ATMEGA328P-20PU Atmel, ATMEGA328P-20PU Datasheet - Page 414

• Manufacturer Part Number: ATMEGA328P-20PU
• Manufacturer: Atmel

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
13 I/O-Ports .................................................................................................. 72
14 8-bit Timer/Counter0 with PWM ............................................................ 91
15 16-bit Timer/Counter1 with PWM ........................................................ 110
16 Timer/Counter0 and Timer/Counter1 Prescalers .............................. 138
17 8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 141
13.1Overview ...............................................................................................................72
13.2Ports as General Digital I/O ...................................................................................73
13.3Alternate Port Functions ........................................................................................77
13.4Register Description ..............................................................................................89
14.1Features ................................................................................................................91
14.2Overview ...............................................................................................................91
14.3Timer/Counter Clock Sources ...............................................................................93
14.4Counter Unit ..........................................................................................................93
14.5Output Compare Unit ............................................................................................94
14.6Compare Match Output Unit ..................................................................................95
14.7Modes of Operation ...............................................................................................96
14.8Timer/Counter Timing Diagrams .........................................................................101
14.9Register Description ............................................................................................103
15.1Features ..............................................................................................................110
15.2Overview .............................................................................................................110
15.3Accessing 16-bit Registers ..................................................................................112
15.4Timer/Counter Clock Sources .............................................................................115
15.5Counter Unit ........................................................................................................116
15.6Input Capture Unit ...............................................................................................117
15.7Output Compare Units .........................................................................................119
15.8Compare Match Output Unit ................................................................................121
15.9Modes of Operation .............................................................................................122
15.10Timer/Counter Timing Diagrams .......................................................................129
15.11Register Description ..........................................................................................131
16.1Internal Clock Source ..........................................................................................138
16.2Prescaler Reset ...................................................................................................138
16.3External Clock Source .........................................................................................138
16.4Register Description ............................................................................................140
17.1Features ..............................................................................................................141
17.2Overview .............................................................................................................141
ATmega48P/88P/168P
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