ATTINY861-20PU Atmel, ATTINY861-20PU Datasheet - Page 69
![Microcontrollers (MCU) 8kB Flash 0.512kB EEPROM 16 I/O Pins](/photos/16/13/161304/pdip20_sml.jpg)
ATTINY861-20PU
Manufacturer Part Number
ATTINY861-20PU
Description
Microcontrollers (MCU) 8kB Flash 0.512kB EEPROM 16 I/O Pins
Manufacturer
Atmel
Specifications of ATTINY861-20PU
Processor Series
ATTINY8x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
2-Wire/SPI/USI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
16
Number Of Timers
2
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
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
11-ch x 10-bit
Program Memory Type
Flash
Program Memory Size
8 KB
Package / Case
PDIP-20
Controller Family/series
AVR Tiny
Core Size
8 Bit
No. Of I/o's
16
Eeprom Memory Size
512Byte
Ram Memory Size
512Byte
Cpu Speed
20MHz
No. Of Timers
2
Rohs Compliant
Yes
Package
20PDIP
Device Core
AVR
Family Name
ATtiny
Maximum Speed
20 MHz
Ram Size
512 Byte
Operating Temperature
-40 to 85 °C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY861-20PU
Manufacturer:
Atmel
Quantity:
135
Company:
Part Number:
ATTINY861-20PU ES
Manufacturer:
ATMEL
Quantity:
215
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10.3
10.3.1
10.3.2
10.3.3
2588E–AVR–08/10
Register Description
MCUCR – MCU Control Register
PORTA – Port A Data Register
DDRA – Port A Data Direction Register
Table 10-8.
Note:
• 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
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
1. INTRC means that one of the internal RC Oscillators is selected (by the CKSEL fuses),
EXTCK means that external clock is selected (by the CKSEL fuses).
PB3/OC1B/
PCINT11
0
0
0
0
OC1B Enable
OC1B
0
PCINT11 • PCIE
0
PCINT11
7
-
R
0
7
PORTA7
R/W
0
7
DDA7
R/W
0
Overriding Signals for Alternate Functions in PB3:PB0
6
PUD
R/W
0
6
PORTA6
R/W
0
6
DDA6
R/W
0
for more details about this feature.
PB2/SCK/USCK/SCL/O
C1B/PCINT10
0
0
USI_TWO_WIRE •
USIPOS
(USI_SCL_HOLD +
PORTB2) • DDB2 •
USIPOS
OC1B Enable + USIPOS
• USI_TWO_WIRE •
DDB2
OC1B
USITC • USIPOS
PCINT10 • PCIE +
USISIE • USIPOS
0
USCK/SCL/PCINT10
5
PORTA5
R/W
0
5
DDA5
R/W
0
5
SE
R/W
0
4
PORTA4
R/W
0
4
DDA4
R/W
0
4
SM1
R/W
0
3
PORTA3
R/W
0
3
DDA3
R/W
0
3
SM0
R/W
0
PB1/MISO/DO/OC1A/
PCINT9
0
0
0
0
OC1A Enable +
USIPOS •
USI_THREE_WIRE
OC1A + (DO •
USIPOS)
0
PCINT9 • PCIE
0
PCINT9
2
PORTA2
R/W
0
2
DDA2
R/W
0
2
-
R
0
1
PORTA1
R/W
0
1
DDA1
R/W
0
1
ISC01
R
0
PB0/MOSI/DI/SDA/
OC1A/PCINT8
0
0
USI_TWO_WIRE •
USIPOS
(SDA + PORTB0) •
DDB0 • USIPOS
OC1A Enable +
(USI_TWO_WIRE •
DDB0 • USIPOS)
OC1A
0
PCINT8 • PCIE +
(USISIE • USIPOS)
0
DI/SDA/PCINT8
0
PORTA0
R/W
0
0
DDA0
R/W
0
0
ISC00
R
0
MCUCR
PORTA
DDRA
“Con-
69
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