CD4028BCJ [NSC]
BCD-to-Decimal Decoder; BCD到十进制解码器
| 型号： | CD4028BCJ |
| 厂家： | 
National Semiconductor |
| 描述： | BCD-to-Decimal Decoder |
| 文件： | 总4页 (文件大小：119K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
February 1988
CD4028BM/CD4028BC BCD-to-Decimal Decoder
Features
General Description
The CD4028BM/CD4028BC is a BCD-to-decimal or binary-
Y
Wide supply voltage range
3.0V to 15V
0.45 V (typ.)
Y
to-octal decoder consisting of inputs, decoding logic
4
High noise immunity
DD
Y
gates, and 10 output buffers. A BCD code applied to the 4
inputs, A, B, C, and D, results in a high level at the selected
1-of-10 decimal decoded outputs. Similarly, a 3-bit binary
code applied to inputs A, B, and C is decoded in octal at
outputs 0–7. A high level signal at the D input inhibits octal
decoding and causes outputs 0–7 to go low.
Low power TTL
compatibility
fan out of 2 driving 74L
or 1 driving 74LS
Y
Low power
Y
Glitch free outputs
Y
‘‘Positive logic’’ on inputs and outputs
All inputs are protected against static discharge damage by
.
SS
Applications
Y
diode clamps to V
and V
DD
Code conversion
Y
Address decoding
Y
Indicator-tube decoder
Logic and Connection Diagrams
Dual-In-Line Package
TL/F/5959–2
Top View
Order Number CD4028B
TL/F/5959–1
Truth Table
D
C
B
A
0
1
2
3
4
5
6
7
8
9
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
BCD States
e
e
1
0
High Level
Low Level
-
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
0
1
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
0
1
0
1
0
1
Extraordinary States
*
C
1995 National Semiconductor Corporation
TL/F/5959
RRD-B30M105/Printed in U. S. A.
Absolute Maximum Ratings (Notes 1 & 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Recommended Operating
Conditions (Note 2)
Supply Voltage (V
)
DD
3 to 15V
0 to V
Input Voltage (V
)
IN
V
DD
b
a
0.5 to 18V
Supply Voltage (V
)
DD
Operating Temperature Range (T )
A
b
a
0.5V
Input Voltage (V
IN
)
0.5 to V
DD
b
b
a
55 C to 125 C
CD4028BM
CD4028BC
§
§
§
§
b
a
65 C to 150 C
Storage Temperature Range (T )
S
§
§
a
40 C to 185 C
Power Dissipation (P )
D
Dual-In-Line
Small Outline
700 mW
500 mW
Lead Temperature (T )
L
(Soldering, 10 seconds)
260 C
§
DC Electrical Characteristics CD4028BC (Note 2)
b
a
a
125 C
§
Min Max
55 C
§
Max Min
25 C
§
Typ
Symbol
Parameter
Conditions
Units
Min
Max
e
e
e
e
e
e
I
Quiescent Device Current
V
DD
V
DD
V
DD
5V, V
IN
V or V
DD SS
5
0.01
0.01
0.02
5
150
300
600
mA
mA
mA
DD
10V, V
15V, V
V
DD
V
DD
or V
or V
10
20
10
20
IN
IN
SS
SS
k
e
e
V
V
V
V
Low Level Output Voltage
High Level Output Voltage
Low Level Input Voltage
High Level Input Voltage
I
1 mA, V
0V, V
V
OL
OH
IL
l
O
l
IL
IH
DD
DD
e
e
e
V
5V
10V
15V
0.05
0.05
0.05
0
0
0
0.05
0.05
0.05
0.05
0.05
0.05
V
V
V
DD
DD
DD
V
V
k
e
e
IH
I
1 mA, V
0V, V
V
l
O
l
IL
e
e
e
V
5V
10V
15V
4.95
9.95
4.95
9.95
5
4.95
9.95
V
V
V
DD
DD
DD
V
V
10
15
14.95
14.95
14.95
k
I
1 mA
l
O
l
e
e
e
e
O
V
5V,
10V,
15V,
V
0.5V or 4.5V
1V or 9V
1.5
3.0
4.0
2.25
4.5
1.5
3.0
4.0
1.5
3.0
4.0
V
V
V
DD
DD
DD
e
e
V
V
V
V
O
O
1.5V or 13.5V
6.75
k
I
1 mA
IH
l
O
l
e
e
e
e
e
e
V
5V,
10V,
15V,
V
0.5V or 4.5V
1V or 9V
3.5
7.0
3.5
7.0
2.75
5.5
3.5
7.0
V
V
V
DD
DD
DD
O
V
V
V
V
O
O
1.5V or 13.5V 11.0
11.0
8.25
11.0
e
e
V
I
I
I
Low Level Output Current
(Note 3)
V
V
V
V
0V, V
5V,
OL
IL
IH
DD
e
e
e
e
e
e
V
0.4V
0.5V
1.5V
0.64
1.6
0.51
1.3
1.0
2.6
6.8
0.36
0.9
mA
mA
mA
DD
DD
DD
O
10V,
15V,
V
O
O
V
4.2
3.4
2.4
e
e
V
High Level Output Current
(Note 3)
V
V
V
V
0V, V
5V,
OH
IN
IL
IH
DD
e
e
e
