ATmega32 Atmel Corporation, ATmega32 Datasheet - Page 293

• Manufacturer Part Number: ATmega32
• Manufacturer: Atmel Corporation

Specifications of ATmega32

• Flash (kbytes): 32 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: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• 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): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• 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: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

ADC Characteristics
Table 121. ADC Characteristics, Single Ended channels, T
Notes:
2503Q–AVR–02/11
AVCC
V
V
V
R
R
Symbol
REF
IN
INT
REF
AIN
1. Minimum for AVCC is 2.7V.
2. Maximum for AVCC is 5.5V.
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
Clock Frequency
Conversion Time
Analog Supply Voltage
Reference Voltage
Input voltage
ADC conversion output
Input bandwith
Internal Voltage Reference
Reference Input Resistance
Analog Input Resistance
Condition
Single Ended 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
REF
REF
REF
REF
REF
REF
REF
REF
A
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= 4V, V
= -40°C to 85°C
CC
CC
CC
CC
CC
CC
CC
CC
= 4V
= 4V
= 4V
= 4V
= 4V
= 4V
= 4V
= 4V
V
CC
GND
Min
2.0
2.3
50
13
- 0.3
0
(1)
0.75
0.25
0.75
0.75
38.5
2.56
Typ
100
1.5
1.5
10
32
3
3
ATmega32(L)
V
CC
AVCC
1000
1023
V
Max
260
2.7
+ 0.3
REF
(2)
Units
LSB
LSB
Bits
kHz
kHz
MΩ
kΩ
µs
V
V
293