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| 74HC3G14 Datasheet, PDF (10/18 Pages) NXP Semiconductors – Inverting Schmitt-triggers | |||
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NXP Semiconductors
74HC3G14; 74HCT3G14
Triple inverting Schmitt trigger
VI 90 %
tW
negative
pulse
VM
10 %
0V
tf
VI
positive
pulse
tr
90 %
VM
10 %
0V
tW
VM
tr
tf
VM
VI
G
VCC
VO
DUT
RT
VCC
RL S1
CL
open
001aad983
Test data is given in Table 11.
Deï¬nitions for test circuit:
RT = Termination resistance should be equal to output impedance Zo of the pulse generator.
CL = Load capacitance including jig and probe capacitance.
RL = Load resistance.
S1 = Test selection switch.
Fig 11. Test circuit for measuring switching times
Table 11. Test data
Type
Input
74HC3G14
74HCT3G14
VI
GND to VCC
GND to 3.0 V
tr, tf
⤠6 ns
⤠6 ns
Load
CL
50 pF
50 pF
RL
1 kâ¦
1 kâ¦
S1 position
tPHL, tPLH
open
open
74HC_HCT3G14_3
Product data sheet
Rev. 03 â 8 May 2009
© NXP B.V. 2009. All rights reserved.
10 of 18
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