ATmega6490A Atmel Corporation, ATmega6490A Datasheet - Page 85

• Manufacturer Part Number: ATmega6490A
• Manufacturer: Atmel Corporation

Specifications of ATmega6490A

• Flash (kbytes): 64 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): 4
• Eeprom (bytes): 2048
• 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

14.3.7
8284D–AVR–6/11
Alternate Functions of Port G
ATmega169A/PA/329A/PA/3290A/PA/649A/P/6490A/P
Table 14-20. Overriding Signals for Alternate Functions in PF3:PF0
The alternate pin configuration is as follows:
Table 14-21. Port G Pins Alternate Functions (SEG refers to 100-pin/64-pin pinout)
Note:
The alternate pin configuration is as follows:
• RESET – Port G, Bit 5
RESET: External Reset input. When the RSTDISBL Fuse is programmed (‘0’), PG5 will function
as input with pull-up always on.
• T0/SEG – Port G, Bit 4
T0, Timer/Counter0 Counter Source.
SEG, LCD front plane 32/23.
• T1/SEG24 – Port G, Bit 3
T1, Timer/Counter1 Counter Source.
SEG, LCD front plane 33/24.
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Port Pin
PG5
PG4
PG3
PG2
PG1
PG0
1. Port G, PG5 is input only. Pull-up is always on.
See
Table 28-3 on page 311
PF3/ADC3
0
0
ADC3 INPUT
0
0
0
0
0
0
–
–
Alternate Function
RESET
T0/SEG (Timer/Counter0 Clock Input or LCD Front Plane 32/23)
T1/SEG (Timer/Counter1 Clock Input or LCD Front Plane 33/24)
SEG (LCD Front Plane 4/4)
SEG (LCD Front Plane 17/13)
SEG (LCD Front Plane 18/14)
(1)
PF2/ADC2
0
0
0
0
0
0
–
0
0
–
ADC2 INPUT
for RSTDISBL fuse.
PF1/ADC1
0
0
0
0
0
0
–
0
0
–
ADC1 INPUT
PF0/ADC0
0
0
0
0
0
0
–
0
0
–
ADC0 INPUT
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