ATMEGA328P-AU Atmel, ATMEGA328P-AU Datasheet - Page 563

• Manufacturer Part Number: ATMEGA328P-AU
• Description: MCU AVR 32K FLASH 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA328P-AU

• 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): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Processor Series: ATMEGA32x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 23
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 20MHz
• Total Internal Ram Size: 2KB
• # I/os (max): 23
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 1.8V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 32
• Package Type: TQFP
• Controller Family/series: AVR MEGA
• No. Of I/o's: 23
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Cpu Speed: 20MHz
• Rohs Compliant: Yes
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATMEGA328P-20AU; ATMEGA328P-20AU; Q3790246

8271D–AVR–05/11
22 2-wire Serial Interface .......................................................................... 216
23 Analog Comparator ............................................................................. 248
24 Analog-to-Digital Converter ................................................................ 252
25 debugWIRE On-chip Debug System .................................................. 269
21.5Frame Formats ....................................................................................................208
21.6Data Transfer ......................................................................................................210
21.7AVR USART MSPIM vs. AVR SPI ......................................................................212
21.8Register Description ............................................................................................213
22.1Features ..............................................................................................................216
22.22-wire Serial Interface Bus Definition ..................................................................216
22.3Data Transfer and Frame Format ........................................................................218
22.4Multi-master Bus Systems, Arbitration and Synchronization ...............................220
22.5Overview of the TWI Module ...............................................................................223
22.6Using the TWI ......................................................................................................225
22.7Transmission Modes ...........................................................................................229
22.8Multi-master Systems and Arbitration ..................................................................242
22.9Register Description ............................................................................................243
23.1Overview .............................................................................................................248
23.2Analog Comparator Multiplexed Input .................................................................248
23.3Register Description ............................................................................................249
24.1Features ..............................................................................................................252
24.2Overview .............................................................................................................252
24.3Starting a Conversion ..........................................................................................254
24.4Prescaling and Conversion Timing ......................................................................255
24.5Changing Channel or Reference Selection .........................................................257
24.6ADC Noise Canceler ...........................................................................................258
24.7ADC Conversion Result ......................................................................................263
24.8Temperature Measurement .................................................................................263
24.9Register Description ............................................................................................264
25.1Features ..............................................................................................................269
25.2Overview .............................................................................................................269
25.3Physical Interface ................................................................................................269
25.4Software Break Points .........................................................................................270
25.5Limitations of debugWIRE ...................................................................................270
25.6Register Description ............................................................................................270
ATmega48A/PA/88A/PA/168A/PA/328/P
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