ATmega640 Atmel Corporation, ATmega640 Datasheet - Page 394

• Manufacturer Part Number: ATmega640
• Manufacturer: Atmel Corporation

Specifications of ATmega640

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 86
• Ext Interrupts: 32
• Usb Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 1
• Uart: 4
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 8
• Eeprom (bytes): 4096
• 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: 6
• Output Compare Channels: 16
• Input Capture Channels: 4
• Pwm Channels: 15
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

32.5
32.6
2549N–AVR–05/11
Standby Supply Current
Pin Pull-up
Figure 32-15. Standby Supply Current vs. V
Figure 32-16. I/O Pin Pull-up Resistor Current vs. Input Voltage (V
0.18
0.16
0.14
0.12
0.08
0.06
0.04
0.02
0.2
0.1
60
50
40
30
20
10
0
0
1.5
0
0.2
2
0.4
2.5
ATmega640/1280/1281/2560/2561
0.6
3
0.8
CC
V
V
CC
OP
3.5
(Watchdog Timer Disabled)
1
(V)
(V)
1.2
4
1.4
4.5
1.6
CC
= 1.8V)
5
1.8
5.5
2
455kHz res
6MHz xtal
6MHz res
4MHz res
2MHz res
1MHz res
-40°C
4MHz xtal
2MHz xtal
32kHz xtal
25°C
85°C
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