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Product attributes Property Value
Manufacturer Microchip Technology
Product Series tinyAVR® 2
Packaging Tube | NULL
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 18
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 15x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 20-SSOP
Package / Case 20-SSOP (0.209", 5.30mm Width)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATTINY3226-XU is a low-power 8-bit AVR microcontroller in a 20-SSOP package. It provides 32KB Flash and 3KB SRAM, operating from 1.8V to 5.5V at 20MHz. With integrated BOD, POR, PWM, and WDT, it delivers reliable performance in space-constrained, battery-powered designs.

  • Large 32KB Flash: Ample space for complex firmware in small packages.
  • Low-voltage operation: 1.8V minimum extends battery life in portable devices.
  • Compact SSOP-20: Reduces PCB area for miniaturized products.
  • Rich peripheral set: PWM and WDT reduce external component count.
  • Industrial temperature range: Reliable in harsh environments.

Compact Wearable Sensors

The 20-SSOP package and 1.8V operation enable tiny, battery-powered health monitors.

LED Lighting Controllers

32KB Flash allows complex lighting sequences and PWM dimming for smart bulbs.

Automotive Interior Switches

With -40°C to 85°C rating, it handles door lock or window switch inputs reliably.

Industrial Data Loggers

3KB SRAM buffers sensor readings, while WDT ensures long-term unattended operation.

Consumer Toys

Low cost and small size make it ideal for interactive toys with sound and motion.

Power Management Units

5.5V tolerance allows direct monitoring of battery voltage and charge control logic.

Q: What is the Flash size of the ATTINY3226-XU?
A: It has 32KB Flash and 3KB SRAM.
Q: What is the maximum clock frequency?
A: It runs at 20MHz with an AVR core.
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V.
Q: What package is this?
A: It is in a 20-SSOP package.
Q: Does it have safety features?
A: Yes, it includes BOD, POR, PWM, and WDT.
Base Product Number : ATTINY3226
20MHz 32KB Flash 3KB SRAM 8-bit MCU AVR IoT PWM SSOP-20 WDT wearable
Q: What is the Flash size of the ATTINY3226-XU?
A: It has 32KB Flash and 3KB SRAM.
Q: What is the maximum clock frequency?
A: It runs at 20MHz with an AVR core.
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V.
Q: What package is this?
A: It is in a 20-SSOP package.
Q: Does it have safety features?
A: Yes, it includes BOD, POR, PWM, and WDT.