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Philips Semiconductors
Quad 2-line to 1-line selector/multiplexer, non-inverting
(3-State)
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
SYMBOL
PARAMETER
PARAMETER
V
V
High level output voltage
High-level output voltage
OH
O
V
V
Low-level output voltage
Low level output voltage
O
OL
V
Input clamp voltage
IK
I
Input current at maximum input voltage
I
I
High-level input current
IH
I
Low-level input current
IL
Off state output current,
I
OZH
High-level voltage applied
Off state output current,
I
OZL
Low-level voltage applied
I
Short-circuit output current
OS
4
4
I
Supply current
(total)
CC
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
= 5V, T
CC
3. Not more than one output should be shorted at a time. For testing I
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
4. Measure I
with all outputs open and inputs grounded.
CC
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
t
Propagation delay
PLH
t
In to Yn
PHL
t
Propagation delay
PLH
t
S to Yn
PHL
t
Output Enable time
PZH
t
to High or Low level
PZL
t
Output Disable time
PHZ
t
from High or Low level
PLZ
1995 Mar 31
V
= MIN, V
CC
CC
V
= MIN, I
IH
V
= MIN, V
CC
CC
V
= MIN, I
IH
V
= MIN, I
CC
V
= MAX, V
CC
V
= MAX, V
CC
V
= MAX, V
CC
V
= MAX, V
CC
V
= MAX, V
CC
3
V
= MAX
CC
I
CCH
I
V
= MAX
CCL
CC
I
CCZ
= 25 C.
amb
tests should be performed last.
OS
T
amb
TEST
V
CONDITION
MIN
3.0
Waveform 1
2.0
5.0
Waveform 1
4.0
Waveform 2
4.5
Waveform 3
4.5
Waveform 2
2.0
Waveform 3
2.0
1
1
TEST CONDITIONS
TEST CONDITIONS
10%V
CC
,
= MAX,
,
IL
IL
= MAX
OH
5%V
CC
10%V
CC
,
= MAX,
,
IL
IL
= MAX
OL
5%V
CC
= I
I
IK
= 7.0V
I
= 2.7V
I
= 0.5V
I
= 2.7V
O
= 0.5V
O
, the use of high-speed test apparatus and/or sample-and-hold
OS
LIMITS
= +25 C
T
= 0 C to +70 C
amb
= +5.0V
V
= +5.0V
CC
CC
C
= 50pF
C
= 50pF
L
L
R
= 500Ω
R
= 500Ω
L
L
TYP
MAX
MIN
MAX
4.5
6.0
3.0
7.0
3.5
5.0
2.0
6.0
7.5
9.5
5.0
10.5
5.5
7.0
4.0
8.0
6.5
7.5
4.5
8.5
6.0
7.5
4.5
8.5
4.0
5.5
2.0
6.0
3.5
5.5
2.0
6.0
5
Product specification
74F257A
LIMITS
2
MIN
TYP
MAX
2.4
2.7
3.3
0.35
0.50
0.35
0.50
–0.73
–1.2
100
20
–0.6
50
–50
-60
–150
9.0
15.0
14.5
22.0
15.0
23.0
T
= –40 C to +85 C
amb
10%
V
= +5.0V
10%
CC
C
= 50pF
L
R
= 500Ω
L
MIN
MAX
3.0
7.0
2.0
7.0
5.0
10.5
4.0
8.5
4.5
8.5
4.5
8.5
2.0
6.0
2.0
6.0
UNIT
UNIT
V
V
V
V
V
µA
µA
mA
µA
µA
mA
mA
mA
mA
UNIT
ns
ns
ns
ns
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