ATMEGA328P-AU Atmel, ATMEGA328P-AU Datasheet - Page 293

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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26.8.16
In
Table 26-13. Boot Size Configuration, ATmega328/328P
Table 26-14. Read-While-Write Limit, ATmega328/328P
For details about these two section, see
Write Section” on page
Table 26-15. Explanation of Different Variables used in
Note:
8271C–AVR–08/10
BOOTSZ1
Section
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
Variable
PCMSB
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
Table 26-13
1
1
0
0
1. Z15: always ignored
ATmega328 and ATmega328P Boot Loader Parameters
Z0: should be zero for all SPM commands, byte select for the LPM instruction.
See
Programming.
BOOTSZ0
through
”Addressing the Flash During Self-Programming” on page 284
1
0
1
0
Table
280.
Boot
Size
256 words
512 words
1024 words
2048 words
PC[13:6]
Note:
PC[5:0]
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
13
5
26-15, the parameters used in the description of the self programming are given.
The different BOOTSZ Fuse configurations are shown in
Pages
16
32
4
8
”NRWW – No Read-While-Write Section” on page 280
Corresponding
Application
Flash
Section
0x0000 - 0x3EFF
0x0000 - 0x3DFF
0x0000 - 0x3BFF
0x0000 - 0x37FF
Z-value
Z14:Z7
Z6:Z1
Z14
Z6
(1)
Figure 26-3
Boot
Loader
Flash
Section
0x3F00 - 0x3FFF
0x3E00 - 0x3FFF
0x3C00 - 0x3FFF
0x3800 - 0x3FFF
Description
Most significant bit in the Program Counter. (The Program Counter
is 14 bits PC[13:0])
Most significant bit which is used to address the words within
one page (64 words in a page requires 6 bits PC [5:0])
Bit in Z-register that is mapped to PCMSB. Because Z0 is not used,
the ZPCMSB equals PCMSB + 1.
Bit in Z-register that is mapped to PAGEMSB. Because Z0 is not
used, the ZPAGEMSB equals PAGEMSB + 1.
Program counter page address: Page select, for page erase and
page write
Program counter word address: Word select, for filling temporary
buffer (must be zero during page write operation)
Pages
224
32
and the Mapping to the Z-pointer, ATmega328/328P
for details about the use of Z-pointer during Self-
End
Application
Section
0x3EFF
0x3DFF
0x3BFF
0x37FF
Address
0x0000 - 0x37FF
0x3800 - 0x3FFF
Figure 26-2 on page
Boot Reset Address (Start Boot
Loader Section)
0x3F00
0x3E00
0x3C00
0x3800
and
”RWW – Read-While-
282.
293

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