Microchip Technology ATTINY3224-XUR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series tinyAVR® 2
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, IrDA, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 12
Program Memory Size 32KB (32K x 8)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 3K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 9x12b
Oscillator Type External, Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 14-TSSOP
Package / Case 14-TSSOP (0.173", 4.40mm Width)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATTINY3224-XUR is an 8-bit AVR microcontroller in a 14-TSSOP package. It offers 32KB flash and 3KB RAM, running at 20MHz. With a 1.8V to 5.5V supply range and integrated PWM, WDT, and brown-out detection, it provides high memory density for advanced embedded applications in a small footprint.

  • 32KB flash enables complex firmware and data logging without external storage.
  • 3KB RAM supports larger buffers and more sophisticated state machines.
  • 14-TSSOP package balances pin count with board space efficiency.
  • Wide voltage range and low-power modes suit battery and energy-harvesting designs.

Advanced IoT Sensors

With 32KB flash and 3KB RAM, it runs complex protocols like Zigbee or custom mesh stacks for environmental monitoring.

Portable Data Loggers

Its large memory stores weeks of sensor readings locally, while low-power modes extend battery life in field deployments.

Motor Control for Drones

The 20MHz core and PWM channels handle BLDC commutation with high resolution for stable flight.

Medical Wearables

In a compact TSSOP-14, it processes ECG or SpO2 signals, storing trends in its 32KB flash.

Smart Agriculture

It manages multi-parameter soil probes, using its RAM for buffering and flash for calibration data.

Human-Machine Interfaces

With enough memory for graphics libraries, it drives small OLED displays in control panels.

Q: How much flash memory does the ATTINY3224-XUR have?
A: It has 32KB of flash (32K x 8 bits), the largest in this series.
Q: What is the RAM size?
A: It includes 3KB of SRAM for data handling.
Q: What is the package type?
A: It is available in a 14-pin TSSOP package (4.40mm width).
Q: What is the operating voltage?
A: It operates from 1.8V to 5.5V.
Base Product Number : ATTINY3224
20MHz 32KB Flash 3KB RAM 8-bit MCU AVR data logging IoT medical Microchip RISC TSSOP-14
Q: How much flash memory does the ATTINY3224-XUR have?
A: It has 32KB of flash (32K x 8 bits), the largest in this series.
Q: What is the RAM size?
A: It includes 3KB of SRAM for data handling.
Q: What is the package type?
A: It is available in a 14-pin TSSOP package (4.40mm width).
Q: What is the operating voltage?
A: It operates from 1.8V to 5.5V.