參數(shù)資料
型號: MM74HC251MTC
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: Zener Diode 225 mW 56 V ±5%SOT-23; Package: SOT-23 (TO-236) 3 LEAD; No of Pins: 3; Container: Tape and Reel; Qty per Container: 3000
中文描述: HC/UH SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16
封裝: 4.40 MM, MO-153, TSSOP-16
文件頁數(shù): 4/7頁
文件大小: 74K
代理商: MM74HC251MTC
www.fairchildsemi.com
4
M
AC Electrical Characteristics
V
CC
=
5V, T
A
=
25
°
C, C
L
=
15 pF, t
r
=
t
f
=
6 ns
AC Electrical Characteristics
C
L
=
50 pF, t
r
=
t
f
=
6 ns (unless otherwise specified)
Note 5:
C
PD
determines the no load dynamic power consumption, P
D
=
C
PD
V
CC2
f
+
I
CC
V
CC
, and the no load dynamic current consumption,
I
S
=
C
PD
V
CC
f
+
I
CC
.
Symbol
Parameter
Conditions
Typ
Guaranteed
Limit
35
Units
t
PHL
, t
PLH
Maximum Propagation Delay
26
ns
A, B or C to Y
Maximum Propagation
Delay, A, B or C to W
t
PHL
, t
PLH
27
35
ns
t
PHL
, t
PLH
Maximum Propagation
Delay, Any D to Y
Maximum Propagation
22
29
ns
t
PHL
, t
PLH
24
32
ns
Delay, Any D to W
Maximum Output Enable
t
PZH
, t
PZL
R
L
=
1 k
C
L
=
50 pF
R
L
=
1 k
C
L
=
50 pF
R
L
=
1 k
C
L
=
5 pF
R
L
=
1 k
C
L
=
5 pF
19
27
ns
Time, W Output
Maximum Output Enable
Time, Y Output
t
PZH
, t
PZL
19
26
ns
t
PHZ
, t
PLZ
Maximum Output Disable Time
W Output
Maximum Output Disable Time
26
40
ns
t
PHZ
, t
PLZ
27
35
ns
Y Output
Symbol
Parameter
Conditions
V
CC
T
A
=
°
C
Typ
90
31
T
A
=
40 to 85
°
C T
A
=
55 to 125
°
C
Guaranteed Limits
256
51
Units
t
PHL
, t
PLH
Maximum Propagation Delay
A, B or C to Y
2.0V
4.5V
205
41
300
60
ns
ns
6.0V
2.0V
4.5V
26
95
32
35
205
41
44
256
51
51
300
60
ns
ns
ns
t
PHL
, t
PLH
Maximum Propagation
Delay, A, B or C to W
6.0V
2.0V
4.5V
27
70
27
35
195
39
44
244
49
51
283
57
ns
ns
ns
t
PHL
, t
PLH
Maximum Propagation
Delay, any D to Y
6.0V
2.0V
4.5V
23
75
29
33
185
37
41
231
46
48
268
54
ns
ns
ns
t
PHL
, t
PLH
Maximum Propagation
Delay, any D to W
6.0V
2.0V
4.5V
25
45
21
32
150
30
40
188
38
46
218
44
ns
ns
ns
t
PZH
, t
PZL
Maximum Output Enable Time
W Output
R
L
=
1 k
6.0V
2.0V
4.5V
18
45
21
26
145
29
33
181
36
38
210
42
ns
ns
ns
t
PZH
, t
PZL
Maximum Output Enable Time
Y Output
R
L
=
1 k
6.0V
2.0V
4.5V
18
60
29
25
220
44
31
275
55
36
319
64
ns
ns
ns
t
PHZ
, t
PLZ
Maximum Output Disable Time
W Output
R
L
=
1 k
6.0V
2.0V
4.5V
25
60
30
37
195
39
46
244
49
54
283
57
ns
ns
ns
t
PHZ
, t
PLZ
Maximum Output Disable Time
Y Output
R
L
=
1 k
6.0V
2.0V
4.5V
26
30
8
33
75
15
41
95
19
48
110
22
ns
ns
ns
t
THL
, t
TLH
Maximum Output Rise
and Fall Time
6.0V
7
13
16
19
ns
pF
pF
C
PD
C
IN
Power Dissipation Capacitance (Note 5) (per package)
Maximum Input Capacitance
110
5
10
10
10
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MM74HC251N 制造商:Fairchild Semiconductor Corporation 功能描述:IC DECODERS/ENCODERS/MULTIPLEXERS/DEMUL