ATMEGA8_08 Datasheet, PDF (270/308 Pages) ATMEL Corporation – 8-bit with 8K Bytes In-System Programmable Flash

Figure 159. Reset Pin as I/O – Input Threshold Voltage vs. V_CC (V_IL, I/O Pin Read as “0”)
2.5
2
1.5
1
0.5
0
2.5
RESET PIN AS I/O - INPUT THRESHOLD VOLTAGE vs. V_CC
VIL, RESET PIN READ AS '0'
85°C
25°C
-40°C
3
3.5
4
4.5
5
5.5
V_CC (V)
Figure 160. Reset Pin as I/O – Pin Hysteresis vs. V_CC
2
1.5
1
0.5
0
2.5
RESET PIN AS I/O - PIN HYSTERESIS vs. V_CC
3
3.5
4
4.5
5
V_CC (V)
-40°C
85°C
25°C
5.5
270 ATmega8(L)
2486T–AVR–05/08