ATMEGA328P-AU Atmel, ATMEGA328P-AU Datasheet - Page 301

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

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27.4
27.5
8271C–AVR–08/10
Calibration Byte
Page Size
Table 27-10. Device ID
The ATmega48A/48PA/88A/88PA/168A/168PA/328/328P has a byte calibration value for the
Internal RC Oscillator. This byte resides in the high byte of address 0x000 in the signature
address space. During reset, this byte is automatically written into the OSCCAL Register to
ensure correct frequency of the calibrated RC Oscillator.
Table 27-11. No. of Words in a Page and No. of Pages in the Flash
Table 27-12. No. of Words in a Page and No. of Pages in the EEPROM
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
Part
ATmega168PA
ATmega328
ATmega328P
Device
ATmega48A
ATmega48PA
ATmega88A
ATmega88PA
ATmega168A
ATmega168PA
ATmega328
ATmega328P
Device
ATmega48A
ATmega48PA
ATmega88A
ATmega88PA
(32K bytes)
(32K bytes)
Flash Size
16K words
16K words
(4K bytes)
(4K bytes)
(8K bytes)
(8K bytes)
(16K bytes)
(16K bytes)
2K words
2K words
4K words
4K words
8K words
8K words
EEPROM
256 bytes
256 bytes
512 bytes
512 bytes
Size
Page Size
32 words
32 words
32 words
32 words
64 words
64 words
64 words
64 words
4 bytes
4 bytes
4 bytes
4 bytes
Page
Signature Bytes Address
0x000
0x1E
0x1E
0x1E
Size
PCWORD
EEA[1:0]
EEA[1:0]
EEA[1:0]
EEA[1:0]
PCWORD
PC[4:0]
PC[4:0]
PC[4:0]
PC[4:0]
PC[5:0]
PC[5:0]
PC[5:0]
PC[5:0]
0x001
0x94
0x95
0x95
Pages
No. of
128
128
Pages
64
64
No. of
128
128
128
128
256
256
64
64
PCPAGE
EEA[7:2]
EEA[7:2]
EEA[8:2]
EEA[8:2]
PCPAGE
PC[10:5]
PC[10:5]
PC[11:5]
PC[11:5]
PC[12:6]
PC[12:6]
PC[13:6]
PC[13:6]
0x002
0x0B
0x014
0x0F
EEAMSB
PCMSB
10
10
11
11
12
12
13
13
7
7
8
8
301

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