ATMEGA64A-ANR Atmel, ATMEGA64A-ANR Datasheet - Page 89

• Manufacturer Part Number: ATMEGA64A-ANR
• Description: IC MCU AVR 64K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64A-ANR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.4.2
13.4.3
13.4.4
13.4.5
13.4.6
13.4.7
13.4.8
13.4.9
8160C–AVR–07/09
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
PINC – Port C Input Pins Address
In ATmega103 compatibility mode, DDRC and PINC Registers are initialized to being Push-pull
Zero Output. The port pins assumes their Initial Value, even if the clock is not running. Note that
Bit
0x1A (0x3A)
Read/Write
Initial Value
Bit
0x19 (0x39)
Read/Write
Initial Value
Bit
0x18 (0x38)
Read/Write
Initial Value
Bit
0x17 (0x37)
Read/Write
Initial Value
Bit
0x16 (0x36)
Read/Write
Initial Value
Bit
0x15 (0x35)
Read/Write
Initial Value
Bit
0x14 (0x34)
Read/Write
Initial Value
Bit
0x13 (0x33)
Read/Write
Initial Value
PORTB7
PORTC7
PINA7
PINB7
PINC7
DDA7
DDB7
DDC7
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
7
0
7
7
0
7
0
7
7
0
7
0
7
PORTB6
PORTC6
PINA6
PINB6
PINC6
DDA6
DDB6
DDC6
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
0
0
6
6
6
0
6
0
6
6
6
0
6
PORTC5
PORTB5
PINA5
PINB5
PINC5
DDA5
DDB5
DDC5
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
5
0
5
5
0
5
0
5
5
0
5
0
5
PORTB4
PORTC4
PINA4
PINB4
PINC4
DDA4
DDB4
DDC4
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
4
0
4
4
0
4
0
4
4
0
4
0
4
PORTB3
PORTC3
PINA3
PINB3
PINC3
DDA3
DDB3
DDC3
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
3
0
3
3
0
3
0
3
3
0
3
0
3
PORTC2
PORTB2
PINA2
PINB2
PINC2
DDA2
DDB2
DDC2
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
2
0
2
2
2
0
2
2
0
2
0
2
0
PORTC1
PORTB1
PINA1
PINB1
PINC1
DDA1
DDB1
DDC1
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
1
0
1
1
1
0
1
1
0
1
0
1
0
ATmega64A
PORTB0
PORTC0
PINA0
PINB0
PINC0
DDA0
DDB0
DDC0
R/W
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
0
0
0
0
0
0
0
0
0
0
0
0
0
PORTC
PORTB
DDRA
DDRB
DDRC
PINA
PINB
PINC
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