參數(shù)資料
型號(hào)： CD54HCT157F3A96
廠商： TEXAS INSTRUMENTS INC
元件分類： 編、解碼器及復(fù)用、解復(fù)用
英文描述： HCT SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CDIP16
封裝： CERDIP-16
文件頁(yè)數(shù)： 5/7頁(yè)
文件大小： 34K
代理商： CD54HCT157F3A96
5
Enable to Output
tPLH, tPHL CL = 50pF
2
-
135
-
170
-
205
ns
4.5
-
27
-
34
-
41
ns
HC157
CL =15pF
5
-
11
-
ns
HCT157
-
12
-
ns
CL = 50pF
6
-
23
-
29
-
35
ns
Select to Output
tPLH, tPHL CL = 50pF
2
-
145
-
180
-
220
ns
4.5
-
29
-
36
-
44
ns
HC157
CL =15pF
5
-
12
-
ns
HCT157
-
15
-
ns
CL = 50pF
6
-
25
-
31
-
38
ns
Power Dissipation
Capacitance (Notes 4, 5)
CPD
-5
HC157
-
62
-
pF
HCT157
-
70
-
pF
HC/HCT158 TYPES
Data to Output
tPLH, tPHL CL = 50pF
2
-
140
-
175
-
210
ns
4.5
-
28
-
35
-
42
HC158
CL =15pF
5
-
11
-
ns
HCT 158
-
13
-
ns
CL = 50pF
6
-
24
-
30
-
36
ns
Enable to Output
tPLH, tPHL CL = 50pF
2
-
160
-
200
-
240
ns
4.5
-
32
-
40
-
48
ns
HC158
CL =15pF
5
-
13
-
ns
HCT 158
-
15
-
ns
CL = 50pF
6
-
27
-
34
-
41
ns
Select to Output
tPLH, tPHL CL = 50pF
2
-
150
-
190
-
225
ns
4.5
-
30
-
38
-
45
ns
HC158
CL =15pF
5
-
12
-
ns
HCT 158
-
14
-
ns
CL = 50pF
6
-
26
-
33
-
38
ns
Output Transition Time
tTLH, tTHL
CL = 50pF
2
-
75
-
95
-
110
ns
4.5
-
15
-
19
-
22
ns
6
-
13
-
16
-
19
ns
Power Dissipation
Capacitance (Notes 4, 5)
CPD
-5
HC158
-
35
-
pF
HCT 158
-
35
-
pF
Input Capacitance
CIN
CL = 50pF
-
10
-
10
-
10
pF
NOTES:
4. CPD is used to determine the dynamic power consumption, per multiplexer.
5. PD = VCC
2 f
i (CPD + CL) where fi = input frequency, CL = output load capacitance, VCC = supply voltage.
Switching Specications Input tr, tf = 6ns (Continued)
PARAMETER
SYMBOL
TEST
CONDITIONS
VCC
(V)
25oC
-40oC TO 85oC
-55oC TO 125oC
UNITS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
CD54/74HC157, CD54/74HCT157, CD54/74HC158, CD54/74HCT158
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