ATmega325A Atmel Corporation, ATmega325A Datasheet - Page 677

• Manufacturer Part Number: ATmega325A
• Manufacturer: Atmel Corporation

Specifications of ATmega325A

• Flash (kbytes): 32 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 17
• 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): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• 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: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

8285D–AVR–06/11
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P
27 Memory Programming ......................................................................... 283
28 Electrical Characteristics .................................................................... 317
29 Typical Characteristics ........................................................................ 332
26.4Read-While-Write and No Read-While-Write Flash Sections ..............................267
26.5Boot Loader Lock Bits .........................................................................................270
26.6Entering the Boot Loader Program ......................................................................271
26.7Addressing the Flash During Self-Programming .................................................272
26.8Self-Programming the Flash ................................................................................273
26.9Register Description ............................................................................................281
27.1Program And Data Memory Lock Bits .................................................................283
27.2Fuse Bits .............................................................................................................284
27.3Signature Bytes ...................................................................................................286
27.4Calibration Byte ...................................................................................................286
27.5Page Size ............................................................................................................286
27.6Parallel Programming Parameters, Pin Mapping, and Commands .....................287
27.7Parallel Programming ..........................................................................................289
27.8Serial Downloading .............................................................................................298
27.9Programming via the JTAG Interface ..................................................................304
28.1Absolute Maximum Ratings* ...............................................................................317
28.2DC Characteristics ..............................................................................................317
28.3Speed Grades .....................................................................................................324
28.4Clock Characteristics ...........................................................................................325
28.5System and Reset Characteristics ......................................................................326
28.6Power-on Reset ...................................................................................................326
28.7Brown-out Detection ............................................................................................327
28.8External Interrupts Characteristics ......................................................................327
28.9SPI Timing Characteristics ..................................................................................328
28.10ADC Characteristics .........................................................................................330
29.1ATmega165A ......................................................................................................332
29.2ATmega165PA ....................................................................................................365
29.3ATmega325A ......................................................................................................397
29.4ATmega325PA ....................................................................................................428
29.5ATmega3250A ....................................................................................................459
29.6ATmega3250PA ..................................................................................................490
29.7ATmega645A ......................................................................................................521
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