參數(shù)資料
型號: CD74AC251E
廠商: Texas Instruments, Inc.
英文描述: 8-Input Multiplexer, Three-State
中文描述: 8輸入多路復(fù)用器,三態(tài)
文件頁數(shù): 5/8頁
文件大小: 38K
代理商: CD74AC251E
5
ACT Input Load Table
INPUT
UNIT LOAD
S0, S1, S3
1
OE
1
I
0
- I
7
1
NOTE: Unit load is
I
CC
limit specified in DC Electrical Specifications
Table, e.g., 2.4mA max at 25
o
C.
Switching Specifications
Input t
r
, t
f
= 3ns, C
L
= 50pF (Worst Case)
PARAMETER
SYMBOL
V
CC
(V)
-40
o
C TO 85
o
C
-55
o
C TO 125
o
C
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
AC TYPES
Propagation Delay,
Data to Y Output
t
PLH
, t
PHL
1.5
-
-
153
-
-
169
ns
3.3
(Note 9)
4.9
-
17.2
4.7
-
18.9
ns
5
(Note 10)
3.5
-
12.3
3.4
-
13.5
ns
Propagation Delay,
Data to Y Output
t
PLH
, t
PHL
1.5
-
-
169
-
-
186
ns
3.3
5.4
-
19
5.2
-
20.9
ns
5
3.8
-
13.5
3.7
-
14.9
ns
Propagation Delay,
Select to Y Output
t
PLH
, t
PHL
1.5
-
-
207
-
-
228
ns
3.3
6.6
-
23.2
6.4
-
25.5
ns
5
4.7
-
16.5
4.6
-
18.2
ns
Propagation Delay,
Select to Y Output
t
PLH
, t
PHL
1.5
-
-
223
-
-
245
ns
3.3
7.1
-
24.9
6.9
-
27.4
ns
5
5.1
-
17.8
4.9
-
19.6
ns
Propagation Delay,
Output Enable and Output
Disable to Output
t
PZH
, t
PZL
,
t
PHZ
, t
PLZ
1.5
-
-
155
-
-
169
ns
3.3
5.2
-
18.7
5.1
-
20.3
ns
5
3.5
-
12.3
3.4
-
13.5
ns
Three-State Output
Capacitance
C
O
-
-
-
15
-
-
15
pF
Input Capacitance
C
I
-
-
-
10
-
-
10
pF
Power Dissipation Capacitance
C
PD
(Note 11)
-
-
120
-
-
120
-
pF
ACT TYPES
Propagation Delay,
Data to Y Output
t
PLH
, t
PHL
5
(Note 10)
3.5
-
12.3
3.4
-
13.5
ns
Propagation Delay,
Data to Y Output
t
PLH
, t
PHL
5
3.8
-
13.5
3.7
-
14.9
ns
Propagation Delay,
Select to Y Output
t
PLH
, t
PHL
5
4.7
-
16.5
4.6
-
18.2
ns
Propagation Delay,
Select to Y Output
t
PLH
, t
PHL
5
5.1
-
17.8
4.9
-
19.6
ns
Propagation Delay,
Output Enable and Output
Disable to Output
t
PZH
, t
PZL
,
t
PHZ
, t
PLZ
5
3.5
-
12.3
3.4
-
13.5
ns
CD74AC251, CD74ACT251
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