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參數(shù)資料
| 型號： | SN54ALS251FK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 1-OF-8 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS |
| 中文描述： | 1中，8個數(shù)據(jù)選擇器/多路復(fù)用器與三態(tài)輸出 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大小： | 96K |
| 代理商： | SN54ALS251FK |
SN54ALS251, SN74ALS251
1-OF-8 DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SDAS215A – APRIL 1982 – REVISED DECEMBER 1994
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500
,
R2 = 500
,
TA = MIN to MAX
SN54ALS251
MIN
MAX
1
21
UNIT
SN74ALS251
MIN
5
MAX
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPZH
tPZL
tPZH
tPZL
A B or C
A, B, or C
Y
18
ns
7
34
8
24
A B or C
A, B, or C
W
5
38
8
24
ns
7
26
7
23
An D
Any D
Y
2
15
2
10
ns
3
23
3
15
An D
Any D
W
3
25
3
15
ns
3
20
3
15
OE
Y
3
21
3
15
ns
3
19
3
15
OE
W
3
21
3
15
ns
3
19
3
15
OE
Y
2
12
2
10
ns
1
18
1
10
OE
W
2
1
12
18
2
1
10
10
ns
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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