Datasheet

SN5414, SN54LS14,
SN7414, SN74LS14
HEX SCHMITT-TRIGGER INVERTERS
SDLS049B – DECEMBER 1983 – REVISED FEBRUARY 2002
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS OF ’LS14 CIRCUITS
†
Figure 10
1.64
1.62
1.61
1.60
Positive-Going Threshold Voltage – V
1.66
1.67
POSITIVE-GOING THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE
1.70
1.65
1.63
V
CC
= 5 V
1.68
1.69
T
A
– Free-Air Temperature – °C
–25–50–75
0 25 50 75 100 125
T+ –
V
Figure 11
0.84
0.82
0.81
0.80
0.86
0.87
NEGATIVE-GOING THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE
0.90
0.85
0.83
V
CC
= 5 V
0.88
0.89
–25–50–75
0 25 50 75 100 125
T
A
– Free-Air Temperature – °C
–
N
ega
ti
ve-
G
o
i
ng
Th
res
h
o
ld
V
o
lt
age –
V
T–
V
Figure 12
790
770
760
750
810
820
HYSTERESIS
vs
FREE-AIR TEMPERATURE
850
800
780
V
CC
= 5 V
830
840
–25–50–75
0 25 50 75 100 125
T
A
– Free-Air Temperature – °C
T+ –
– Hysteresis – VV
T–
V
Figure 13
760740
780 800 820
DISTRIBUTION OF UNITS
FOR HYSTERESIS
840 860 880
V
T+
– V
T–
– Hysteresis – mV
V
CC
= 5 V
T
A
= 25°C
Relative Frequency of Occurence
720
99% ARE
ABOVE
735 mV
†
Data for temperatures below 0°C and above 70°C and supply voltage below 4.75 V and above 5.25 V are applicable for SN5414 only.