ATmega3290A Atmel Corporation, ATmega3290A Datasheet - Page 313

• Manufacturer Part Number: ATmega3290A
• Manufacturer: Atmel Corporation

Specifications of ATmega3290A

• Flash (kbytes): 32 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 69
• Ext Interrupts: 32
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 160
• 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

28.2.1
28.3
28.4
28.5
8284D–AVR–6/11
Signature Bytes
Calibration Byte
Page Size
Latching of Fuses
ATmega169A/PA/329A/PA/3290A/PA/649A/P/6490A/P
The fuse values are latched when the device enters programming mode and changes of the
fuse values will have no effect until the part leaves Programming mode. This does not apply to
the EESAVE Fuse which will take effect once it is programmed. The fuses are also latched on
Power-up in Normal mode.
All Atmel microcontrollers have a three-byte signature code which identifies the device. This
code can be read in both serial and parallel mode, also when the device is locked. The three
bytes reside in a separate address space.
For the ATmega169A/169PA/329A/329PA/3290A/3290PA/649A/649P/6490A/6490P the signa-
ture bytes are given in
Table 28-6.
The ATmega169A/169PA/329A/329PA/3290A/3290PA/649A/649P/6490A/6490P has a byte
calibration value for the internal RC Oscillator. This byte resides in the high byte of address
0x000 in the signature address space. During reset, this byte is automatically written into the
OSCCAL Register to ensure correct frequency of the calibrated RC Oscillator.
Table 28-7.
Part
ATmega169A
ATmega169PA
ATmega329A
ATmega329PA
ATmega3290A
ATmega3290PA
ATmega649A
ATmega649P
ATmega6490A
ATmega6490P
Flash Size
(32Kbytes)
16K words
Device and JTAG ID
No. of Words in a Page and No. of Pages in the Flash
Table
Page Size
64 words
0x000
0x1E
0x1E
0x1E
0x1E
0x1E
0x1E
0x1E
0x1E
0x1E
0x1E
28-6.
Signature Bytes
PCWORD
0x001
0x94
0x94
0x95
0x95
0x95
0x95
0x96
0x96
0x96
0x96
PC[5:0]
0x002
0x0B
0x0C
0x0B
0x0C
0x11
0x05
0x03
0x04
0x03
0x04
No. of Pages
256
Part Number
950C
950C
960C
960C
950B
950B
960B
960B
9405
9405
PCPAGE
PC[13:6]
JTAG
Manufacture ID
0x1F
0x1F
0x1F
0x1F
0x1F
0x1F
0x1F
0x1F
0x1F
0x1F
PCMSB
13
313