74HC1G14 查看數據表（PDF） - Philips Electronics
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74HC1G14 Datasheet PDF : 20 Pages
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Philips Semiconductors
Inverting Schmitt-triggers
Product specification
74HC1G14; 74HCT1G14
Family 74HCT1G14
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
TEST CONDITIONS
Tamb (°C)
SYMBOL
PARAMETER
−40 to +85
−40 to +125 UNIT
WAVEFORMS VCC (V) MIN. TYP.(1) MAX. MIN. MAX.
VT+
positive-going threshold see Figs 5 and 6 4.5
1.2 1.55 1.9 1.2 1.9 V
5.5
1.4 1.80 2.1 1.4 2.1 V
VT−
negative-going threshold see Figs 5 and 6 4.5
0.5 0.76 1.2 0.5 1.2 V
5.5
0.6 0.90 1.4 0.6 1.4 V
VH
hysteresis (VT+ − VT−) see Figs 5 and 6 4.5
0.4 0.80 −
0.4 −
V
5.5
0.4 0.90 −
0.4 −
V
Note
1. All typical values are measured at Tamb = 25 °C.
AC CHARACTERISTICS
Type 74HC1G14
GND = 0 V; tr = tf = 6.0 ns; CL = 50 pF.
TEST CONDITIONS
Tamb (°C)
SYMBOL
PARAMETER
WAVEFORMS
−40 to +85
−40 to +125 UNIT
VCC (V) MIN. TYP.(1) MAX. MIN. MAX.
tPHL/tPLH propagation delay
see Figs 12 and 13 2.0
−
A to Y
4.5
−
6.0
−
25
155 −
12
31
−
11
26
−
190 ns
38
ns
32
ns
Note
1. All typical values are measured at Tamb = 25 °C.
Type 74HCT1G14
GND = 0 V; tr = tf = 6.0 ns; CL = 50 pF.
TEST CONDITIONS
Tamb (°C)
SYMBOL
PARAMETER
WAVEFORMS
−40 to +85
−40 to +125 UNIT
VCC(V) MIN. TYP.(1) MAX. MIN. MAX.
tPHL/tPLH propagation delay
see Figs 12 and 13 4.5
−
A to Y
17
43
−
51
ns
Note
1. All typical values are measured at Tamb = 25 °C.
2002 May 15
7
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