參數(shù)資料
型號(hào): 74HC157
廠商: Motorola, Inc.
英文描述: Quad 2-Input Data Selectors/Multiplexers
中文描述: 四2輸入數(shù)據(jù)選擇器/多路復(fù)用器
文件頁數(shù): 5/7頁
文件大小: 44K
代理商: 74HC157
December 1990
5
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74HC/HCT157
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: standard
I
CC
category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
SYMBOL
PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITIONS
74HC
V
CC
(V)
WAVEFORMS
+25
40 to +85
40 to +125
min.
typ.
max.
min.
max.
min.
max.
t
PHL
/ t
PLH
propagation delay
nI
0
to nY;
nI
1
to nY
propagation delay
E to nY
36
13
10
39
14
11
41
15
12
19
7
6
125
25
21
115
23
20
125
25
21
75
15
13
155
31
26
145
29
25
155
31
26
95
19
16
190
38
32
175
35
30
190
38
32
110
22
19
ns
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
Fig.7
t
PHL
/ t
PLH
ns
Fig.6
t
PHL
/ t
PLH
propagation delay
S to nY
ns
Fig.7
t
THL
/ t
TLH
output transition
time
ns
Fig.6 and Fig.7
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