ATTINY861-15MZ Atmel, ATTINY861-15MZ Datasheet - Page 68

• Manufacturer Part Number: ATTINY861-15MZ
• Description: MCU AVR 8K FLASH 15MHZ 32-QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY861-15MZ

• 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: 512 x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Program Memory Size: 8KB (8K x 8)
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: USI
• Core Size: 8-Bit
• Processor Series: ATTINY8x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SPI
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRMC320
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 11 Channel
• 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
68
Register Description
ATtiny261/461/861
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 54
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
R/W
R/W
7
PORTA7
R/W
0
7
DDA7
R/W
0
7
PINA7
N/A
7
PORTB7
R/W
0
7
DDB7
R/W
0
7
PINB7
N/A
6
PUD
R/W
0
6
PORTA6
R/W
0
6
DDA6
R/W
0
6
PINA6
R/W
N/A
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
PORTB5
R/W
0
5
DDB5
R/W
0
5
PINB5
R/W
N/A
5
SE
R/W
0
4
PORTA4
R/W
0
4
DDA4
R/W
0
4
PORTB4
R/W
0
4
DDB4
R/W
0
4
PINA4
R/W
N/A
4
PINB4
R/W
N/A
R/W
4
SM1
0
3
PORTA3
R/W
0
3
DDA3
R/W
0
3
PINA3
R/W
N/A
3
PORTB3
R/W
0
3
DDB3
R/W
0
3
PINB3
R/W
N/A
3
SM0
R/W
0
2
PORTA2
R/W
0
2
DDA2
R/W
0
2
PORTB2
R/W
0
2
DDB2
R/W
0
2
PINA2
R/W
N/A
2
PINB2
R/W
N/A
2
-
R
0
1
PORTA1
R/W
0
1
DDA1
R/W
0
1
PORTB1
R/W
0
1
DDB1
R/W
0
1
PINA1
R/W
N/A
1
PINB1
R/W
N/A
1
ISC01
R
0
0
PORTA0
0
0
DDA0
0
0
PORTB0
0
0
DDB0
0
R/W
R/W
0
R/W
N/A
R/W
R/W
0
R/W
N/A
PINA0
PINB0
0
ISC00
R
0
2588B–AVR–11/06
MCUCR
PORTA
DDRA
PORTB
DDRB
PINA
PINB
”Con-