ATMEGA325A-AUR Atmel, ATMEGA325A-AUR Datasheet - Page 330

• Manufacturer Part Number: ATMEGA325A-AUR
• Description: IC MCU AVR 32K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA325A-AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

28. ADC Characteristics
Table 28-1.
330
Symbol
AVCC
V
V
REF
IN
ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/645
Parameter
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
Analog Supply Voltage
Reference Voltage
Pin Input Voltage
Input Range
Input Bandwidth
ADC Characteristics
Single Ended Conversion
Differential Conversion
Single Ended Conversion
V
ADC clock = 200kHz
Single Ended Conversion
V
ADC clock = 1MHz
Single Ended Conversion
V
ADC clock = 200kHz
Noise Reduction Mode
Single Ended Conversion
V
ADC clock = 1MHz
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
Single Ended Conversion
Single Ended Conversion
Differential Conversion
Single Ended Channels
Differential Channels
Single Ended Channels
Differential Channels
Single Ended Channels
Differential Channels
REF
REF
REF
REF
REF
REF
REF
REF
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
Condition
CC
CC
CC
CC
CC
CC
CC
CC
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
= 4V,
(1)
-0.85V
V
CC
GND
GND
GND
Min
1.0
1.0
13
50
- 0.3
REF
1.25
0.25
1.25
38.5
Typ
2.5
2.5
10
8
2
2
2
4
AVCC - 0.5
V
CC
AVCC
AVCC
1000
Max
V
V
V
260
2.5
REF
REF
REF
+ 0.3
8285B–AVR–03/11
Units
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
Bits
Bits
kHz
kHz
kHz
µs
V
V
V
V
V
V
V