The ATMEGA328P-15AZ is a high-performance, low-power Microchip picoPower® 8-bit AVR® RISC-based microcontroller. This compact microcontroller combines 32KB ISP flash memory with read-while-write capabilities, 1KB EEPROM, 2KB SRAM, 23 general-purpose I/O lines, 32 general-purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts, a serial programmable USART, a byte-oriented 2-wire serial interface, SPI serial port, a 6-channel 10-bit A/D converter (8 channels in TQFP and QFN/MLF packages), programmable watchdog timer with internal oscillator, and five software selectable power saving modes. The device operates between 1.8-5.5 volts.
Key Features
- High performance, low power Atmel® AVR® 8-bit microcontroller
- Advanced RISC architecture
- 131 powerful instructions – most single clock cycle execution
- 32 x 8 general purpose working registers
- Fully static operation
- Up to 20 MIPS throughput at 20MHz
- On-chip 2-cycle multiplier
Memory
- 32KB of in-system self-programmable flash program memory
- 1KB EEPROM
- 2KB SRAM
- Write/erase cycles: 10,000 flash/100,000 EEPROM
- Data retention: 20 years at 85°C/100 years at 25°C(1)
I/O and Packages
- 23 programmable I/O lines
- 40-pin PDIP, 32-pin QFN/MLF, and 28-pin PDIP
Temperature Range:
- Industrial (-40°C to +85°C)
Speed Grade
- ATmega328P: 0 - 20 MHz @ 1.8 - 5.5V
Power Consumption at 1MHz, 1.8V, 25°C
- Active mode: 0.2 mA
- Power-down mode: 0.1 μA
- Power-save mode: 0.75 μA (including 32 kHz RTC)
The ATMEGA328P-15AZ is suitable for a wide range of applications, including automation, consumer electronics, and battery-operated devices due to its power efficiency and computing capability. It is also the microcontroller found at the heart of the Arduino Uno, making it a popular choice for hobbyists and educators in the field of electronics and programming.
