ATmega32A Atmel Corporation, ATmega32A Datasheet - Page 67

• 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

12.4.5
12.4.6
12.4.7
12.4.8
12.4.9
12.4.10
12.4.11
12.4.12
8155C–AVR–02/11
PORTB – Port B Data Register
DDRB – Port B Data Direction Register
PINB – Port B Input Pins Address
PORTC – Port C Data Register
DDRC – Port C Data Direction Register
PINC – Port C Input Pins Address
PORTD – Port D Data Register
DDRD – Port D Data Direction Register
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
PORTB7
PORTC7
PORTD7
PINB7
PINC7
DDB7
DDC7
DDD7
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
R
R
7
0
7
0
7
7
0
7
0
7
7
0
7
0
PORTB6
PORTC6
PORTD6
PINB6
PINC6
DDB6
DDC6
DDD6
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
R
R
6
0
6
0
6
6
0
6
0
6
6
0
6
0
PORTB5
PORTC5
PORTD5
PINB5
PINC5
DDB5
DDC5
DDD5
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
5
0
5
0
R
5
0
5
0
R
5
5
5
0
5
0
PORTB4
PORTC4
PORTD4
DDB4
PINB4
DDC4
PINC4
DDD4
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
4
0
4
0
R
4
0
4
0
R
4
4
4
0
4
0
PORTB3
PORTC3
PORTD3
DDB3
PINB3
DDC3
PINC3
DDD3
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
3
0
3
0
R
3
0
3
0
R
3
3
3
0
3
0
PORTB2
PORTC2
PORTD2
DDB2
PINB2
DDC2
PINC2
DDD2
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
2
0
2
0
R
2
0
2
0
R
2
2
2
0
2
0
PORTB1
PORTC1
PORTD1
DDB1
PINB1
DDC1
PINC1
DDD1
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
1
0
1
0
R
1
0
1
0
R
1
1
1
0
1
0
ATmega32A
PORTB0
PORTC0
PORTD0
DDB0
PINB0
DDC0
PINC0
DDD0
R/W
R/W
R/W
R/W
R/W
R/W
N/A
N/A
0
0
0
0
R
0
0
0
0
R
0
0
0
0
0
0
PORTB
PORTC
PORTD
DDRB
DDRC
DDRD
PINB
PINC
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