ATMEGA168-20AUR Atmel, ATMEGA168-20AUR Datasheet - Page 330

• Manufacturer Part Number: ATMEGA168-20AUR
• Description: MCU AVR 16KB FLASH 20MHZ 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA168-20AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K 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: 32-TQFP, 32-VQFP
• Package: 32TQFP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 23
• Interface Type: SPI/TWI/USART
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• For Use With: ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

330
ATmega48/88/168
Figure 29-29. I/O Pin Input Threshold Voltage vs. V
Figure 29-30. I/O Pin Input Hystreresis vs. Vcc
2.5
1.5
0.5
0.6
0.5
0.4
0.3
0.2
0.1
3
2
1
0
0
1.5
1.5
2
2
2.5
2.5
3
3
V
V
CC
CC
3.5
3.5
(V)
(V)
4
4
CC
(VIL, I/O Pin Read As '0')
4.5
4.5
5
5
5.5
5.5
-40°C
-40°C
25°C
85°C
25°C
85°C
2545S–AVR–07/10