74HC2G14 查看數據表（PDF） - Philips Electronics
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74HC2G14 Datasheet PDF : 17 Pages
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Philips Semiconductors
Inverting Schmitt-triggers
Preliminary specification
74HC2G14; 74HCT2G14
TRANSFER CHARACTERISTICS
Type 74HC2G14
Over recommended operating conditions; voltage are referenced to GND (ground = 0 V).
SYMBOL PARAMETER
TEST CONDITIONS
WAVEFORMS
VCC
(V)
Tamb (°C)
+25
−40 to +85 −40 to +125 UNIT
MIN. TYP.(1) MAX. MIN. MAX. MIN. MAX.
Vt+
positive going see Figs. 5 and 6 2.0 1.0 1.18 1.5 1.0 1.5 1.0 1.5 V
threshold
4.5 2.3 2.6 3.15 2.3 3.15 2.3 3.15 V
6.0 3.0 3.46 4.2 3.0 4.2 3.0 4.2 V
Vt−
negative going see Figs. 5 and 6 2.0 0.3 0.6 0.9 0.3 0.9 0.3 0.9 V
threshold
4.5 1.13 1.47 2.0 1.13 2.0 1.13 2.0 V
6.0 1.5 2.06 2.6 1.5 2.6 1.5 2.6 V
Vh
hysteresis
see Figs. 5 and 6 2.0 0.3 0.6 1.0 0.3 1.0 0.3 1.0 V
(Vt+ - Vt−)
4.5 0.6 1.13 1.4 0.6 1.4 0.6 1.4 V
6.0 0.8 1.40 1.7 0.8 1.7 0.8 1.7 V
Note
1. All typical values are measured at Tamb = 25 °C.
Type 74HCT2G14
Over recommended operating conditions; voltage are referenced to GND (ground = 0 V).
SYMBOL
Vt+
Vt−
Vh
PARAMETER
positive going
threshold
negative going
threshold
hysteresis
(Vt+ - Vt−)
TEST CONDITIONS
OTHER
VCC
(V)
see Figs. 5 and 6 4.5
5.5
see Figs. 5 and 6 4.5
5.5
see Figs. 5 and 6 4.5
5.5
Tamb (°C)
+25
−40 to +85 −40 to +125 UNIT
MIN. TYP.(1) MAX. MIN. MAX. MIN. MAX.
1.2 1.58 1.9 1.2 1.9 1.2 1.9 V
1.4 1.78 2.1 1.4 2.1 1.4 2.1 V
0.5 0.87 1.2 0.5 1.2 0.5 1.2 V
0.6 1.11 1.4 0.6 1.4 0.6 1.4 V
0.4 0.71 −
0.4 −
0.4 −
V
0.4 0.67 −
0.4 −
0.4 −
V
Note
1. All typical values are measured at Tamb = 25 °C.
2003 May 1
7
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