ATMEGA328P-20PU Atmel, ATMEGA328P-20PU Datasheet - Page 417

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ATMEGA328P-20PU

Manufacturer Part Number
ATMEGA328P-20PU
Description
Manufacturer
Atmel
Datasheet

Specifications of ATMEGA328P-20PU

Cpu Family
ATmega
Device Core
AVR
Device Core Size
8b
Frequency (max)
20MHz
Interface Type
SPI/TWI/USART
Program Memory Type
Flash
Program Memory Size
32KB
Total Internal Ram Size
2KB
# I/os (max)
23
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
On-chip Adc
6-chx10-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Through Hole
Pin Count
28
Package Type
PDIP
Lead Free Status / Rohs Status
Compliant
8025K–AVR–10/09
26 Boot Loader Support – Read-While-Write Self-Programming,
27 Memory Programming ......................................................................... 290
28 Electrical Characteristics .................................................................... 308
29 Typical Characteristics ........................................................................ 321
ATmega88P and ATmega168P 274
25.2Addressing the Flash During Self-Programming .................................................267
25.3Register Description’ ...........................................................................................272
26.1Features ..............................................................................................................274
26.2Overview .............................................................................................................274
26.3Application and Boot Loader Flash Sections .......................................................274
26.4Read-While-Write and No Read-While-Write Flash Sections ..............................275
26.5Boot Loader Lock Bits .........................................................................................277
26.6Entering the Boot Loader Program ......................................................................278
26.7Addressing the Flash During Self-Programming .................................................279
26.8Self-Programming the Flash ................................................................................279
26.9Register Description ............................................................................................288
27.1Program And Data Memory Lock Bits .................................................................290
27.2Fuse Bits .............................................................................................................291
27.3Signature Bytes ...................................................................................................293
27.4Calibration Byte ...................................................................................................293
27.5Page Size ............................................................................................................294
27.6Parallel Programming Parameters, Pin Mapping, and Commands .....................294
27.7Parallel Programming ..........................................................................................296
27.8Serial Downloading .............................................................................................303
28.1Absolute Maximum Ratings* ...............................................................................308
28.2DC Characteristics ..............................................................................................308
28.3Speed Grades .....................................................................................................311
28.4Clock Characteristics ...........................................................................................312
28.5System and Reset Characteristics ......................................................................313
28.6SPI Timing Characteristics ..................................................................................314
28.72-wire Serial Interface Characteristics .................................................................316
28.8ADC Characteristics – Preliminary Data ..............................................................318
28.9Parallel Programming Characteristics .................................................................319
29.1ATmega48P Typical Characteristics ...................................................................322
29.2ATmega88P Typical Characteristics ...................................................................346
ATmega48P/88P/168P
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