ATTINY261A-SUR Atmel, ATTINY261A-SUR Datasheet - Page 270

• Manufacturer Part Number: ATTINY261A-SUR
• Description: MCU AVR 2KB FLASH 20MHZ 20SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY261A-SUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 2KB (1K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 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

20.4.10
270
ATtiny261A/461A/861A
Internal Oscillators
Figure 20-149.Frequency of Watchdog Oscillator vs. V
Figure 20-150.Frequency of Watchdog Oscillator vs. Temperature
115000
110000
105000
100000
115000
110000
105000
100000
1.5
-40
2
-20
WATCHDOG OSCILLATOR FREQUENCY vs. SUPPLY VOLTAGE
WATCHDOG OSCILLATOR FREQUENCY vs. TEMPERATURE
2.5
0
3
20
Temperature
V
CC
3.5
(V)
40
CC
4
60
4.5
80
5
100
8197B–AVR–01/10
5.5
1.8 V
3.0 V
5.0 V
-40 °C
25 °C
85 °C