ATMEGA128A-AN Atmel, ATMEGA128A-AN Datasheet - Page 87

• Manufacturer Part Number: ATMEGA128A-AN
• Description: IC MCU AVR 128K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA128A-AN

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP
• Core: AVR8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12.4.2
12.4.3
12.4.4
12.4.5
12.4.6
12.4.7
12.4.8
12.4.9
8151H–AVR–02/11
PORTA - Port A Data Register
DDRA - Port A Data Direction Register
PINA - Port A Input Pins Address
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
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
7
PINA7
R
N/A
PORTB7
PORTA7
PORTC7
PINB7
DDC7
DDA7
DDB7
R/W
R/W
R/W
R/W
R/W
R/W
N/A
R
7
0
7
0
7
0
7
7
0
7
0
7
0
PORTB6
PORTA6
PORTC6
PINA6
PINB6
DDC6
DDA6
DDB6
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
6
0
6
0
6
0
PORTB5
PORTA5
PORTC5
PINA5
PINB5
DDC5
DDA5
DDB5
R/W
R/W
R/W
R/W
R/W
N/A
R/W
N/A
R
5
0
R
5
0
5
5
0
5
0
5
5
0
5
0
PORTB4
PORTA4
PORTC4
PINB4
PINA4
DDC4
DDA4
DDB4
R/W
R/W
R/W
R/W
R/W
N/A
R/W
N/A
R
4
0
4
0
R
4
0
4
4
0
4
4
0
4
0
PORTB3
PORTA3
PORTC3
PINB3
DDC3
PINA3
DDA3
DDB3
R/W
R/W
R/W
R/W
R/W
N/A
R/W
N/A
R
3
0
3
0
R
3
0
3
3
0
3
3
0
3
0
PORTB2
PORTA2
PORTC2
PINB2
DDC2
PINA2
DDA2
DDB2
R/W
R/W
R/W
R/W
R/W
N/A
R/W
N/A
R
2
0
2
0
R
2
0
2
2
0
2
2
0
2
0
PORTA1
PORTB1
PORTC1
PINB1
DDC1
ATmega128A
PINA1
DDA1
DDB1
R/W
R/W
R/W
R/W
N/A
N/A
R/W
R/W
R
1
0
1
0
R
1
0
1
1
0
1
1
0
1
0
PORTA0
PORTB0
PORTC0
PINB0
DDC0
PINA0
DDA0
DDB0
R/W
R/W
R/W
R/W
N/A
N/A
R/W
R/W
R
0
0
0
0
R
0
0
0
0
0
0
0
0
0
0
PORTA
PORTB
DDRC
PORTC
DDRA
DDRB
PINB
PINA
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