ATmega48A Atmel Corporation, ATmega48A Datasheet - Page 561

• Manufacturer Part Number: ATmega48A
• Manufacturer: Atmel Corporation

Specifications of ATmega48A

• Flash (kbytes): 4 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 20 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: Yes
• 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 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 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

8271D–AVR–05/11
13 External Interrupts ................................................................................. 72
14 I/O-Ports .................................................................................................. 77
15 8-bit Timer/Counter0 with PWM ............................................................ 96
16 16-bit Timer/Counter1 with PWM ........................................................ 115
17 Timer/Counter0 and Timer/Counter1 Prescalers .............................. 143
13.1Pin Change Interrupt Timing .................................................................................72
13.2Register Description ..............................................................................................73
14.1Overview ...............................................................................................................77
14.2Ports as General Digital I/O ...................................................................................78
14.3Alternate Port Functions ........................................................................................82
14.4Register Description ..............................................................................................94
15.1Features ................................................................................................................96
15.2Overview ...............................................................................................................96
15.3Timer/Counter Clock Sources ...............................................................................98
15.4Counter Unit ..........................................................................................................98
15.5Output Compare Unit ............................................................................................99
15.6Compare Match Output Unit ................................................................................100
15.7Modes of Operation .............................................................................................101
15.8Timer/Counter Timing Diagrams .........................................................................106
15.9Register Description ............................................................................................108
16.1Features ..............................................................................................................115
16.2Overview .............................................................................................................115
16.3Accessing 16-bit Registers ..................................................................................117
16.4Timer/Counter Clock Sources .............................................................................120
16.5Counter Unit ........................................................................................................121
16.6Input Capture Unit ...............................................................................................122
16.7Output Compare Units .........................................................................................124
16.8Compare Match Output Unit ................................................................................126
16.9Modes of Operation .............................................................................................127
16.10Timer/Counter Timing Diagrams .......................................................................134
16.11Register Description ..........................................................................................136
17.1Internal Clock Source ..........................................................................................143
17.2Prescaler Reset ...................................................................................................143
17.3External Clock Source .........................................................................................143
17.4Register Description ............................................................................................145
ATmega48A/PA/88A/PA/168A/PA/328/P
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