ATmega640 Atmel Corporation, ATmega640 Datasheet - Page 378
ATmega640
Manufacturer Part Number
ATmega640
Description
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATmega640-16AU
Manufacturer:
OSRAM
Quantity:
12 000
Part Number:
ATmega640-16AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATmega640V-8AU
Manufacturer:
PHILIPS
Quantity:
56
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Table 31-10. ADC Characteristics, Differential Channels
2549N–AVR–05/11
Symbol
Parameter
Quantization Error, Gain and Offset Error)
Absolute Accuracy(Including INL, DNL,
Differential Non-Linearity (DNL)
Integral Non-Linearity (INL)
Clock Frequency
Conversion Time
Offset Error
Resolution
Gain Error
Gain = 1×
V
CLK
Gain = 10×
V
CLK
Gain = 200×
V
CLK
Gain = 1×
V
CLK
Gain = 10×
V
CLK
Gain = 200×
V
CLK
Gain = 1×
V
CLK
Gain = 10×
V
CLK
Gain = 200×
V
CLK
Gain =
Gain = 10×
Gain = 200×
Gain = 1×
V
CLK
Gain = 10×
V
CLK
Gain = 200×
V
CLK
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ADC
ATmega640/1280/1281/2560/2561
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
Gain = 10×
Gain = 200×
Gain =
Condition
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
= 50 - 200kHz
1×
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
1×
Min
50
65
(1)
Typ
0.75
2.5
1.5
1.7
1.7
0.5
18
17
10
8
8
7
9
5
9
2
2
3
(1)
Max
200
260
(1)
Units
LSB
LSB
Bits
kHz
µs
%
378
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