eBay

TQFP32 ATmega328P chips as used in various Arduinos as well as other real-world applications.

The part numbers are ATmega328P U-TH and ATmega328P U-PH; they are equivalent to ATmega328P-AU.

Microcontroller core: 8-bit AVR RISC
Operating voltage range: 1.8V to 5.5V
Maximum CPU clock speed: 20 MHz
Flash memory: 32KB
SRAM: 2KB
EEPROM: 1KB
Digital I/O pins: 23 (of which 6 provide PWM output)
Analog input pins: 6
UART, SPI, and I2C interfaces
10-bit ADC with 6 channels
Watchdog timer
Brown-out detection circuitry
JTAG interface for on-chip debugging

Delivery

Orders will be dispatched within one business day, using recycled packaging wherever viable.

By default, all orders are dispatched by Royal Mail Second Class/RM48. If your order is needed urgently, you are encouraged to select an upgraded postage option, such as First Class/RM24 or Royal Mail Special Delivery, during checkout.

Some areas of the UK have experienced a degraded level of service from the Royal Mail, with deliveries as infrequently as once per week or worse. If you are currently affected by this, please contact me before ordering to discuss the possibility of using an alternative courier service.