ATmega640 Atmel Corporation, ATmega640 Datasheet - Page 390
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
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Part Number
Manufacturer
Quantity
Price
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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:
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Manufacturer:
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Quantity:
56
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32.2.1
2549N–AVR–05/11
Supply Current of IO modules
Figure 32-10. Idle Supply Current vs. V
The tables and formulas below can be used to calculate the additional current consumption for
the different I/O modules in Active and Idle mode. The enabling or disabling of the I/O modules
are controlled by the Power Reduction Register. See
details.
Table 32-1.
PRR bit
PRUSART3
PRUSART2
PRUSART1
PRUSART0
PRTWI
PRTIM5
PRTIM4
PRTIM3
PRTIM2
PRTIM1
PRTIM0
PRSPI
PRADC
0.25
0.15
0.05
0.3
0.2
0.1
0
1.5
Additional Current Consumption for the different I/O modules (absolute values)
8.0µA
8.0µA
8.0µA
8.0µA
12µA
6.0µA
6.0µA
6.0µA
11µA
6.0µA
4.0µA
15µA
12µA
V
2
CC
= 2V, F = 1MHz
2.5
ATmega640/1280/1281/2560/2561
3
CC
(Internal RC Oscillator, 128kHz)I
V
51µA
51µA
51µA
51µA
75µA
39µA
39µA
39µA
72µA
39µA
24µA
95µA
75µA
CC
3.5
(V)
V
Typical numbers
CC
= 3V, F = 4MHz
“Power Reduction Register” on page 54
4
4.5
220µA
220µA
220µA
220µA
315µA
150µA
150µA
150µA
300µA
150µA
100µA
400µA
315µA
5
V
CC
= 5V, F = 8MHz
5.5
-40°C
25°C
85°C
390
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