ATmega48 Automotive Atmel Corporation, ATmega48 Automotive Datasheet - Page 220

• Manufacturer Part Number: ATmega48 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATmega48 Automotive

• Flash (kbytes): 4 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 23
• Ext Interrupts: 24
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 256
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 125
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

220
Atmel ATtiny24/44/84 [Preliminary]
8
9
10 Interrupts .............................................................................................. 50
11 External Interrupts .............................................................................. 52
12 I/O Ports ............................................................................................... 56
Power Management and Sleep Modes .............................................. 34
System Control and Reset .................................................................. 40
7.8
7.9
7.10
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
9.10
10.1
11.1
11.2
12.1
12.2
12.3
12.4
128kHz Internal Oscillator ............................................................................31
System Clock Prescaler ...............................................................................31
Register Description .....................................................................................32
Sleep Modes ................................................................................................34
Idle Mode .....................................................................................................34
ADC Noise Reduction Mode ........................................................................35
Power-down Mode .......................................................................................35
Standby Mode ..............................................................................................35
Software BOD Disable .................................................................................35
Power Reduction Register ...........................................................................36
Minimizing Power Consumption ...................................................................36
Register Description .....................................................................................38
Resetting the AVR ........................................................................................40
Reset Sources ..............................................................................................40
Power-on Reset ...........................................................................................41
External Reset ..............................................................................................42
Brown-out Detection .....................................................................................43
Watchdog Reset ...........................................................................................43
Internal Voltage Reference ..........................................................................44
Watchdog Timer ...........................................................................................44
Timed Sequences for Changing the Configuration of the Watchdog Timer .45
Register Description .....................................................................................46
Interrupt Vectors ...........................................................................................50
Pin Change Interrupt Timing ........................................................................52
Register Description .....................................................................................53
Overview ......................................................................................................56
Ports as General Digital I/O .........................................................................57
Alternate Port Functions ...............................................................................61
Register Description .....................................................................................70
7701E–AVR–02/11