ATMEGA325P-20MU Atmel, ATMEGA325P-20MU Datasheet - Page 359

• Manufacturer Part Number: ATMEGA325P-20MU
• Description: IC MCU AVR 32K FLASH 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA325P-20MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• 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): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Processor Series: ATMEGA32x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: SPI, UART, USI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 54
• 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
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATMEGA325P-16MU; ATMEGA325P-16MU

8023F–AVR–07/09
14 8-bit Timer/Counter0 with PWM ............................................................ 89
15 16-bit Timer/Counter1 .......................................................................... 107
16 8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 135
13.2Ports as General Digital I/O ...................................................................................64
13.3Alternate Port Functions ........................................................................................69
13.4Register Description ..............................................................................................85
14.1Features ................................................................................................................89
14.2Overview ...............................................................................................................89
14.3Timer/Counter Clock Sources ...............................................................................90
14.4Counter Unit ..........................................................................................................90
14.5Output Compare Unit ............................................................................................92
14.6Compare Match Output Unit ..................................................................................93
14.7Modes of Operation ...............................................................................................94
14.8Timer/Counter Timing Diagrams ...........................................................................99
14.9Timer/Counter0 and Timer/Counter1 Prescalers .................................................100
14.10Register Description ..........................................................................................102
15.1Features ..............................................................................................................107
15.2Overview .............................................................................................................107
15.3Accessing 16-bit Registers ..................................................................................110
15.4Timer/Counter Clock Sources .............................................................................112
15.5Counter Unit ........................................................................................................113
15.6Input Capture Unit ...............................................................................................114
15.7Output Compare Units .........................................................................................116
15.8Compare Match Output Unit ................................................................................117
15.9Modes of Operation .............................................................................................119
15.10Timer/Counter Timing Diagrams .......................................................................126
15.11Register Description ..........................................................................................128
16.1Features ..............................................................................................................135
16.2Overview .............................................................................................................135
16.3Timer/Counter Clock Sources .............................................................................136
16.4Counter Unit ........................................................................................................137
16.5Output Compare Unit ..........................................................................................137
16.6Compare Match Output Unit ................................................................................139
16.7Modes of Operation .............................................................................................140
16.8Timer/Counter Timing Diagrams .........................................................................145
ATmega325P/3250P
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