Philips Semiconductors Product specification
74F14Hex inverter Schmitt trigger
November 26, 1990
4
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER TEST CONDITIONS
1
LIMITS UNIT
MIN TYP
2
MAX
V
T+
Positive-going threshold V
CC
= 5.0V 1.4 1.7 2.0 V
V
T–
Negative-going threshold V
CC
= 5.0V 0.7 0.9 1.1 V
∆V
T
Hysteresis (V
T+
– V
T–
) V
CC
= 5.0V 0.4 0.8 V
V
OH
High-level output voltage V
CC
= MIN, V
I
= V
T–MIN
, ±10%V
CC
2.5 V
I
OH
= MAX ±5%V
CC
2.7 3.4 V
V
OL
Low-level output voltage V
CC
= MIN, V
I
= V
T+MAX
, ±10%V
CC
0.30 0.50 V
I
OL
= MAX ±5%V
CC
0.30 0.50 V
V
IK
Input clamp voltage V
CC
= MIN, I
I
= I
IK
-0.73 -1.2 V
I
T+
Input current at positive-going threshold V
CC
= 5.0V, V
I
= V
T+
0 µA
I
T–
Input current at negative-going threshold V
CC
= 5.0V, V
I
= V
T–
–175 µA
I
I
Input current at maximum input voltage V
CC
= MAX, V
I
= 7.0V 100 µA
I
IH
High-level input current V
CC
= MAX, V
I
= 2.7V 20 µA
I
IL
Low-level input current V
CC
= MAX, V
I
= 0.5V -0.6 mA
I
OS
Short-circuit output current
3
V
CC
= MAX -60 -150 mA
I
CC
Supply current (total) I
CCH
V
CC
= MAX V
IN
= GND 13 22 mA
I
CCL
V
CC
= MAX V
IN
= 4.5V 23 32 mA
NOTES:
1 For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.
2 All typical values are at V
CC
= 5V, T
amb
= 25°C.
3 Not more than one output should be shorted at a time. For testing I
OS
, the use of high-speed test apparatus and/or sample-and-hold
techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting
of a high output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any
sequence of parameter tests, I
OS
tests should be performed last.
AC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL PARAMETER
TEST
CONDITION
V
CC
= +5.0V
T
amb
= +25°C
C
L
= 50pF, R
L
= 500Ω
V
CC
= +5.0V ± 10%
T
amb
= 0°C to +70°C
C
L
= 50pF, R
L
= 500Ω
V
CC
= +5.0V ± 10%
T
amb
= –40°C to +85°C
C
L
= 50pF, R
L
= 500Ω
UNIT
MIN TYP MAX MIN MAX MIN MAX
t
PLH
t
PHL
Propagation delay
Dn to Qn
Waveform 1
4.0
3.5
6.5
5.0
8.5
6.5
4.0
3.5
9.5
7.0
3.0
3.5
10.5
9.0
ns
