Specs side by side
2 parts compared · 22 differing specs across 22 total parameters.
| Parameter | ||
|---|---|---|
| Operating temperature | - | -40°C~85°C(TA) |
| Voltage - Supply (vcc (vdd)) | - | 1.8V ~ 5.5V |
| Eeprom Size | - | 1K x 8 |
| Program Memory Size | - | 32KB (16K x 16) |
| Program Memory Type | - | FLASH |
| Ram Size | - | 2K x 8 |
| Case | DIP-28 / TQFP-32 / QFN-32 | 32-TQFP |
| Package | - | Tray |
| Component Category | Embedded Microcontrollers (AVR) | - |
| Connectivity | - | I²C, SPI, UART/USART |
| Core Processor | - | AVR |
| Core Size | - | 8-Bit |
| Data Converters | - | A/D 8x10b |
| Market Reality | The ATmega328P is the Arduino-era workhorse that escaped into industry: thousands of instrument, controller and appliance boards still run it, and repair benches re-order it every week. Genuine Microchip supply continues, and the market knows it - which is why relabeled and re-marked stock circulates (the classic tell is a bootloader that reports one signature while the silicon reads another). The two real substitution questions are the ATmega328PB migration (a new device with the same socket, per Microchips own app note) and the smaller-flash siblings that share the pinout. | - |
| Mounting | - | Surface Mount |
| Number Of I (o) | - | 23 |
| Oscillator Type | - | Internal |
| Peripherals | - | Brown-out Detect/Reset, POR, PWM, WDT |
| Role In Circuit | Original Reference Part | - |
| Series | - | AVR® ATmega |
| Sourcing Status | Active Shenzhen Spot Sourcing (24–48h) | - |
| Speed | - | 20MHz |
Parts
- ATmega328P · microchip
- ATMEGA328P-AU · microchip