ATmega640 Atmel Corporation, ATmega640 Datasheet - Page 377

• 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

31.8
Table 31-9.
2549N–AVR–05/11
Symbol
AVCC
V
R
V
V
R
V
REF
INT1
INT2
REF
AIN
IN
ADC Characteristics – Preliminary Data
Parameter
Resolution
Absolute accuracy (Including
INL, DNL, quantization error,
gain and offset error)
Integral Non-Linearity (INL)
Differential Non-Linearity (DNL)
Gain Error
Offset Error
Conversion Time
Clock Frequency
Analog Supply Voltage
Reference Voltage
Input Voltage
Input Bandwidth
Internal Voltage Reference
Internal Voltage Reference
Reference Input Resistance
Analog Input Resistance
ADC Characteristics, Singel Ended Channels
Note:
1. Values are guidelines only.
Single Ended Conversion
Single Ended Conversion
V
CLK
Single Ended Conversion
V
CLK
Single Ended Conversion
V
CLK
Noise Reduction Mode
Single Ended Conversion
V
CLK
Noise Reduction Mode
Single Ended Conversion
V
CLK
Single Ended Conversion
V
CLK
Single Ended Conversion
V
CLK
Single Ended Conversion
V
CLK
Free Running Conversion
Single Ended Conversion
1.1V
2.56V
REF
REF
REF
REF
REF
REF
REF
REF
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 200kHz
= 200kHz
Condition
= 1MHz
= 200kHz
= 1MHz
= 200kHz
= 200kHz
= 200kHz
CC
CC
CC
CC
CC
CC
CC
CC
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
ATmega640/1280/1281/2560/2561
V
Min
CC
GND
1.0
1.0
2.4
13
50
- 0.3
(1)
Typ
2.25
1.25
38,5
2.56
100
0.5
1.1
10
32
-2
3
2
3
2
(1)
V
CC
Max
AVCC
1000
V
260
2.5
1.2
2.8
REF
+ 0.3
(1)
Units
LSB
Bits
kHz
kHz
MΩ
kΩ
µs
V
V
377