74HC14 查看數據表（PDF） - Philips Electronics
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74HC14 Datasheet PDF : 23 Pages
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Philips Semiconductors
Hex inverting Schmitt trigger
Product specification
74HC14; 74HCT14
handbook, full pagewidth
VCC
VI
PULSE
GENERATOR
VO
D.U.T.
RT
S1
RL =
1 kΩ
VCC
open
GND
CL =
50 pF
MNA742
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
open
VCC
GND
Definitions for test circuit:
RL = Load resistor.
CL = load capacitance including jig and probe capacitance.
RT = termination resistance should be equal to the output impedance Zo of the pulse generator.
Fig.15 Load circuitry for switching times.
2003 Oct 30
16
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