參數(shù)資料
型號(hào): CD74HC237PW
廠商: Texas Instruments, Inc.
英文描述: High-Speed CMOS Logic, 3- to 8-Line Decoder/Demultiplexer with Address Latches
中文描述: 高速CMOS邏輯,3 -至8線譯碼器/解復(fù)用器的地址鎖存器
文件頁(yè)數(shù): 6/16頁(yè)
文件大小: 381K
代理商: CD74HC237PW
6
LE Pulse Width
t
W
2
50
-
-
65
-
75
-
ns
4.5
10
-
-
13
-
15
-
ns
6
9
-
-
1
-
13
-
ns
HCT TYPES
An to LE Setup Time
t
SU
4.5
10
-
-
13
-
15
-
ns
An to LE Hold Time
t
H
CD74HCT137
4.5
7
-
-
9
-
11
-
ns
CD74HCT237
t
H
t
W
4.5
5
-
-
5
-
5
-
ns
LE Pulse Width
4.5
10
-
-
13
-
15
-
ns
Switching Specifications
Input t
r
, t
f
= 6ns
PARAMETER
SYMBOL
TEST
CONDITIONS
V
CC
(V)
25
o
C
-40
o
C TO
85
o
C
-55
o
C TO 125
o
C
UNITS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
HC TYPES
Propagation Delay
CD74HC137, CD74HCT137
t
PLH,
t
PHL
C
L
= 50pF
2
-
-
180
-
225
-
270
ns
An to any Y
4.5
-
-
36
-
45
-
54
ns
6
-
-
31
-
38
-
46
ns
Propagation Delay
’HC237, CD74HCT237
t
PLH,
t
PHL
C
L
= 50pF
2
-
-
160
-
200
-
240
ns
An to any Y
4.5
-
-
32
-
40
-
48
ns
6
-
-
27
-
34
-
41
ns
Address to Output
CD74HC137
t
PLH
, t
PHL
C
L
= 15pF
t
PLH
, t
PHL
C
L
= 15pF
t
PLH,
t
PHL
C
L
= 50pF
5
5
15
-
-
-
-
-
ns
’HC237
5
-
13
-
-
-
-
-
ns
OE
0
to any Y or Y
2
-
-
145
-
180
-
220
ns
4.5
-
-
29
-
36
-
44
ns
6
-
-
25
-
31
-
38
ns
OE
1
to any Y or Y
t
TLH
, t
THL
C
L
= 50pF
2
-
-
145
-
180
-
220
ns
4.5
-
-
29
-
36
-
44
ns
6
-
-
25
-
31
-
38
ns
LE to any Y or Y
t
TLH
, t
THL
C
L
= 50pF
2
-
-
190
-
240
-
285
ns
4.5
-
-
38
-
48
-
57
ns
6
-
-
32
-
41
-
48
ns
Power Dissipation
Capacitance, (Notes 3, 4)
CD74HC137
C
PD
C
PD
C
L
= 15pF
C
L
= 15pF
5
-
19
-
-
-
-
-
pF
’HC237
5
-
23
-
-
-
-
-
pF
Output Transition Time
t
TLH
, t
THL
C
L
= 50pF
2
-
-
75
-
95
-
110
ns
4.5
-
-
15
-
19
-
22
ns
6
-
-
13
-
16
-
19
ns
Input Capacitance
C
I
-
-
-
-
10
-
10
-
10
pF
Prerequisite For Switching Specifications
(Continued)
PARAMETER
SYMBOL
V
CC
(V)
25
o
C
-40
o
C TO 85
o
C
-55
o
C TO 125
o
C
UNITS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
CD74HC137, CD74HCT137, CD54HC237, CD74HC237, CD74HCT237
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