ATmega644P Automotive Atmel Corporation, ATmega644P Automotive Datasheet - Page 342

• Manufacturer Part Number: ATmega644P Automotive
• 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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ATmega164P/324P/644P
Figure 27-7. Idle Supply Current vs. Frequency (1 - 20 MHz) - Temperature = 125°C
Figure 27-8. Idle Supply Current vs. Vcc (Internal RC Oscillator 8 MHz)
3.5
2.5
1.5
0.5
3
2
1
0
2.5
10
9
8
7
6
5
4
3
2
1
0
0
3
2
4
3.5
IDLE SUPPLY CURRENT vs. FREQUENCY
IDLE S UP P LY CURRENT vs . V
6
INTERNAL RC OSCILLATOR, 8 MHz
8
Frequency (MHz)
V
CC
Temp = 125°c
4
10
(V)
12
4.5
14
C C
16
5
18
20
7674F–AVR–09/09
5.5
125 ˚C
-40 ˚C
85 ˚C
25 ˚C
5.5
5
4.5
3.3
3
2.7