attiny261a-xu ATMEL Corporation, attiny261a-xu Datasheet - Page 2

• Manufacturer Part Number: attiny261a-xu
• Description: 8-bit Avr Microcontroller With 2/4/8k Bytes In-system Programmable Flash
• Manufacturer: ATMEL Corporation

1. Pin Configurations
Figure 1-1.
Note:
2
To ensure mechanical stability the center pad underneath the QFN/MLF package should be soldered to ground on the board.
ATtiny261A/461A/861A
Pinout ATtiny261A/461A/861A
(ADC8/OC1D/CLKO/XTAL2/PCINT13) PB5
(ADC7/OC1D/CLKI/XTAL1/PCINT12) PB4
(ADC8/OC1D/CLKO/XTAL2/PCINT13) PB5
(ADC7/OC1D/CLKI/XTAL1/PCINT12) PB4
(SCK/USCK/SCL/OC1B/PCINT10) PB2
(MOSI/DI/SDA/OC1A/PCINT8) PB0
(MISO/DO/OC1A/PCINT9) PB1
(ADC10/RESET/PCINT15) PB7
(ADC9/INT0/T0/PCINT14) PB6
(OC1B/PCINT11) PB3
(OC1B/PCINT11) PB3
GND
VCC
NC
NC
NC
1
2
3
4
5
6
7
8
GND
VCC
PDIP/SOIC/TSSOP
1
2
3
4
5
6
7
8
9
10
QFN/MLF
20
19
18
17
16
15
14
13
12
11
PA0 (ADC0/DI/SDA/PCINT0)
PA1 (ADC1/DO/PCINT1)
PA2 (ADC2/INT1/USCK/SCL/PCINT2)
PA3 (AREF/PCINT3)
AGND
AVCC
PA4 (ADC3/ICP0/PCINT4)
PA5 (ADC4/AIN2/PCINT5)
PA6 (ADC5/AIN0/PCINT6)
PA7 (ADC6/AIN1/PCINT7)
24
23
22
21
20
19
18
17
NC
PA2 (ADC2/INT1/USCK/SCL/PCINT2)
PA3 (AREF/PCINT3)
AGND
NC
NC
AVCC
PA4 (ADC3/ICP0/PCINT4)
8197B–AVR–01/10