ATMEGA328P-AU Atmel, ATMEGA328P-AU Datasheet - Page 562

MCU AVR 32K FLASH 32TQFP

ATMEGA328P-AU

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
8271C–AVR–08/10
21 2-wire Serial Interface .......................................................................... 215
22 Analog Comparator ............................................................................. 247
23 Analog-to-Digital Converter ................................................................ 251
24 debugWIRE On-chip Debug System .................................................. 268
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
20.6Data Transfer ......................................................................................................209
20.7AVR USART MSPIM vs. AVR SPI ......................................................................211
20.8Register Description ............................................................................................212
21.1Features ..............................................................................................................215
21.22-wire Serial Interface Bus Definition ..................................................................215
21.3Data Transfer and Frame Format ........................................................................217
21.4Multi-master Bus Systems, Arbitration and Synchronization ...............................219
21.5Overview of the TWI Module ...............................................................................222
21.6Using the TWI ......................................................................................................224
21.7Transmission Modes ...........................................................................................228
21.8Multi-master Systems and Arbitration ..................................................................241
21.9Register Description ............................................................................................242
22.1Overview .............................................................................................................247
22.2Analog Comparator Multiplexed Input .................................................................247
22.3Register Description ............................................................................................248
23.1Features ..............................................................................................................251
23.2Overview .............................................................................................................251
23.3Starting a Conversion ..........................................................................................253
23.4Prescaling and Conversion Timing ......................................................................254
23.5Changing Channel or Reference Selection .........................................................256
23.6ADC Noise Canceler ...........................................................................................257
23.7ADC Conversion Result ......................................................................................262
23.8Temperature Measurement .................................................................................262
23.9Register Description ............................................................................................263
24.1Features ..............................................................................................................268
24.2Overview .............................................................................................................268
24.3Physical Interface ................................................................................................268
24.4Software Break Points .........................................................................................269
24.5Limitations of debugWIRE ...................................................................................269
24.6Register Description ............................................................................................269
v

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