ATMEGA3250P-20AU Atmel, ATMEGA3250P-20AU Datasheet - Page 358

• Manufacturer Part Number: ATMEGA3250P-20AU
• Description: IC MCU AVR 32K FLASH 100-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA3250P-20AU

• 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: 69
• 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: 100-TQFP, 100-VQFP
• 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: 69
• 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: 8-ch x 10-bit
• For Use With: ATSTK600-TQFP100 - STK600 SOCKET/ADAPTER 100-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK504 - STARTER KIT AVR EXP MOD 100P LCD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATMEGA3250P-16AU; ATMEGA3250P-16AU

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ATmega325P/3250P
9
10 System Control and Reset .................................................................... 45
11 Interrupts ................................................................................................ 53
12 External Interrupts ................................................................................. 58
13 I/O-Ports .................................................................................................. 63
Power Management and Sleep Modes ................................................. 38
8.6Calibrated Internal RC Oscillator .............................................................................33
8.7External Clock .........................................................................................................34
8.8Clock Output Buffer .................................................................................................35
8.9Timer/Counter Oscillator .........................................................................................35
8.10System Clock Prescaler ........................................................................................35
8.11Register Description ..............................................................................................36
9.1Overview .................................................................................................................38
9.2Sleep Modes ...........................................................................................................38
9.3BOD Disable ............................................................................................................39
9.4Idle Mode .................................................................................................................39
9.5ADC Noise Reduction Mode ...................................................................................39
9.6Power-down Mode ..................................................................................................40
9.7Power-save Mode ...................................................................................................40
9.8Standby Mode .........................................................................................................40
9.9Power Reduction Register .......................................................................................40
9.10Minimizing Power Consumption ............................................................................41
9.11Register Description ..............................................................................................43
10.1Resetting the AVR .................................................................................................45
10.2Reset Sources .......................................................................................................45
10.3Internal Voltage Reference ....................................................................................48
10.4Watchdog Timer ....................................................................................................49
10.5Register Description ..............................................................................................50
11.1Overview ...............................................................................................................53
11.2Interrupt Vectors ....................................................................................................53
11.3Register Description ..............................................................................................56
12.1Overview ...............................................................................................................58
12.2Pin Change Interrupt Timing .................................................................................59
12.3Register Description ..............................................................................................59
13.1Overview ...............................................................................................................63
8023F–AVR–07/09