ATMEGA8_14 Datasheet, PDF (294/331 Pages) ATMEL Corporation – High-performance, Low-power Atmel

ATmega8(L)
Figure 0-24. I/O Pin Input Threshold Voltage vs. V_CC (V_IL, I/O Pin Read as “0”)
2
1.5
1
0.5
0
2.5
I/O PIN INPUT THRESHOLD VOLTAGE vs. V_CC
VIL, IO PIN READ AS '0'
3
3.5
4
4.5
5
V_CC (V)
Figure 0-25. I/O Pin Input Hysteresis vs. V_CC
-40°C
25°C
85°C
105°C
5.5
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.5
I/O PIN INPUT HYSTERESIS vs. V_CC
3
3.5
4
4.5
5
V_CC (V)
105°C
85°C
-40°C
25°C
5.5
2486AA–AVR–02/2013
294