ATmega324A Atmel Corporation, ATmega324A Datasheet - Page 581
ATmega324A
Manufacturer Part Number
ATmega324A
Description
Manufacturer
Atmel Corporation
Specifications of ATmega324A
Flash (kbytes)
32 Kbytes
Pin Count
44
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Spi
3
Twi (i2c)
1
Uart
2
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
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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8272C–AVR–06/11
26 Boot Loader Support – Read-While-Write Self-Programming ......... 279
27 Memory Programming ......................................................................... 297
28 Electrical Characteristics .................................................................... 329
25.1Features ..............................................................................................................269
25.2Overview .............................................................................................................269
25.3Data Registers .....................................................................................................270
25.4Boundary-scan Specific JTAG Instructions .........................................................271
25.5Boundary-scan Chain ..........................................................................................272
25.6ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P Boundary-scan Order
25.7Boundary-scan Description Language Files ........................................................277
25.8Register Description ............................................................................................278
26.1Features ..............................................................................................................279
26.2Overview .............................................................................................................279
26.3Application and Boot Loader Flash Sections .......................................................279
26.4Read-While-Write and No Read-While-Write Flash Sections ..............................280
26.5Boot Loader Lock Bits .........................................................................................282
26.6Entering the Boot Loader Program ......................................................................283
26.7Addressing the Flash During Self-Programming .................................................284
26.8Self-Programming the Flash ................................................................................285
26.9Register Description ............................................................................................295
27.1Program And Data Memory Lock Bits .................................................................297
27.2Fuse Bits .............................................................................................................298
27.3Signature Bytes ...................................................................................................300
27.4Calibration Byte ...................................................................................................300
27.5Page Size ............................................................................................................300
27.6Parallel Programming Parameters, Pin Mapping, and Commands .....................301
27.7Parallel Programming ..........................................................................................303
27.8Serial Downloading .............................................................................................312
27.9Serial Programming Instruction set .....................................................................314
27.10Programming via the JTAG Interface ................................................................316
28.1DC Characteristics ..............................................................................................329
28.2Speed Grades .....................................................................................................335
28.3Clock Characteristics ...........................................................................................336
28.4System and Reset Characteristics ......................................................................337
ATmega164A/PA/324A/PA/644A/PA/1284/P
275
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