Datasheet
SCAS522G − AUGUST 1995 − REVISED AUGUST 2008
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
T
A
= 25°C SN54AC14 SN74AC14
UNIT
PARAMETER
TEST CONDITIONS
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
V
T+
3 V 0.8 1.8 2.2 0.8 2.2 0.8 2.2
V
T+
Positive-going
threshold
4.5 V 1.5 2.6 3.2 1.5 3.2 1.5 3.2
V
Positive-going
threshold
5.5 V 1.6 3.2 3.9 1.6 3.9 1.6 3.9
V
V
T−
3 V 0.5 0.8 1 0.5 1.2 0.5 1
V
T−
Negative-going
threshold
4.5 V 0.9 1.4 1.8 0.9 1.8 0.9 1.8
V
Negative-going
threshold
5.5 V 1.1 1.8 2.3 1.1 2.3 1.1 2.3
V
∆V
T
3 V 0.3 1 1.2 0.3 1.2 0.3 1.2
∆V
T
Hysteresis
(V − V )
4.5 V 0.4 1.2 1.4 0.4 1.4 0.4 1.4
V
Hysteresis
(V
T+
− V
T−
)
5.5 V 0.5 1.4 1.6 0.5 1.6 0.5 1.6
V
3 V 2.9 2.9 2.9
I
OH
= −50 µA
4.5 V 4.4 4.4 4.4
I
OH
= −50 µA
5.5 V 5.4 5.4 5.4
V
OH
I
OH
= −12 mA 3 V 2.56 2.4 2.48
V
V
OH
I
OH
= −24 mA
4.5 V 3.86 3.7 3.8
V
I
OH
= −24 mA
5.5 V 4.86 4.7 4.8
I
OH
= −50 mA
†
5.5 V 3.85
I
OH
= −75 mA
†
5.5 V 3.85
3 V 0.002 0.1 0.1 0.1
I
OL
= 50 µA
4.5 V 0.001 0.1 0.1 0.1
I
OL
= 50 µA
5.5 V 0.001 0.1 0.1 0.1
V
OL
I
OL
= 12 mA 3 V 0.36 0.5 0.44
V
V
OL
I
OL
= 24 mA
4.5 V 0.36 0.5 0.44
V
I
OL
= 24 mA
5.5 V 0.36 0.5 0.44
I
OL
= 50 mA
†
5.5 V 1.65
I
OL
= 75 mA
†
5.5 V 1.65
I
I
V
I
= V
CC
or GND 5.5 V ±0.1 ±1 ±1 µA
I
CC
V
I
= V
CC
or GND, I
O
= 0 5.5 V 2 40 20 µA
C
i
VI = V
CC
or GND 5 V 4.5 pF
†
Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.
switching characteristics over recommended operating free-air temperature range,
V
CC
= 3.3 V " 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
T
A
= 25°C SN54AC14 SN74AC14
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
PLH
A
Y
1.5 6 13.5 1 16 1.5 15
ns
t
PHL
A Y
1.5 6 11.5 1 14 1.5 13
ns