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參數(shù)資料
| 型號(hào)： | 54HC157 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | HCT157 QUAD 2 CHANNEL MULTIPLEXER HCT158 QUAD 2 CHANNEL MULTIPLEXER INV. |
| 中文描述： | HCT157四2通道多HCT158四2通道多刑事調(diào)查。 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 250K |
| 代理商： | 54HC157 |
AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Symbol
Parameter
Test Conditions
Value
-40 to 85
o
C
74HC
Min.
Unit
V
CC
(V)
T
A
= 25
o
C
54HC and 74HC
Min.
Typ.
-55 to 125
o
C
54HC
Min.
Max.
15
Max.
19
Max.
22
t
TLH
t
THL
t
PLH
t
PHL
Output Transition
Time
Propagation
Delay Time
(A, B - Y)
Propagation
Delay Time
(SELECT - Y)
Propagation
Delay Time
(STROBE - Y)
Input Capacitance
Power Dissipation
Capacitance
4.5
8
ns
4.5
16
25
31
38
ns
t
PLH
t
PHL
4.5
19
30
38
45
ns
t
PLH
t
PHL
4.5
17
27
34
41
ns
C
IN
5
10
10
10
pF
pF
pF
C
PD
(*)
HCT157
HCT158
50
60
(*) C
PD
isdefined asthe value ofthe IC’sinternal equivalent capactance which is calculated from the operating current consumption without load.
(Refer to Test Circuit).Average operting current can be obtained by thefollowingequation. I
CC
(opr) = C
PD
V
CC
f
IN
+ I
CC
/4(per channel)
SWITCHING CHARACTERISTICS TEST CIR-
CUIT
TEST CIRCUIT I
CC
(Opr.)
INPUT WAVEFORMIS THE SAME AS THATIN CASE OF
SWITCHINGCHARACTERISTICSTEST.
M54/M74HCT157 M54/M74HCT158
6/11
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 54HC157 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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| 54HC160/BEA | 制造商:Rochester Electronics LLC 功能描述: |
| 54HC161/BEAJC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Synchronous Up Counter |
| 54HC161M/B2AJC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Synchronous Up Counter |
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