ATmega48P Atmel Corporation, ATmega48P Datasheet - Page 418

• Manufacturer Part Number: ATmega48P
• Manufacturer: Atmel Corporation

Specifications of ATmega48P

• 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: Yes
• 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

vi
ATmega48P/88P/168P
26 Self-Programming the Flash, ATmega48P ........................................ 267
27 Boot Loader Support – Read-While-Write Self-Programming,
28 Memory Programming ......................................................................... 291
29 Electrical Characteristics .................................................................... 309
30 Typical Characteristics ........................................................................ 322
ATmega88P and ATmega168P 275
26.1Overview .............................................................................................................267
26.2Addressing the Flash During Self-Programming .................................................268
26.3Register Description’ ...........................................................................................273
27.1Features ..............................................................................................................275
27.2Overview .............................................................................................................275
27.3Application and Boot Loader Flash Sections .......................................................275
27.4Read-While-Write and No Read-While-Write Flash Sections ..............................276
27.5Boot Loader Lock Bits .........................................................................................278
27.6Entering the Boot Loader Program ......................................................................279
27.7Addressing the Flash During Self-Programming .................................................280
27.8Self-Programming the Flash ................................................................................280
27.9Register Description ............................................................................................289
28.1Program And Data Memory Lock Bits .................................................................291
28.2Fuse Bits .............................................................................................................292
28.3Signature Bytes ...................................................................................................294
28.4Calibration Byte ...................................................................................................294
28.5Page Size ............................................................................................................295
28.6Parallel Programming Parameters, Pin Mapping, and Commands .....................295
28.7Parallel Programming ..........................................................................................297
28.8Serial Downloading .............................................................................................304
29.1Absolute Maximum Ratings* ...............................................................................309
29.2DC Characteristics ..............................................................................................309
29.3Speed Grades .....................................................................................................312
29.4Clock Characteristics ...........................................................................................313
29.5System and Reset Characteristics ......................................................................314
29.6SPI Timing Characteristics ..................................................................................315
29.72-wire Serial Interface Characteristics .................................................................317
29.8ADC Characteristics – Preliminary Data ..............................................................319
29.9Parallel Programming Characteristics .................................................................320
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