ATTINY44-20PU Atmel, ATTINY44-20PU Datasheet - Page 200

• Manufacturer Part Number: ATTINY44-20PU
• Description: IC MCU AVR 4K FLASH 20MHZ 14-DIP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY44-20PU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 12
• 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 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 14-DIP (0.300", 7.62mm)
• Package: 14PDIP
• Device Core: AVR
• Family Name: ATtiny
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 12
• Interface Type: SPI/USI
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 2
• For Use With: ATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

21.8
200
Pin Threshold and Hysteresis
ATtiny24/44/84
Figure 21-28. I/O Pin Input Threshold Voltage vs. V
Figure 21-29. I/O Pin Input threshold Voltage vs. V
3.5
2.5
1.5
0.5
2.5
1.5
0.5
3
2
1
0
2
1
0
1.5
1.5
2
2
I/O PIN INPUT THRESHOLD VOLTAGE vs. V
I/O PIN INPUT THRESHOLD VOLTAGE vs. V
2.5
2.5
VIH, IO PIN READ AS '1'
VIL, IO PIN READ AS '0'
3
3
V
V
CC
CC
3.5
3.5
(V)
(V)
CC
CC
(V
(V
4
4
IL
IH
, IO Pin Read as ‘0’)
, IO Pin Read as ‘1’)
4.5
4.5
CC
CC
5
5
5.5
5.5
-40 ˚C
-40 ˚C
8006K–AVR–10/10
85 ˚C
25 ˚C
85 ˚C
25 ˚C