ATMEGA64_14 Datasheet, PDF (382/414 Pages) ATMEL Corporation – High-performance, Low-power Atmel AVR

ATmega64(L)
Pin Thresholds and
Hysteresis
Figure 241. I/O Pin Input Threshold Voltage vs. V_CC (V_IH, I/O Pin Read as '1')
I/O PIN INPUT THRESHOLD VOLTAGE vs. Vcc
VIH, IO PIN READ AS '1'
2.4
2.2
-40 °C
25 °C
2
85 °C
105 °C
1.8
1.6
1.4
1.2
1
2.5
3
3.5
4
4.5
5
5.5
Vcc (V)
Figure 242. I/O Pin Input Threshold Voltage vs. V_CC (V_IL, I/O Pin Read as '0')
I/O PIN INPUT THRESHOLD VOLTAGE vs. Vcc
VIL, IO PIN READ AS '0'
1.5
-40 °C
1.4
25 °C
85 °C
105 °C
1.3
1.2
1.1
1
0.9
0.8
2.5
3
3.5
4
4.5
5
5.5
V_CC (V)
2490R–AVR–02/2013
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