Datasheet
SN5414, SN54LS14,
SN7414, SN74LS14
HEX SCHMITT-TRIGGER INVERTERS
SDLS049B – DECEMBER 1983 – REVISED FEBRUARY 2002
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics, V
CC
= 5 V, T
A
= 25°C (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITIONS
SN5414
SN7414
UNIT
PARAMETER
(INPUT)
(OUTPUT)
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
MIN
TYP
MAX
t
PLH
A
Y
R
L
= 400 Ω
C
L
=15
p
F
15 22
ns
t
PHL
A
Y
R
L
=
400
Ω
,
C
L
=
15
F
15 22
ns
recommended operating conditions
SN54LS14 SN74LS14
UNIT
MIN NOM MAX MIN NOM MAX
UNIT
V
CC
Supply voltage 4.5 5 5.5 4.75 5 5.25 V
I
OH
High-level output current –0.4 –0.4 mA
I
OL
Low-level output current 4 8 mA
T
A
Operating free-air temperature –55 125 0 70 °C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
†
SN54LS14 SN74LS14
UNIT
PARAMETER
TEST
CONDITIONS
†
MIN TYP
‡
MAX MIN TYP
‡
MAX
UNIT
V
T+
V
CC
= 5 V 1.4 1.6 1.9 1.4 1.6 1.9 V
V
T–
V
CC
= 5 V 0.5 0.8 1 0.5 0.8 1 V
Hysteresis
(V
T+
– V
T–
)
V
CC
= 5 V 0.4 0.8 0.4 0.8 V
V
IK
V
CC
= MIN, I
I
= –18 mA –1.5 –1.5 V
V
OH
V
CC
= MIN, V
I
= 0.5 V, I
OH
= –0.4 mA 2.5 3.4 2.7 3.4 V
V
OL
V
CC
= MIN
V
I
= 19V
I
OL
= 4 mA 0.25 0.4 0.25 0.4
V
V
OL
V
CC
=
MIN
,
V
I
= –
1
.
9
V
I
OL
= 8 mA 0.35 0.5
V
I
T+
V
CC
= 5 V, V
I
= V
T+
–0.14 –0.14 mA
I
T–
V
CC
= 5 V, V
I
= V
T–
–0.18 –0.18 mA
I
I
V
CC
= MAX, V
I
= 7 V 0.1 0.1 mA
I
IH
V
CC
= MAX, V
IH
= 2.7 V 20 20 µA
I
IL
V
CC
= MAX, V
IL
= 0.4 V –0.4 –0.4 mA
I
OS
§
V
CC
= MAX –20 –100 –20 –100 mA
I
CCH
V
CC
= MAX 8.6 16 8.6 16 mA
I
CCL
V
CC
= MAX 12 21 12 21 mA
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
‡
All typical values are at V
CC
= 5 V, T
A
= 25°C.
§
Not more than one output should be shorted at a time, and duration of the short-circuit should not exceed one second.
switching characteristics, V
CC
= 5 V, T
A
= 25°C (see Figure 2)
PARAMETER
FROM TO
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PARAMETER
(INPUT) (OUTPUT)
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
t
PLH
A
Y
R
L
=2kΩ
C
L
=15
p
F
15 22
ns
t
PHL
A
Y
R
L
=
2
kΩ
,
C
L
=
15
F
15 22
ns