MCU AVR 8BIT 32KB FLASH 20MHZ 24QFN


Bypass caps, pull-ups, strapping resistors, custom silkscreen & more
Design a Custom BoardThe ATtiny3217 is a 8-bit AVR microcontroller with 32 KB Flash memory, 2 KB SRAM, and 256 bytes EEPROM, running at up to 20 MHz. It features comprehensive peripherals including dual 10-bit ADCs, USART, SPI, I2C, multiple timers, and a Peripheral Touch Controller for capacitive sensing. Ideal for embedded control, IoT devices, and capacitive touch applications requiring low power operation.
This 0.5mm pitch QFN is nearly impossible to hand solder and entirely incompatible with breadboards due to hidden pads beneath the package. A breakout board provides accessible headers and pre-soldered connections, letting you prototype with InvenSense motion sensors via I2C or SPI without specialized SMD equipment or rework skills.
ELECTRICAL CHARACTERISTICS
| Manufacturer | Microchip Technology |
| Part Number | ATTINY3217-MNR |
| Package | QFN-24 (4×4mm) |
| Pin Count | 24 |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Number of I/O | 22 |
| Program Memory Size | 32KB (32K x 8) |
| Speed | 20MHz |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
BILL OF MATERIALS
PCB SPECIFICATIONS