e
e
e
b
b
b
b
b
b
b
b
b
b
b
b
1.1
V
4.6V
9.5V
0.25
0.62
0.2
0.5
1.5
0.4
1.0
3.0
b
0.14
0.35
mA
mA
mA
DD
DD
DD
O
10V,
15V,
V
O
V
13.5V
1.8
O
5
e
e
e
e
b
0.1
b
b
0.1
b
1.0 mA
Input Current
V
V
15V,
15V,
V
V
0V
0.1
10
0.1
DD
IN
10b
1.0
mA
5
15V
DD
IN
DC Electrical Characteristics CD4028BC (Note 2)
b
a
a
85 C
40 C
25 C
§
§
§
Min Max Min Typ Max Min Max
Symbol
Parameter
Conditions
Units
e
e
e
e
e
e
I
Quiescent Device Current
V
DD
V
DD
V
DD
5V, V
IN
V or V
DD SS
20
40
80
0.01
0.01
0.02
20
40
80
150
300
600
mA
mA
mA
DD
10V, V
15V, V
V
DD
V
DD
or V
or V
IN
IN
SS
SS
k
e
e
V
V
OL
Low Level Output Voltage
I
1 mA, V
0V, V
IH
l
O
l
IL
DD
e
V
5V
10V
15V
0.05
0.05
0.05
0
0
0
0.05
0.05
0.05
0.05
0.05
0.05
V
V
V
DD
DD
DD
e
e
V
V
2
DC Electrical Characteristics CD4028BC (Note 2) (Continued)
b
a
a
40 C
25 C
85 C
§
Max
§
Min Max
§
Typ Max
Symbol
Parameter
Conditions
Units
Min
Min
k
e
e
V
V
OH
High Level Output Voltage
I
1 mA, V
IL
0V, V
IH
l
O
l
DD
e
V
V
V
5V
10V
15V
4.95
9.95
4.95
9.95
5
4.95
9.95
V
V
V
DD
DD
DD
e
e
10
15
14.95
14.95
14.95
k
1 mA
V
IL
Low Level Input Voltage
High Level Input Voltage
I
l
O
l
e
e
e
e
O
V
5V,
10V,
15V,
V
0.5V or 4.5V
1V or 9V
1.5
3.0
4.0
2.25
1.5
3.0
4.0
1.5
3.0
4.0
V
V
V
DD
DD
DD
e
e
V
V
V
O
V
O
4.5
1.5V or 13.5V
6.75
k
1 mA
V
IH
I
l
O
l
e
e
e
e
e
e
V
5V,
10V,
15V,
V
0.5V or 4.5V 3.5
1V or 9V 7.0
1.5V or 13.5V 11.0
3.5
7.0
3.5
7.0
V
V
V
DD
DD
DD
O
V
V
V
V
O
11.0
11.0
O
e
e
I
I
I
Low Level Output Current
(Note 3)
V
V
V
V
V
, V
DD IL
0V
OL
OH
IN
IH
e
e
e
e
e
e
5V,
10V,
15V,
V
0.4V
0.5V
1.5V
0.52
1.3
0.44
1.1
0.88
2.2
0.36
0.9
mA
mA
mA
DD
DD
DD
O
V
O
V
O
3.6
3.0
6.0
2.4
e
e
High Level Output Current
(Note 3)
V
V
V
V
V , V
DD IL
0V
IH
e
e
e
e
e
e
b
b
b
b
b
b
b
b
b
b
0.12
5V,
10V,
15V,
V
4.6V
9.5V
0.2
0.5
1.4
0.16
0.32
mA
mA
mA
DD
DD
DD
O
b
V
O
0.4
1.2
0.8
3.5
0.3
1.0
b
V
O
13.5V
e
e
e
e
b
b
b
1.0 mA
Input Current
V
V
15V,
15V,
V
V
0V
0.3
0.3
DD
IN
15V
0.3
0.3
1.0
mA
DD
IN
AC Electrical Characteristics*
e
e
e
e
e
t
f
T
A
25 C, C
50 pF, R
200k, Input t
20 ns, unless otherwise specified
Conditions Min
§
L
L
r
Symbol
Parameter
Typ
Max
Units
e
e
e
t
or t
Propagation Delay Time
Transition Time
V
V
V
5V
240
100
70
480
200
140
ns
ns
ns
PHL
THL
PLH
CC
CC
CC
10V
15V
e
e
e
t
or t
V
CC
V
CC
V
CC
5V
175
75
350
150
110
ns
ns
ns
TLH
10V
15V
60
C
IN
Input Capacitance
Any Input
5
7.5
pF
* AC Parameters are guaranteed by DC correlated testing.
Note 1: ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed, they are not meant to imply that the devices
should be operated at these limits. The table of ‘‘Recommended Operating Conditions’’ and ‘‘Electrical Characteristics’’ provides conditions for actual device
operation.
e
Note 2: V
0V unless otherwise specified.
SS
Note 3: I and I are tested one output at a time.
OL OH
Switching Time Waveforms
TL/F/5959–3
3
Physical Dimensions inches (millimeters)
Ceramic Dual-In-Line Package (J)
Order Number CD4028BMJ or CD4028BCJ
NS Package Number J16A
Molded Dual-In-Line Package (N)
Order Number CD4028BMN or CD4028BCN
NS Package Number N16E
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systems which, (a) are intended for surgical implant
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failure to perform, when properly used in accordance
with instructions for use provided in the labeling, can
be reasonably expected to result in a significant injury
to the user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
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