ATmega328P Atmel Corporation, ATmega328P Datasheet - Page 7

• Manufacturer Part Number: ATmega328P
• Manufacturer: Atmel Corporation

Specifications of ATmega328P

• Flash (kbytes): 32 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 23
• Ext Interrupts: 24
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

8271D–AVR–05/11
Table 2-1.
ATmega48A/PA/88A/PA/168A/PA/328/P support a real Read-While-Write Self-Programming
mechanism. There is a separate Boot Loader Section, and the SPM instruction can only execute
from there. In ATmega 48A/48PA there is no Read-While-Write support and no separate Boot
Loader Section. The SPM instruction can execute from the entire Flash.
Device
ATmega88PA
ATmega168A
ATmega168PA
ATmega328
ATmega328P
Memory Size Summary (Continued)
Flash
8KBytes
16KBytes
16KBytes
32KBytes
32KBytes
ATmega48A/PA/88A/PA/168A/PA/328/P
EEPROM
512Bytes
512Bytes
512Bytes
1KBytes
1KBytes
RAM
1KBytes
1KBytes
1KBytes
2KBytes
2KBytes
2 instruction words/vector
2 instruction words/vector
Interrupt Vector Size
1 instruction word/vector
2 instruction words/vector
2 instruction words/vector
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