ATmega32A Atmel Corporation, ATmega32A Datasheet - Page 305

• Manufacturer Part Number: ATmega32A
• Manufacturer: Atmel Corporation

Specifications of ATmega32A

• 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

Table 27-5.
8155C–AVR–02/11
AVCC
V
V
V
Symbol
REF
IN
DIFF
Parameter
Resolution
Absolute Accuracy
Integral Non-Linearity (INL)
(Accuracy after calibration for Offset and
Gain Error)
Gain Error
Offset Error
Clock Frequency
Conversion Time
Analog Supply Voltage
Reference Voltage
Input voltage
Input differential voltage
ADC conversion output
Input bandwith
ADC Characteristics, Differential channels, T
Condition
Gain = 1x
Gain = 10x
Gain = 200x
Gain = 1x
V
ADC clock = 50 - 200kHz
Gain = 10x
V
ADC clock = 50 - 200kHz
Gain = 200x
V
ADC clock = 50 - 200kHz
Gain = 1x
V
ADC clock = 50 - 200kHz
Gain = 10x
V
ADC clock = 50 - 200kHz
Gain = 200x
V
ADC clock = 50 - 200kHz
Gain = 1x
Gain = 10x
Gain = 200x
Gain = 1x
V
ADC clock = 50 - 200kHz
Gain = 10x
V
ADC clock = 50 - 200kHz
Gain = 200x
V
ADC clock = 50 - 200kHz
REF
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
= 4V, V
= -40°C to 85°C
CC
CC
CC
CC
CC
CC
CC
CC
CC
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V
V
-V
CC
REF
GND
-511
Min
2.0
50
65
- 0.3
/Gain
(1)
0.75
0.75
Typ
1.6
1.5
0.2
1.5
4.5
17
16
7
2
1
4
ATmega32A
V
AVCC - 0.5
V
CC
REF
AVCC
Max
200
260
511
+ 0.3
10
10
10
/Gain
(2)
/
Units
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
Bits
Bits
Bits
kHz
kHz
µs
%
%
%
V
V
V
V
305