ATMEGA644P-A15MZ Atmel, ATMEGA644P-A15MZ Datasheet - Page 336

• Manufacturer Part Number: ATMEGA644P-A15MZ
• Description: MCU AVR 64KB FLASH 16MHZ 44QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644P-A15MZ

• Package / Case: 44-VQFN Exposed Pad
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Number Of I /o: 32
• Eeprom Size: 2K x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Program Memory Size: 64KB (64K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: I²C, SPI, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

26.7
Table 26-8.
Notes:
336
Symbol
AVCC
R
V
V
V
TUE
DNL
R
INL
V
REF
INT1
INT2
REF
AIN
IN
ADC Characteristics
1. On ATmega644P, offset gain and TUE will be higher if not using idle mode.
ATmega164P/324P/644P
Parameter
Resolution
Absolute accuracy (Including
INL, DNL, quantization error,
gain and offset error)
Integral Non-Linearity
Differential Non-Linearity
Gain Error
Offset Error
Conversion Time
Clock Frequency
Analog Supply Voltage
Reference Voltage
Input Voltage
Internal Voltage Reference
Internal Voltage Reference
Reference Input Resistance
Analog Input Resistance
ADC Characteristics, Single Ended Channel
Condition
Single Ended Conversion
Single Ended
Conversion
V
ADC clock = 200 kHz
Single Ended Conversion
V
ADC clock = 200 kHz
Noise Reduction Mode
Single Ended Conversion
V
ADC clock = 200 kHz
Single Ended Conversion
V
ADC clock = 200 kHz
Single Ended
Conversion
V
ADC clock = 200 kHz
Single Ended
Conversion
V
ADC clock = 200 kHz
Free Running Conversion
Single Ended Conversion
1.1V
2.56V
REF
REF
REF
REF
REF
REF
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
(1)
(1)
(1)
CC
CC
CC
CC
CC
CC
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
V
Min
CC
GND
2.33
1.0
1.0
65
50
-4
-4
- 0.3
(1)
Typ
2.56
100
2.5
2.5
0.5
0.3
1.1
10
30
-2
2
(1)
V
CC
Max
AVCC
V
2.79
260
200
1.5
0.7
1.2
REF
4
4
4
4
+ 0.3
(1)
7674F–AVR–09/09
Units
LSB
kHz
Bits
M
k
µs
V
V
V
V
V