ATTINY461-20SUR Atmel, ATTINY461-20SUR Datasheet - Page 2

• Manufacturer Part Number: ATTINY461-20SUR
• Description: MCU AVR 4KB FLASH 20MHZ 20SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY461-20SUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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.
ATtiny261/461/861
(ADC8/OC1D/CLKO/XTAL2/PCINT13) PB5
(ADC7/OC1D/CLKI/XTAL1/PCINT12) PB4
Pinout ATtiny261/461/861 and ATtiny261V/461V/861V
(ADC8/OC1D/CLKO/XTAL2/PCINT13) PB5
(ADC7/OC1D/CLKI/XTAL1/PCINT12) PB4
(SCK/USCK/SCL/OC1B/PCINT10) PB2
(MOSI/DI/SDA/OC1A/PCINT8) PB0
(ADC10/RESET/PCINT15) PB7
(MISO/DO/OC1A/PCINT9) PB1
(OC1B/PCINT11) PB3
(ADC9/INT0/T0/PCINT14) PB6
(OC1B/PCINT11) PB3
GND
VCC
NC
NC
NC
1
2
3
4
5
6
7
8
GND
VCC
1
2
3
4
5
6
7
8
9
10
PDIP/SOIC
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)
2588E–AVR–08/10