74F14 Philips Semiconductors, 74F14 Datasheet - Page 4

• Manufacturer Part Number: 74F14
• Description: 8-input priority encoder
• Manufacturer: Philips Semiconductors

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
3 Not more than one output should be shorted at a time. For testing I
Philips Semiconductors
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
NOTES:
AC ELECTRICAL CHARACTERISTICS
November 26, 1990
SYMBOL
V
V
V
V
V
I
I
I
I
I
I
I
SYMBOL
t
t
T+
T–
I
IH
IL
OS
CC
PLH
PHL
Hex inverter Schmitt trigger
V
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
T+
T–
OH
OL
IK
T
Positive-going threshold
Negative-going threshold
Hysteresis (V
High-level output voltage
Low-level output voltage
Input clamp voltage
Input current at positive-going threshold
Input current at negative-going threshold
Input current at maximum input voltage
High-level input current
Low-level input current
Short-circuit output current
Supply current (total)
Propagation delay
Dn to Qn
PARAMETER
T+
PARAMETER
CC
– V
= 5V, T
OS
T–
)
tests should be performed last.
CONDITION
Waveform 1
amb
TEST
3
= 25 C.
I
I
CCH
CCL
C
MIN
4.0
3.5
L
= 50pF, R
T
V
V
V
V
I
V
I
V
V
V
V
V
V
V
V
V
V
OH
OL
amb
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
= MAX
= MAX
TYP
= 5.0V
= 5.0V
= 5.0V
= MIN, V
= MIN, V
= MIN, I
= 5.0V, V
= 5.0V, V
= MAX, V
= MAX, V
= MAX, V
= MAX
= MAX
= MAX
= +5.0V
6.5
5.0
= +25 C
L
TEST CONDITIONS
= 500
OS
4
I
MAX
I
I
= I
I
I
, the use of high-speed test apparatus and/or sample-and-hold
8.5
6.5
I
I
I
= V
= V
= V
= V
= 7.0V
= 2.7V
= 0.5V
IK
T–MIN
T+MAX
T+
T–
C
T
,
V
L
,
amb
MIN
CC
4.0
3.5
= 50pF, R
V
V
= +5.0V
= 0 C to +70 C
1
IN
IN
10%V
10%V
LIMITS
5%V
5%V
= GND
= 4.5V
CC
CC
L
CC
CC
= 500
MAX
10%
9.5
7.0
MIN
-60
1.4
0.7
0.4
2.5
2.7
T
C
amb
V
L
MIN
LIMITS
CC
3.0
3.5
TYP
= 50pF, R
-0.73
–175
0.30
0.30
1.7
0.9
0.8
3.4
13
23
= –40 C to +85 C
0
= +5.0V
2
L
MAX
-150
0.50
0.50
-1.2
-0.6
100
2.0
1.1
Product specification
= 500
20
22
32
MAX
10.5
9.0
10%
74F14
UNIT
mA
mA
mA
mA
V
V
V
V
V
V
V
V
UNIT
A
A
A
A
ns