ATmega644P Automotive Atmel Corporation, ATmega644P Automotive Datasheet - Page 195
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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23.5
7701E–AVR–02/11
Pin Pull-up
Figure 23-14. Power-down Supply Current vs. V
Figure 23-15. I/O Pin Pull-up Resistor Current vs. input Voltage (V
10
90
80
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
1
0
0
2.5
0
0.5
3
I/O P IN P ULL-UP RES IS TOR CURRENT vs . INP UT VOLTAGE
Atmel ATtiny24/44/84 [Preliminary]
P OWER-DOWN S UP P LY CURRENT vs . V
3.5
1
WATCHDOG TIMER ENABLED
V
V
OP
CC
V
1.5
4
CC
(V)
(V)
= 2.7V
CC
(Watchdog Timer Enabled)
4.5
2
CC
C C
2.5
= 2.7V)
5
5.5
3
125 ˚C
125 ˚C
-45 ˚C
-45 ˚C
85 ˚C
25 ˚C
25 ˚C
85 ˚C
195
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