ATmega3290A Atmel Corporation, ATmega3290A Datasheet - Page 83
ATmega3290A
Manufacturer Part Number
ATmega3290A
Description
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
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14.3.6
8284D–AVR–6/11
Alternate Functions of Port F
ATmega169A/PA/329A/PA/3290A/PA/649A/P/6490A/P
Table 14-17. Overriding Signals for Alternate Functions in PE3:PE0
Note:
The Port F has an alternate function as analog input for the ADC as shown in
some Port F pins are configured as outputs, it is essential that these do not switch when a con-
version is in progress. This might corrupt the result of the conversion. If the JTAG interface is
enabled, the pull-up resistors on pins PF7(TDI), PF5(TMS) and PF4(TCK) will be activated even
if a reset occurs.
Table 14-18. Port F Pins Alternate Functions
• TDI, ADC7 – Port F, Bit 7
ADC7, Analog to Digital Converter, Channel 7
TDI, JTAG Test Data In: Serial input data to be shifted in to the Instruction Register or Data Reg-
ister (scan chains). When the JTAG interface is enabled, this pin can not be used as an I/O pin.
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Port Pin
PF7
PF6
PF5
PF4
PF3
PF2
PF1
PF0
1. AIN0D and AIN1D is described in
PE3/AIN1/
PCINT3
0
0
0
0
0
0
–
(PCINT3 • PCIE0)
+ AIN1D
PCINT3 • PCIE0
PCINT3 INPUT
AIN1 INPUT
Alternate Function
ADC7/TDI (ADC input channel 7 or JTAG Test Data Input)
ADC6/TDO (ADC input channel 6 or JTAG Test Data Output)
ADC5/TMS (ADC input channel 5 or JTAG Test mode Select)
ADC4/TCK (ADC input channel 4 or JTAG Test ClocK)
ADC3 (ADC input channel 3)
ADC2 (ADC input channel 2)
ADC1 (ADC input channel 1)
ADC0 (ADC input channel 0)
(1)
PE2/XCK/AIN0/
PCINT2
XCK OUTPUT
ENABLE
XCK
0
0
0
0
–
(PCINT2 • PCIE0)
+ AIN0D
PCINT2 • PCIE0
XCK/PCINT2
INPUT
AIN0 INPUT
”DIDR1 – Digital Input Disable Register 1” on page
(1)
.
PE1/TXD/
PCINT1
TXEN
0
TXEN
1
TXEN
TXD
–
PCINT1 • PCIE0
1
PCINT1 INPUT
–
PE0/RXD/
PCINT0
RXEN
PORTE0 • PUD
RXEN
0
0
0
–
PCINT0 • PCIE0
1
RXD/PCINT0
INPUT
–
Table
14-18. If
218.
83
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