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CD4028BC_02 [FAIRCHILD]

BCD-to-Decimal Decoder; BCD到十进制解码器
CD4028BC_02
型号： CD4028BC_02
厂家： FAIRCHILD SEMICONDUCTOR    FAIRCHILD SEMICONDUCTOR
描述：

BCD-to-Decimal Decoder
BCD到十进制解码器

解码器 CD
文件： 总6页 (文件大小：65K)
中文：  中文翻译
下载：  下载PDF数据表文档文件
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October 1987  
Revised March 2002  
CD4028BC  
BCD-to-Decimal Decoder  
General Description  
Features  
The CD4028BC is a BCD-to-decimal or binary-to-octal  
decoder consisting of 4 inputs, decoding logic 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 dec-  
imal 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.  
■ Wide supply voltage range: 3.0V to 15V  
■ High noise immunity: 0.45 VDD (typ.)  
■ Low power TTL compatibility: fan out of 2 driving 74L  
or 1 driving 74LS  
■ Low power  
■ Glitch free outputs  
■ “Positive logic” on inputs and outputs  
All inputs are protected against static discharge damage by  
diode clamps to VDD and VSS  
.
Applications  
•
•
•
Code conversion  
Address decoding  
Indicator-tube decoder  
Ordering Code:  
Order Number Package Number  
Package Description  
CD4028BCM  
CD4028BCN  
M16A  
N16E  
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow  
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Connection Diagram  
Top View  
© 2002 Fairchild Semiconductor Corporation  
DS005959  
www.fairchildsemi.com  
Truth Table  
D
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
C
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
B
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
A
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
6
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
7
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
8
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
0
9
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
BCD States  
1 = HIGH Level  
0 = LOW Level  
Extraordinary States  
Logic Diagram  
www.fairchildsemi.com  
2
Absolute Maximum Ratings(Note 1)  
(Note 2)  
Recommended Operating  
Conditions (Note 2)  
Supply Voltage (VDD  
Input Voltage (VIN  
)
−0.5 to +18V  
−0.5 to VDD +0.5V  
−65°C to +150°C  
Supply Voltage (VDD  
Input Voltage (VIN  
Operating Temperature Range (TA)  
)
3 to 15V  
0 to VDD  
−55°C to +125°C  
)
)
V
Storage Temperature Range (TS)  
Power Dissipation (PD)  
Dual-In-Line  
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 “Recom-  
mended Operating Conditions” and “Electrical Characteristics” provides  
conditions for actual device operation.  
700 mW  
500 mW  
Small Outline  
Lead Temperature (TL)  
(Soldering, 10 seconds)  
Note 2: VSS = 0V unless otherwise specified.  
260°C  
DC Electrical Characteristics (Note 2)  
−55°C  
+25°C  
Typ  
+125°C  
Symbol  
IDD  
Parameter  
Conditions  
Units  
Min  
Max  
Min  
Max  
5
Min  
Max  
Quiescent Device Current  
VDD  
=
5V, VIN = VDD or VSS  
5
0.01  
0.01  
0.02  
150  
300  
600  
V
DD = 10V, VIN = VDD or VSS  
DD = 15V, VIN = VDD or VSS  
10  
20  
10  
20  
µA  
V
VOL  
VOH  
VIL  
LOW Level Output Voltage  
HIGH Level Output Voltage  
LOW Level Input Voltage  
HIGH Level Input Voltage  
|IO| < 1 µA, VIL = 0V, VIH = VDD  
VDD 5V  
=
0.05  
0.05  
0.05  
0
0
0
0.05  
0.05  
0.05  
0.05  
0.05  
0.05  
V
DD = 10V  
DD = 15V  
V
V
V
|IO| < 1 µA, VIL = 0V, VIH = VDD  
VDD 5V  
=
4.95  
9.95  
4.95  
9.95  
5
4.95  
9.95  
V
DD = 10V  
DD = 15V  
10  
15  
V
14.95  
14.95  
14.95  
|IO| < 1 µA  
VDD 5V,  
=
VO = 0.5V or 4.5V  
1.5  
3.0  
4.0  
2.25  
4.5  
1.5  
3.0  
4.0  
1.5  
3.0  
4.0  
V
DD = 10V,  
DD = 15V,  
V
O = 1V or 9V  
V
V
VO = 1.5V or 13.5V  
6.75  
VIH  
IOL  
IOH  
IIN  
|IO| < 1 µA  
VDD 5V,  
=
VO = 0.5V or 4.5V  
3.5  
7.0  
3.5  
7.0  
2.75  
5.5  
3.5  
7.0  
V
V
V
DD = 10V,  
V
O = 1V or 9V  
V
DD = 15V,  
VO = 1.5V or 13.5V  
11.0  
11.0  
8.25  
11.0  
LOW Level Output Current  
(Note 3)  
IH = VDD, VIL = 0V  
5V, O = 0.4V  
VDD  
=
V
0.64  
1.6  
0.51  
1.3  
1.0  
2.6  
6.8  
0.36  
0.9  
V
V
V
DD = 10V,  
V
O = 0.5V  
O = 1.5V  
mA  
DD = 15V,  
V
4.2  
3.4  
2.4  
HIGH Level Output Current  
(Note 3)  
IH = VDD, VIL = 0V  
VDD  
=
5V, VO  
DD = 10V, VO  
DD = 15V,  
DD = 15V, VIN  
DD = 15V, IN = 15V  
=
4.6V  
−0.25  
−0.62  
−1.8  
−0.2  
−0.5  
−1.5  
−0.4  
−1.0  
−3.0  
−0.14  
−0.35  
−1.1  
V
V
V
V
=
9.5V  
mA  
V
O = 13.5V  
Input Current  
=
0V  
−0.1  
−0.1  
−1.0  
µA  
V
0.1  
0.1  
1.0  
Note 3: IOL and IOH are tested one output at a time.  
3
www.fairchildsemi.com  
AC Electrical Characteristics (Note 4)  
T
A = 25°C, CL = 50 pF, RL = 200k, Input tr = tf = 20 ns, unless otherwise specified  
Symbol  
Parameter  
Conditions  
Min  
Typ  
240  
100  
70  
Max  
480  
200  
140  
350  
150  
110  
7.5  
Units  
tPHL or tPLH  
tTHL or tTLH  
CIN  
Propagation Delay Time  
V
V
V
V
V
V
CC = 5V  
CC = 10V  
CC = 15V  
CC = 5V  
ns  
Transition Time  
175  
75  
CC = 10V  
CC = 15V  
ns  
pF  
60  
Input Capacitance  
Any Input  
5
Note 4: AC Parameters are guaranteed by DC correlated testing.  
Switching Time Waveforms  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted  
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow  
Package Number M16A  
5
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide  
Package Number N16E  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
www.fairchildsemi.com  
6

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