Datasheet
TYPES
SN7414,
SN74LS14,
SN!5414,
SN54LS14
HEX SCHMITT-TRIGGER INVERTERS
FROM
OUTPUT
UNDER
TEST
PARAMETER MEASUREMENT INFORMATION
TEST
POINT
“cc
INPUT
LOAD CIRCUIT
VOLTAGE
WAVEFORMS
NOTES
A. All diodes
arc
lN3064
or
equmalent.
8.
CL
Includer
probe and
119
capacntance
C. Generator
characterirtics
and
reference
volrage
arc
Generator Charactcrirtics
Refersnce Voltages
*o,t
PRR
fr
tf
VI
ref(H)
VI
ref(Lj
vo
ref
SN54’/SN74’
50
52
1 MHz
10 ns
10 ns
1.7 v
0.9 v
1.5 v
SN54LSlSN74LS
50
$2
1 MHz
15 ns
6 ns
1.6 V
0.8 V 1.3 v
TYPICAL CHARACTERISTICS OF ‘14 CIRCUITS
POSITIVE-GOING THRESHOLD VOLTAGE
NEGATIVE-GOING THRESHOLD VOLTAGE
FREE-AIR
T&PERAT”RE
FREE-AIR
T&PERAT”RE
> 1.70-
> 0.90
1
1
g
;:
-’
I
I
vm=5v
I
I
1
/
I
b
0
0.88
>
o
1.67
-
0
0.87
4
2
1.66
-
3 0.86
L
f
1.65
-
c
0.85
P
P
‘0
1.64
‘0
0.84
W
‘?
i
1.63 I
,g 0.83
.,
.Z
E
---
-75 -50
-25
0 25 58 75 100 125
> -7s -50
-2s
0 25 50
75 108 128
TA
-
Frse-Air
Temporature
-
‘C
TA
-
Frea-Air
Temperature
-‘C
FIGURE 1
HYSTERESIS
FIGURE 2
VS
FREE-AIR TEMPERATURE
850
840
>
E
830
I
.n 820
E
5
810
E
7
800
?
790
5
, 780
6
770’
>
-lC”
‘“‘r~
i
i
i
i
i
i
i
I
750
L1
-75 -50 -25 0 25 50 75 100
125
TA
-
Free-Air
Temperature
-
OC
FIGURE 3
Data
for
temperaturer
below
0°C and 70°C and
supply
voltager
below
4.75V
and
above
5.25 V
arc
appkable
for SN5414
only