ATMEGA48PA-PN Atmel, ATMEGA48PA-PN Datasheet - Page 442

• Manufacturer Part Number: ATMEGA48PA-PN
• Description: MCU AVR 4KB FLASH 20MHZ 28PDIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA48PA-PN

• 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: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8161D–AVR–10/09
9
10 System Control and Reset .................................................................... 46
11 Interrupts ................................................................................................ 57
12 External Interrupts ................................................................................. 70
Power Management and Sleep Modes ................................................. 39
8.7128 kHz Internal Oscillator ......................................................................................34
8.8External Clock .........................................................................................................34
8.9Clock Output Buffer .................................................................................................35
8.10Timer/Counter Oscillator .......................................................................................35
8.11System Clock Prescaler ........................................................................................35
8.12Register Description ..............................................................................................37
9.1Sleep Modes ...........................................................................................................39
9.2BOD Disable ............................................................................................................40
9.3Idle Mode .................................................................................................................40
9.4ADC Noise Reduction Mode ...................................................................................40
9.5Power-down Mode ..................................................................................................41
9.6Power-save Mode ...................................................................................................41
9.7Standby Mode .........................................................................................................41
9.8Extended Standby Mode .........................................................................................41
9.9Power Reduction Register .......................................................................................42
9.10Minimizing Power Consumption ............................................................................42
9.11Register Description ..............................................................................................44
10.1Resetting the AVR .................................................................................................46
10.2Reset Sources .......................................................................................................46
10.3Power-on Reset .....................................................................................................47
10.4External Reset .......................................................................................................48
10.5Brown-out Detection ..............................................................................................48
10.6Watchdog System Reset .......................................................................................49
10.7Internal Voltage Reference ....................................................................................49
10.8Watchdog Timer ....................................................................................................50
10.9Register Description ..............................................................................................54
11.1Interrupt Vectors in ATmega48PA .........................................................................57
11.2Interrupt Vectors in ATmega88PA .........................................................................59
11.3Interrupt Vectors in ATmega168PA .......................................................................62
11.4Interrupt Vectors in ATmega328P .........................................................................65
11.5Register Description ..............................................................................................68
ATmega48PA/88PA/168PA/328P
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