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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATtiny
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 28
Program Memory Size 8KB (8K x 8)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 512 x 8
Voltage - Supply (Vcc/Vdd) 1.7V ~ 5.5V
Data Converters A/D 28x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 32-TQFP (7x7)
Package / Case 32-TQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATTINY828-AUR is an 8-bit AVR microcontroller delivering 8KB Flash and 512 bytes RAM in a compact 32-TQFP package. Operating from 1.7V to 5.5V at up to 20MHz, it integrates PWM, watchdog timer, and brown-out detection for robust embedded control. Its wide voltage range and industrial temperature rating make it a versatile choice for power-sensitive designs.

  • Ultra-low voltage operation (1.7V) – enables direct battery operation without boost converters.
  • High integration – includes PWM, WDT, and brown-out reset, reducing external component count.
  • Compact 32-TQFP package – saves board space for space-constrained designs.
  • Wide temperature range (-40°C to 85°C) – suitable for industrial environments.

Battery-Powered Sensor Nodes

The 1.7V minimum supply voltage and low-power sleep modes enable long battery life in IoT and remote sensor applications.

Motor Control Systems

With 20MHz speed and PWM channels, it can generate precise control signals for small DC and stepper motors.

LED Lighting Control

PWM outputs allow smooth dimming and color mixing in RGB LED drivers, while the small TQFP package fits tight lighting fixtures.

Industrial Automation

The -40°C to 85°C temperature range and watchdog timer ensure reliable operation in factory floor environments.

Portable Medical Devices

Low power consumption and small footprint make it suitable for glucose meters and pulse oximeters.

Smart Home Controllers

Its I/O count and peripherals support switch, thermostat, and security sensor interfaces.

Q: What is the operating voltage range of the ATTINY828-AUR?
A: The ATTINY828-AUR operates from 1.7V to 5.5V, making it suitable for battery-powered and low-voltage applications.
Q: What is the maximum clock speed?
A: It runs at up to 20MHz, providing a good balance between processing power and power consumption.
Q: How much Flash memory does it have?
A: It features 8KB of in-system programmable Flash memory for code storage.
Q: What package is the ATTINY828-AUR available in?
A: It comes in a 32-TQFP package, ideal for compact PCB designs.
Q: Does it include analog comparators?
A: Yes, it includes an analog comparator along with PWM and watchdog timer peripherals.
Base Product Number : ATTINY828
20MHz 512B RAM 8-bit MCU 8KB Flash ATTINY828 AVR industrial low power motor control PWM sensor TQFP-32 WDT
Q: What is the operating voltage range of the ATTINY828-AUR?
A: The ATTINY828-AUR operates from 1.7V to 5.5V, making it suitable for battery-powered and low-voltage applications.
Q: What is the maximum clock speed?
A: It runs at up to 20MHz, providing a good balance between processing power and power consumption.
Q: How much Flash memory does it have?
A: It features 8KB of in-system programmable Flash memory for code storage.
Q: What package is the ATTINY828-AUR available in?
A: It comes in a 32-TQFP package, ideal for compact PCB designs.
Q: Does it include analog comparators?
A: Yes, it includes an analog comparator along with PWM and watchdog timer peripherals.