ATmega644P Automotive Atmel Corporation, ATmega644P Automotive Datasheet - Page 206
ATmega644P Automotive
Manufacturer Part Number
ATmega644P Automotive
Description
Manufacturer
Atmel Corporation
Specifications of ATmega644P Automotive
Flash (kbytes)
64 Kbytes
Pin Count
44
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Spi
3
Twi (i2c)
1
Uart
2
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
Yes
Temp. Range (deg C)
-40 to 125
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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23.10 Current Consumption of Peripheral Units
206
Atmel ATtiny24/44/84 [Preliminary]
Figure 23-36. ADC Current vs. V
Figure 23-37. AREF External Reference Current vs. V
700
600
500
400
300
200
100
14
12
10
8
6
4
2
0
0
1.5
2.5
AREF CURRENT vs . AREF VOLTAGE WHEN US ED AS ADC REFERENCE
2
3
2.5
CC
3.5
ADC CURRENT vs . V
3
4.0 MHZ FREQUENCY
V
CC
AREF (V)
4
(V)
(Vc c =5.5V)
3.5
CC
C C
4.5
4
4.5
5
5
25 ˚C
7701E–AVR–02/11
5.5
125 ˚C
-40 ˚C
85 ˚C
25 ˚C
5.5
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