ATTINY261A-SU Atmel, ATTINY261A-SU Datasheet - Page 68

• Manufacturer Part Number: ATTINY261A-SU
• Description: IC, MCU, 8BIT, 2K FLASH, 20SOIC
• Manufacturer: Atmel

Specifications of ATTINY261A-SU

• Controller Family/series: ATtiny
• No. Of I/o's: 16
• Eeprom Memory Size: 128Byte
• Ram Memory Size: 128Byte
• Cpu Speed: 20MHz
• No.: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 2KB
• Oscillator Type: External, Internal
• Rohs Compliant: Yes

10.3.4
10.3.5
10.3.6
10.3.7
68
ATtiny261A/461A/861A
PINA – Port A Input Pins Address
PORTB – Port B Data Register
DDRB – Port B Data Direction Register
PINB – Port B Input Pins Address
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
R/W
R/W
R/W
R/W
7
PINA7
N/A
7
PORTB7
0
7
DDB7
0
7
PINB7
N/A
6
PINA6
R/W
N/A
6
PORTB6
R/W
0
6
DDB6
R/W
0
6
PINB6
R/W
N/A
5
PINA5
R/W
N/A
5
PORTB5
R/W
0
5
DDB5
R/W
0
5
PINB5
R/W
N/A
4
PORTB4
R/W
0
4
DDB4
R/W
0
4
PINA4
R/W
N/A
4
PINB4
R/W
N/A
3
PINA3
R/W
N/A
3
PORTB3
R/W
0
3
DDB3
R/W
0
3
PINB3
R/W
N/A
2
PORTB2
R/W
0
2
DDB2
R/W
0
2
PINA2
R/W
N/A
2
PINB2
R/W
N/A
1
PORTB1
R/W
0
1
DDB1
R/W
0
1
PINA1
R/W
N/A
1
PINB1
R/W
N/A
0
PORTB0
0
0
DDB0
0
0
R/W
N/A
R/W
R/W
0
R/W
N/A
PINA0
PINB0
8197B–AVR–01/10
PORTB
DDRB
PINA
PINB