Microchip Technology ATMEGA328P-PN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.88 | $2.88 |
| 15+ | $2.79 | $41.85 |
| 25+ | $2.73 | $68.25 |
| 50+ | $2.58 | $129.00 |
| 100+ | $2.27 | $227.00 |
| N+ | $0.45 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Tube | |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 23 |
| Program Memory Size | 32KB (16K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 1K x 8 |
| RAM Size | 2K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 6x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Through Hole |
| Supplier Device Package | 28-PDIP |
| Package / Case | 28-DIP (0.300", 7.62mm) |
| ROHS |
The ATMEGA328P-PN from Microchip is a high-performance 8-bit AVR microcontroller with 32KB flash and 2KB SRAM. It operates from 1.8V to 5.5V at speeds up to 20MHz, featuring PWM, brown-out detection, and a watchdog timer. The 28-pin DIP package is breadboard-friendly, making it a staple for hobbyist and industrial designs alike.
- Wide Voltage Range: 1.8V-5.5V allows direct battery or regulated 5V supply without level shifting.
- High Temperature Tolerance: Rated to 105°C, suitable for automotive and industrial environments.
- Through-Hole Package: Easy to solder and replace, reducing field service complexity.
- Rich Peripheral Set: PWM, analog comparator, and WDT reduce external component count.
Arduino-Compatible Prototyping
The 28-DIP package and 5V operation make it a drop-in for classic Arduino boards, enabling rapid development of interactive projects.
Automotive Aftermarket Sensors
With a -40°C to 105°C range and 20MHz speed, it handles engine-adjacent monitoring like oil pressure or temperature sensing.
Home Automation Hubs
Its 32KB flash supports Zigbee or custom RF stacks, while 5.5V tolerance simplifies power supply design in mains-powered hubs.
Educational Robotics Kits
The DIP form factor allows students to socket-replace MCUs without soldering, ideal for learning embedded programming.
Industrial Timer/Counters
Built-in PWM and WDT provide reliable timing for conveyor belt controllers or batch counters in harsh environments.
Battery-Powered Data Loggers
At 1.8V operation, it can run directly from two AA cells, logging environmental data to external EEPROM.
- Q: What is the maximum clock speed?
- A: The ATMEGA328P-PN runs at up to 20MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V, compatible with both 3.3V and 5V systems.
- Q: How much flash memory is available?
- A: It has 32KB of flash memory and 2KB of SRAM.
- Q: What package is this?
- A: It is in a 28-pin DIP package, ideal for through-hole prototyping.
- Q: Does it support PWM?
- A: Yes, it includes PWM channels along with brown-out detect and watchdog timer.
- Q: What is the maximum clock speed?
- A: The ATMEGA328P-PN runs at up to 20MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V, compatible with both 3.3V and 5V systems.
- Q: How much flash memory is available?
- A: It has 32KB of flash memory and 2KB of SRAM.
- Q: What package is this?
- A: It is in a 28-pin DIP package, ideal for through-hole prototyping.
- Q: Does it support PWM?
- A: Yes, it includes PWM channels along with brown-out detect and watchdog timer.

ATMEGA328P-PN.pdf