Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

ATtiny43U

Status: In Production

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).
View More
Overview
Documents
Development Environment
Similar Devices
RoHS Information
Add To Cart

Device Overview

Summary

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.

AVR188: Design Guidelines for ATtiny43U

Additional 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).
Parametrics
Name
Value
Program Memory Type
Flash
Program Memory Size (KB)
4
CPU Speed (MIPS/DMIPS)
8
SRAM (KB)
256
Data EEPROM/HEF (bytes)
64
Digital Communication Peripherals
1-SPI, 1-I2C
Capture/Compare/PWM Peripherals
4PWM
Timers
2 x 8-bit
Number of Comparators
1
Temperature Range (°C)
-40 to 85
Operating Voltage Range (V)
0.7 to 5.5
Pin Count
20
Low Power
Yes

Documents

Jump to:

Application Notes

Download All

Development Environment

  • Integrated Development Environments
  • Emulators & Debuggers
  • Programmers
  • Demo & Evaluation Boards
Integrated Development Environments
Atmel-Studio
Atmel Studio IDE ( Atmel-Studio )

Studio 7 is the integrated development platform (IDP) for developing and debugging all AVR® and SAM microcontroller applications. The Atmel Studio 7 IDP gives you a seamless and easy-to-use environment to write, build and debug your applications written in C/C++ or assembly code. It also connects seamlessly to the debuggers, programmers and development kits that support AVR® and SAM...

Learn More
MPLAB-X-IDE
MPLAB X Integrated Development Environment (IDE) ( MPLAB-X-IDE )

MPLAB® X Integrated Development Environment (IDE) is an expandable, highly configurable software program that incorporates powerful tools to help you discover, configure, develop, debug and qualify embedded designs for most of Microchip’s microcontrollers, microprocessors and digital signal controllers.
MPLAB X IDE works seamlessly with the MPLAB development ecosystem of

...

Learn More
Emulators & Debuggers
MPLAB PICkit 4 In-Circuit Debugger
MPLAB PICkit 4 In-Circuit Debugger ( PG164140 )

Fast programming, increased functionality, at the same price as its predecessor, the PICkit™ 3.

The MPLAB PICkit 4 now has Programmer-to-Go functionality for 8-bit, 16-bit and 32-bit PIC MCUs and dsPICs and also SAM MCU devices . The firmware update comes with MPLAB X IDE v5.30. AVR is expected soon!


The MPLAB® PICkit™ 4 In-Circuit

...

Learn More
Add To Cart
Atmel-ICE Full Kit
Atmel-ICE Full Kit ( ATATMEL-ICE )

Atmel-ICE is a powerful development tool for debugging and programming ARM® Cortex®-M based SAM and AVR microcontrollers with on-chip debug capability.

Atmel-ICE supports:

  • Programming and on-chip debugging of all AVR 32-bit MCUs on both JTAG and aWire interfaces
  • Programming and on-chip debugging of all AVR
...

Learn More
Add To Cart
MPLAB(R) Snap In-Circuit Debugger
MPLAB(R) Snap In-Circuit Debugger ( PG164100 )

Our most affordable debugger has power to impress.

The MPLAB® Snap In-Circuit Debugger/Programmer allows affordable, fast and easy debugging and programming of PIC®, dsPIC®, AVR and SAM flash MCUs, using the powerful graphical user interface of MPLAB X Integrated Development Environment (IDE) version 5.05 or later. The MPLAB Snap can be connected to a computer using a

...

Learn More
Add To Cart
Programmers
MPLAB PICkit 4 In-Circuit Debugger
MPLAB PICkit 4 In-Circuit Debugger ( PG164140 )

Fast programming, increased functionality, at the same price as its predecessor, the PICkit™ 3.

The MPLAB PICkit 4 now has Programmer-to-Go functionality for 8-bit, 16-bit and 32-bit PIC MCUs and dsPICs and also SAM MCU devices . The firmware update comes with MPLAB X IDE v5.30. AVR is expected soon!


The MPLAB® PICkit™ 4 In-Circuit

...

Learn More
Add To Cart
Atmel-ICE Full Kit
Atmel-ICE Full Kit ( ATATMEL-ICE )

Atmel-ICE is a powerful development tool for debugging and programming ARM® Cortex®-M based SAM and AVR microcontrollers with on-chip debug capability.

Atmel-ICE supports:

  • Programming and on-chip debugging of all AVR 32-bit MCUs on both JTAG and aWire interfaces
  • Programming and on-chip debugging of all AVR
...

Learn More
Add To Cart
MPLAB(R) Snap In-Circuit Debugger
MPLAB(R) Snap In-Circuit Debugger ( PG164100 )

Our most affordable debugger has power to impress.

The MPLAB® Snap In-Circuit Debugger/Programmer allows affordable, fast and easy debugging and programming of PIC®, dsPIC®, AVR and SAM flash MCUs, using the powerful graphical user interface of MPLAB X Integrated Development Environment (IDE) version 5.05 or later. The MPLAB Snap can be connected to a computer using a

...

Learn More
Add To Cart
Demo & Evaluation Boards
ATmega168PB-XMINI
ATmega168PB-XMINI ( ATMEGA168PB-XMINI )

The ATmega168PB Xplained Mini evaluation kit is a hardware platform for evaluating the ATmega168PB microcontroller. The evaluation kit comes with a fully-integrated debugger that provides seamless integration with Atmel Studio. The kit provides access to the features of the ATmega168PB enabling easy integration of the device in a custom design.

Learn More
Add To Cart
Power Debugger kit
Power Debugger kit ( ATPOWERDEBUGGER )

Power Debugger is a powerful development tool for debugging and programming AVR microcontrollers using UPDI, JTAG, PDI, debugWIRE, aWire, TPI or SPI target interfaces and ARM® Cortex®-M based SAM microcontrollers using JTAG or SWD target interfaces.

In addition the Power Debugger has two independent current sensing channels for measuring and optimizing the power consumption of

...

Learn More
Add To Cart
ATSTK600 Kit
ATSTK600 Kit ( ATSTK600 )

A complete starter kit and development system for the 8-bit and 32-bit AVR microcontrollers that gives designers a quick start to develop code on the AVR, with advanced features for prototyping and testing new designs.

The AVR device connects to the STK600 using an innovative routing and socketcard sandwich system, which routes the signals from the device to the appropriate...

Learn More
Add To Cart

Similar Devices

Product
Pins
Flash (KB)
RAM (B)
Price 5K
Notes
20
4
256
$1.36
 

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
ATTINY43U-MU
0.037100
0.036735
20
WQFN
4x4x0.8mm
Matte Tin
e3
ATTINY43U-MUR
0.037100
0.123333
20
WQFN
4x4x0.8mm
Matte Tin
e3
ATTINY43U-SU
0.542000
0.973684
20
SOIC
.300in
Matte Tin
e3
ATTINY43U-SUR
0.542000
0.311875
20
SOIC
.300in
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

Buy from the Microchip Store

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy