ATmega644P Automotive Atmel Corporation, ATmega644P Automotive Datasheet - Page 182
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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22.5
Table 22-6.
182
Symbol Parameter
TUE
R
DNL
Vref
V
INL
V
AIN
INT
IN
ADC Characteristics – Preliminary Data
Atmel ATtiny24/44/84 [Preliminary]
Resolution
Absolute accuracy (Including
INL, DNL, quantization error,
gain and offset error)
Integral Non-linearity (INL)
Differential Non-linearity (DNL)
Gain Error
Offset Error
Conversion Time
Clock Frequency
External Voltage Reference
Input Voltage
Internal Voltage Reference
Analog Input Resistance
ADC Characteristics, Single Ended Channels. -40°C - 125°C
Single-ended conversion
Single-ended conversion
V
ADC clock = 200kHz
Single-ended conversion
V
ADC clock = 200kHz
Noise Reduction Mode
Single-ended conversion
V
ADC clock = 200kHz
Single-ended conversion
V
ADC clock = 200kHz
Single-ended conversion
V
ADC clock = 200kHz
Single-ended conversion
V
ADC clock = 200kHz
Free running conversion
REF
REF
REF
REF
REF
REF
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
Condition
CC
CC
CC
CC
CC
CC
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
GND
2.56
Min
-5.0
-3.5
1.0
65
50
Typ
-3.0
100
2.0
2.0
0.5
0.3
1.5
1.1
10
AVCC
V
Max
260
200
4.0
4.0
1.5
0.7
5.0
1.2
3.5
REF
7701E–AVR–02/11
Units
LSB
LSB
LSB
LSB
LSB
LSB
Bits
kHz
M
µs
V
V
V
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