ATTINY461-15MZ Atmel, ATTINY461-15MZ Datasheet - Page 69

• Manufacturer Part Number: ATTINY461-15MZ
• Description: MCU AVR 4K FLASH 15MHZ 32-QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY461-15MZ

• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Number Of I /o: 16
• Eeprom Size: 256 x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Program Memory Size: 4KB (4K x 8)
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: USI
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12.4
12.4.1
12.4.2
12.4.3
12.4.4
12.4.5
12.4.6
12.4.7
7753F–AVR–01/11
Register Description
MCUCR – MCU Control Register
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
• Bit 6 – PUD: Pull-up Disable
When this bit is written to one, the pull-ups in the I/O ports are disabled even if the DDxn and
PORTxn Registers are configured to enable the pull-ups ({DDxn, PORTxn} = 0b01). See
figuring the Pin” on page 56
Bit
0x35 (0x55)
Read/Write
Initial Value
Bit
0x1B (0x3B)
Read/Write
Initial Value
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
7
-
R
0
7
PORTA7
R/W
0
7
DDA7
R/W
0
7
PINA7
R/W
N/A
7
PORTB7
R/W
0
7
DDB7
R/W
0
7
PINB7
R/W
N/A
6
PUD
R/W
0
6
PINA6
R/W
N/A
6
PORTA6
R/W
0
6
DDA6
R/W
0
6
PORTB6
R/W
0
6
DDB6
R/W
0
6
PINB6
R/W
N/A
for more details about this feature.
5
PORTA5
R/W
0
5
DDA5
R/W
0
5
PINA5
R/W
N/A
5
DDB5
R/W
0
R/W
N/A
5
PORTB5
R/W
0
5
PINB5
5
SE
R/W
0
ATtiny261/ATtiny461/ATtiny861
4
PINA4
R/W
N/A
4
PORTA4
R/W
0
4
DDA4
R/W
0
4
PORTB4
R/W
0
4
DDB4
R/W
0
4
PINB4
R/W
N/A
4
SM1
R/W
0
R/W
N/A
R/W
R/W
3
PINA3
R/W
3
PORTA3
0
3
DDA3
0
3
PORTB3
R/W
0
3
DDB3
0
3
PINB3
R/W
N/A
3
SM0
R/W
0
2
PINA2
R/W
N/A
2
PORTA2
R/W
0
2
DDA2
R/W
0
2
DDB2
R/W
0
2
PINB2
R/W
N/A
2
PORTB2
R/W
0
2
-
R
0
1
PINA1
R/W
N/A
1
PORTA1
R/W
0
1
DDA1
R/W
0
1
PORTB1
R/W
0
1
DDB1
R/W
0
1
PINB1
R/W
N/A
1
ISC01
R
0
0
PINA0
R/W
N/A
0
PORTA0
R/W
0
0
DDA0
R/W
0
0
DDB0
R/W
0
0
PINB0
R/W
N/A
0
PORTB0
R/W
0
0
ISC00
R
0
PINA
MCUCR
PORTA
DDRA
DDRB
PINB
PORTB
“Con-
69