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| 型號(hào)： | 74ALS253 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Dual 4-input multiplexer (3-State)(雙通道4輸入多路復(fù)用器（三態(tài)）) |
| 中文描述： | 雙路4輸入多路復(fù)用器（3態(tài)）（雙通道4輸入多路復(fù)用器（三態(tài)）） |
| 文件頁(yè)數(shù)： | 4/9頁(yè) |
| 文件大小： | 115K |
| 代理商： | 74ALS253 |
Philips Semiconductors
Product specification
74ALS253
Dual 4-input multiplexer (3-State)
1991 Feb 08
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
OH
High level output voltage
High-level output voltage
V
±
10%, V
= MAX,
CC
V
IH
= MIN
I
OH
= –0.4mA
I
OH
= –2.6mA
I
OL
= 12mA
I
OL
= 24mA
V
CC
– 2
2.4
V
IL
V
V
OL
Low level output voltage
Low-level output voltage
V
= MIN, V
= MAX,
CC
V
IH
= MIN
0.25
0.40
V
IL
0.35
0.50
V
V
IK
I
I
I
IH
I
IL
Input clamp voltage
V
CC
= MIN, I
I
= I
IK
V
CC
= MAX, V
I
= 7.0V
V
CC
= MAX, V
I
= 2.7V
V
CC
= MAX, V
I
= 0.4V
–0.73
–1.5
V
Input current at maximum input voltage
0.1
mA
High-level input current
20
μ
A
Low-level input current
–0.1
mA
I
OZH
Off-state output current,
High-level voltage applied
V
CC
= MAX, V
I
= 2.7V
20
μ
A
I
OZL
Off-state output current,
Low-level voltage applied
Output current
3
V
CC
= MAX, V
I
= 0.4V
–20
μ
A
I
O
V
CC
= MAX, V
O
= 2.25V
–30
–112
mA
I
CC
Supply current (total)
I
CC
I
CCZ
V
CC
= MAX
7.0
12
mA
9.0
14
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. The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
OS
.
AC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITION
T
amb
= 0
°
C to +70
°
C
V
= +5.0V
±
10%
C
L
= 50pF, R
L
= 500
UNIT
MIN
MAX
t
PLH
t
PHL
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation delay
In to Yn
Waveform 1
4.0
4.0
12.0
12.0
ns
Propagation delay
Sn to Yn
Waveform 1
5.0
7.0
15.0
16.0
ns
Output enable time, High or Low level
OEn to Yn
Waveform 2
Waveform 3
1.0
3.0
8.0
9.0
ns
Output disable time, High or Low level
OEn to Yn
Waveform 2
Waveform 3
1.0
1.0
7.0
7.0
ns
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