Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
74HC14; 74HCT14
S1
V
handbook, full pagewidth
CC
open
V
CC
GND
R
=
L
1 kΩ
V
V
O
I
PULSE
GENERATOR
D.U.T.
C
50 pF
=
L
R
T
MNA742
TEST
S1
tPLH/tPHL
open
VCC
Definitions for test circuit:
RL = Load resistor.
tPLZ/tPZL
CL = load capacitance including jig and probe capacitance.
tPHZ/tPZH
GND
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