ATmega48 Atmel Corporation, ATmega48 Datasheet - Page 374

• Manufacturer Part Number: ATmega48
• Manufacturer: Atmel Corporation

Specifications of ATmega48

• 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: 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 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

2545T–AVR–05/11
27 Boot loader support – Read-while-write self-programming, Atmel
28 Memory programming ......................................................................... 285
29 Electrical characteristics ..................................................................... 303
30 Typical characteristics ........................................................................ 315
ATmega88 and Atmel ATmega168 269
26.3Register description .............................................................................................267
27.1Features ..............................................................................................................269
27.2Overview .............................................................................................................269
27.3Application and boot loader flash sections ..........................................................269
27.4Read-while-write and no read-while-write flash sections .....................................270
27.5Boot loader lock bits ............................................................................................272
27.6Entering the boot loader program ........................................................................273
27.7Addressing the flash during self-programming ....................................................274
27.8Self-programming the flash .................................................................................275
27.9Register description .............................................................................................283
28.1Program and data memory lock bits ....................................................................285
28.2Fuse bits ..............................................................................................................286
28.3Signature bytes ...................................................................................................288
28.4Calibration byte ...................................................................................................288
28.5Page size .............................................................................................................289
28.6Parallel programming parameters, pin mapping, and commands .......................289
28.7Parallel programming ..........................................................................................291
28.8Serial downloading ..............................................................................................298
29.1Absolute maximum ratings* .................................................................................303
29.2DC characteristics ...............................................................................................303
29.3Speed grades ......................................................................................................305
29.4Clock characteristics ...........................................................................................306
29.5System and reset characteristics ........................................................................307
29.62-wire serial interface characteristics ..................................................................308
29.7SPI timing characteristics ....................................................................................309
29.8ADC characteristics .............................................................................................311
29.9Parallel programming characteristics ..................................................................312
30.1Active supply current ...........................................................................................315
30.2Idle supply current ...............................................................................................318
30.3Supply current of I/O modules .............................................................................321
ATmega48/88/168
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