Datasheet

2003 Dec 12 13
Philips Semiconductors Product specification
Quad 2-input OR gate 74HC32; 74HCT32
AC WAVEFORMS
handbook, halfpage
MNA735
t
PLH
t
PHL
V
M
V
M
90%
10%
V
M
V
M
nY output
nA, nB input
V
I
GND
V
OH
V
OL
t
TLH
t
THL
Fig.6 Waveforms showing the input (nA, nB) to output (nY) propagation delays and the output transition times.
74HC32 : V
M
= 50%; V
I
= GND to V
CC
.
74HCT32: V
M
= 1.3 V; V
I
= GND to 3 V.
handbook, full pagewidth
open
GND
V
CC
V
CC
V
I
V
O
MNA245
D.U.T.
C
L
R
T
1000 Ω
PULSE
GENERATOR
S1
Fig.7 Load circuitry for switching times.
TEST S1
t
PLH
/t
PHL
open
t
PLZ
/t
PZL
V
CC
t
PHZ
/t
PZH
GND
Definitions for test circuit:
C
L
= Load capacitance including jig and probe capacitance.
R
T
= Termination resistance should be equal to the output impedance Z
o
of the pulse generator.