ATmega48PA Atmel Corporation, ATmega48PA Datasheet - Page 564
ATmega48PA
Manufacturer Part Number
ATmega48PA
Description
Manufacturer
Atmel Corporation
Specifications of ATmega48PA
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
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8271D–AVR–05/11
26 Self-Programming the Flash, ATmega 48A/48PA ............................. 271
27 Boot Loader Support – Read-While-Write Self-Programming ......... 280
28 Memory Programming ......................................................................... 297
29 Electrical Characteristics .................................................................... 317
30 Typical Characteristics ........................................................................ 332
26.1Overview .............................................................................................................271
26.2Addressing the Flash During Self-Programming .................................................272
26.3Register Description ............................................................................................278
27.1Features ..............................................................................................................280
27.2Overview .............................................................................................................280
27.3Application and Boot Loader Flash Sections .......................................................280
27.4Read-While-Write and No Read-While-Write Flash Sections ..............................281
27.5Boot Loader Lock Bits .........................................................................................283
27.6Entering the Boot Loader Program ......................................................................284
27.7Addressing the Flash During Self-Programming .................................................285
27.8Self-Programming the Flash ................................................................................285
27.9Register Description ............................................................................................295
28.1Program And Data Memory Lock Bits .................................................................297
28.2Fuse Bits .............................................................................................................298
28.3Signature Bytes ...................................................................................................301
28.4Calibration Byte ...................................................................................................302
28.5Page Size ............................................................................................................302
28.6Parallel Programming Parameters, Pin Mapping, and Commands .....................303
28.7Parallel Programming ..........................................................................................305
28.8Serial Downloading .............................................................................................312
29.1Absolute Maximum Ratings* ...............................................................................317
29.2DC Characteristics ..............................................................................................317
29.3Speed Grades .....................................................................................................322
29.4Clock Characteristics ...........................................................................................323
29.5System and Reset Characteristics ......................................................................324
29.6SPI Timing Characteristics ..................................................................................325
29.7Two-wire Serial Interface Characteristics ............................................................327
29.8ADC Characteristics ............................................................................................329
29.9Parallel Programming Characteristics .................................................................330
30.1ATmega48A Typical Characteristics ...................................................................333
ATmega48A/PA/88A/PA/168A/PA/328/P
vi
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