temperature :
- 85 °C
- Base Product Number :
- ATtiny43
- Power Supplies :
- 2/5 V
- Memory Type :
- Flash
- Mounting Style :
- SMD/SMT
- Density :
- 32 kb
- Height :
- 750μm
- CPU Family :
- AVR RISC
- Pbfree Code :
- yes
- Package :
- Tray
- Number of I/Os :
- 16
- Operating Temperature :
- -40°C~85°C TA
- Base Part Number :
- ATtiny43
- Contact Plating :
- Tin
- Published :
- 1997
- Number of PWM Channels :
- 2
- Program Memory Type :
- Flash
- Series :
- AVR® ATtiny
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Supplier Device Package :
- 20-QFN-EP (4x4)
- Datasheets
- ATTINY43U-MU

Microcontrollers Microchip Technology ATTINY43U-MU Overview
The ATTINY43U-MU by Microchip Technology stands out in the Microcontrollers category with its robust functionality tailored for sophisticated applications requiring compact, yet powerful microcontroller units (MCUs). This 8-bit MCU, housed in a 20QFN package, offers a perfect blend of power efficiency and processing capability, making it an ideal choice for developers aiming to enhance their product's performance with reliable, high-quality components from a trusted manufacturer. The integration of 4KB of flash memory provides ample space for program storage, facilitating complex operations in constrained environments. Its versatility and efficiency make the Microchip Technology ATTINY43U-MU a top contender for bulk purchases by businesses seeking advanced solutions in microcontroller technology.
ATTINY43U-MU Features
The ATTINY43U-MU is equipped with several features that ensure superior performance across a variety of applications. Key features include an 8-bit AVR processor core, 4KB of flash memory, and various power-saving modes which enhance the efficiency of battery-powered devices. The MCU also supports a wide range of operating voltages from 1.8V to 5.5V, providing flexibility in different power environments. Additional functionalities such as its advanced RISC architecture, ample GPIOs (General Purpose Input/Output) for interface flexibility, and built-in ADC (Analog to Digital Converter) make it highly suitable for both simple and complex electronic setups.
ATTINY43U-MU Applications
- Consumer Electronics: Utilized in portable gadgets like smartwatches or fitness trackers, the ATTINY43U-MU manages device operations efficiently, offering robust performance while optimizing battery life.
- Home Automation: In smart home devices such as lighting systems and thermostats, this MCU provides the necessary control and connectivity to handle user inputs and automate processes smoothly.
- Industrial Control: The ATTINY43U-MU can be integrated into control systems for sensors and actuators, ensuring reliable operation in harsh industrial environments with its robust design and wide voltage range.
- Medical Devices: Used in wearable health monitors, the microcontroller processes signals and data accurately, facilitating continuous health tracking with reliability and precision.
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.
















