ATmega325P Atmel Corporation, ATmega325P Datasheet - Page 361

• Manufacturer Part Number: ATmega325P
• Manufacturer: Atmel Corporation

Specifications of ATmega325P

• 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: 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: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

8023F–AVR–07/09
22 JTAG Interface and On-chip Debug System ..................................... 223
23 IEEE 1149.1 (JTAG) Boundary-scan ................................................... 229
24 Boot Loader Support – Read-While-Write Self-Programming ......... 256
21.4Starting a Conversion ..........................................................................................208
21.5Prescaling and Conversion Timing ......................................................................209
21.6Changing Channel or Reference Selection .........................................................211
21.7ADC Noise Canceler ...........................................................................................212
21.8ADC Conversion Result ......................................................................................216
21.9Register Description ............................................................................................218
22.1Features ..............................................................................................................223
22.2Overview .............................................................................................................223
22.3TAP – Test Access Port ......................................................................................223
22.4TAP Controller .....................................................................................................225
22.5Using the Boundary-scan Chain ..........................................................................226
22.6Using the On-chip Debug System .......................................................................226
22.7On-chip Debug Specific JTAG Instructions .........................................................227
22.8Using the JTAG Programming Capabilities .........................................................227
22.9Bibliography .........................................................................................................228
22.10Register Description ..........................................................................................228
23.1Features ..............................................................................................................229
23.2Overview .............................................................................................................229
23.3Data Registers .....................................................................................................229
23.4Boundary-scan Specific JTAG Instructions .........................................................231
23.5Boundary-scan Chain ..........................................................................................232
23.6ATmega325P/3250P Boundary-scan Order ........................................................241
23.7Boundary-scan Description Language Files ........................................................254
23.8Register Description ............................................................................................255
24.1Features ..............................................................................................................256
24.2Overview .............................................................................................................256
24.3Application and Boot Loader Flash Sections .......................................................256
24.4Read-While-Write and No Read-While-Write Flash Sections ..............................257
24.5Boot Loader Lock Bits .........................................................................................259
24.6Entering the Boot Loader Program ......................................................................261
24.7Addressing the Flash During Self-Programming .................................................261
24.8Self-Programming the Flash ................................................................................262
ATmega325P/3250P
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