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參數(shù)資料
| 型號(hào)： | HD74HC251 |
| 廠(chǎng)商： | Hitachi,Ltd. |
| 英文描述： | Octal Buffers And Line Drivers With 3-State Outputs 20-CDIP -55 to 125 |
| 中文描述： | 1月8數(shù)據(jù)選擇器/多路轉(zhuǎn)換器（3態(tài)輸出） |
| 文件頁(yè)數(shù)： | 5/9頁(yè) |
| 文件大?。?/td> | 54K |
| 代理商： | HD74HC251 |
HD74HC251
5
AC Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Ta = 25
°
C
Ta = –40 to
+85
°
C
Item
Symbol
V
CC
(V)
2.0
Min Typ Max Min
Max
Unit
Test Conditions
Propagation delay t
PLH
time
—
—
205 —
255
ns
A, B or C to Y
t
PHL
4.5
—
20
41
—
51
6.0
—
—
35
—
43
t
PLH
t
PHL
2.0
—
—
205 —
255
ns
A, B or C to W
4.5
—
20
41
—
51
6.0
—
—
35
—
43
t
PLH
t
PHL
2.0
—
—
195 —
245
ns
Data to Y
4.5
—
17
39
—
49
6.0
—
—
33
—
42
t
PLH
t
PHL
2.0
—
—
185 —
230
ns
Data to W
4.5
—
17
37
—
46
6.0
—
—
31
—
39
Output enable
t
ZH
t
ZL
2.0
—
—
150 —
190
ns
strobe to W
R
L
= 1 k
time
4.5
—
11
30
—
38
6.0
—
—
26
—
33
t
ZH
t
ZL
2.0
—
—
145 —
180
ns
strobe to Y
R
L
= 1 k
4.5
—
11
29
—
36
6.0
—
—
25
—
31
Output disable
t
HZ
t
LZ
2.0
—
—
220 —
275
ns
strobe to W
R
L
= 1 k
time
4.5
—
12
44
—
55
6.0
—
—
37
—
47
t
HZ
t
LZ
2.0
—
—
195 —
245
ns
strobe to Y
R
L
= 1 k
4.5
—
12
39
—
49
6.0
—
—
33
—
42
Output rise/fall
t
TLH
t
THL
2.0
—
—
75
—
90
ns
time
4.5
—
5
15
—
19
6.0
—
—
13
—
16
Input capacitance
Cin
—
—
5
10
—
10
pF
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PDF描述 |
|---|---|
| HD74HC253 | Octal Buffers And Line Drivers With 3-State Outputs 20-CFP -55 to 125 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD74HC251FP(E) | 制造商:Renesas Electronics Corporation 功能描述: |
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| HD74HC258FP | 制造商:Renesas Electronics Corporation 功能描述:Multiplexer 1-Element CMOS 3-ST 8-IN 16-Pin SOP |
| HD74HC273FP-E | 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-20 |
| HD74HC273FPVEL-E | 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-20 |
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