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參數(shù)資料
| 型號(hào)： | 74HC_HCT151 |
| 英文描述： | 74HC/HCT151 8-input multiplexer |
| 中文描述： | 74HC/HCT151 8輸入多路復(fù)用器 |
| 文件頁(yè)數(shù)： | 6/7頁(yè) |
| 文件大小： | 48K |
| 代理商： | 74HC_HCT151 |
December 1990
6
Philips Semiconductors
Product specification
8-input multiplexer
74HC/HCT151
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: standard
I
CC
category: MSI
Note to HCT types
The value of additional quiescent supply current (
I
CC
) for a unit load of 1 is given in the family specifications.
To determine
I
CC
per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
INPUT
UNIT LOAD COEFFICIENT
I
n
S
n
E
0.45
1.50
0.30
SYMBOL
PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITIONS
74HCT
V
CC
(V)
WAVEFORMS
+
25
40 to
+
85
40 to
+
125
min.
typ.
max.
min.
max.
min.
max.
t
PHL
/ t
PLH
propagation delay
I
n
to Y
propagation delay
I
n
to Y
propagation delay
S
n
to Y
propagation delay
S
n
to Y
propagation delay
E to Y
propagation delay
E to Y
22
38
48
57
ns
4.5
Fig.6
t
PHL
/ t
PLH
22
38
48
57
ns
4.5
Fig.6
t
PHL
/ t
PLH
23
41
51
62
ns
4.5
Fig.7
t
PHL
/ t
PLH
25
43
54
65
ns
4.5
Fig.7
t
PHL
/ t
PLH
16
29
36
44
ns
4.5
Fig.7
t
PHL
/ t
PLH
21
36
45
54
ns
4.5
Fig.7
t
THL
/ t
TLH
output transition time
7
15
19
22
ns
4.5
Figs 6 and 7
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