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MC14028BFEL [ONSEMI]

BCD-To-Decimal Decoder Binary-To-Octal Decoder; BCD到十进制解码器二进制到八进制解码器
MC14028BFEL
型号： MC14028BFEL
厂家： ONSEMI    ONSEMI
描述：

BCD-To-Decimal Decoder Binary-To-Octal Decoder
BCD到十进制解码器二进制到八进制解码器

解码器 驱动器 逻辑集成电路 光电二极管 CD
文件： 总8页 (文件大小：219K)
中文：  中文翻译
下载：  下载PDF数据表文档文件
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The MC14028B decoder is constructed so that an 8421 BCD code  
on the four inputs provides a decimal (one–of–ten) decoded output,  
while a 3–bit binary input provides a decoded octal (one–of–eight)  
code output with D forced to a logic “0”. Expanded decoding such as  
binary–to–hexadecimal (one–of–16), etc., can be achieved by using  
other MC14028B devices. The part is useful for code conversion,  
address decoding, memory selection control, demultiplexing, or  
readout decoding.  
http://onsemi.com  
MARKING  
DIAGRAMS  
16  
• Diode Protection on All Inputs  
PDIP–16  
P SUFFIX  
CASE 648  
MC14028BCP  
AWLYYWW  
• Supply Voltage Range = 3.0 Vdc to 18 Vdc  
• Capable of Driving Two Low–power TTL Loads or One Low–power  
Schottky TTL Load Over the Rated Temperature Range  
• Positive Logic Design  
• Low Outputs on All Illegal Input Combinations  
• Similar to CD4028B.  
1
16  
SOIC–16  
D SUFFIX  
CASE 751B  
14028B  
AWLYWW  
1
MAXIMUM RATINGS (Voltages Referenced to V ) (Note 2.)  
16  
SS  
SOEIAJ–16  
F SUFFIX  
CASE 966  
Symbol  
Parameter  
Value  
Unit  
V
MC14028B  
AWLYWW  
V
DD  
DC Supply Voltage Range  
–0.5 to +18.0  
V , V  
in out  
Input or Output Voltage Range  
(DC or Transient)  
–0.5 to V + 0.5  
V
DD  
1
I , I  
Input or Output Current  
(DC or Transient) per Pin  
±10  
mA  
in out  
A
= Assembly Location  
WL or L = Wafer Lot  
YY or Y = Year  
WW or W = Work Week  
P
D
Power Dissipation,  
per Package (Note 3.)  
500  
mW  
T
Ambient Temperature Range  
Storage Temperature Range  
–55 to +125  
–65 to +150  
260  
°C  
°C  
°C  
A
T
stg  
ORDERING INFORMATION  
T
Lead Temperature  
L
(8–Second Soldering)  
Device  
Package  
PDIP–16  
SOIC–16  
Shipping  
2. Maximum Ratings are those values beyond which damage to the device  
may occur.  
3. Temperature Derating:  
MC14028BCP  
MC14028BD  
2000/Box  
2400/Box  
Plastic “P and D/DW” Packages: – 7.0 mW/ C From 65 C To 125 C  
MC14028BDR2  
SOIC–16 2500/Tape & Reel  
This device contains protection circuitry to guard against damage due to high  
static voltages or electric fields. However, precautions must be taken to avoid  
applications of any voltage higher than maximum rated voltages to this  
MC14028BF  
SOEIAJ–16  
SOEIAJ–16  
See Note 1.  
See Note 1.  
MC14028BFEL  
high–impedancecircuit. For proper operation, V and V should be constrained  
in  
out  
to the range V  
(V or V  
)
V
.
SS  
in  
out  
DD  
1. For ordering information on the EIAJ version of  
the SOIC packages, please contact your local  
ON Semiconductor representative.  
Unused inputs must always be tied to an appropriate logic voltage level (e.g.,  
either V or V ). Unused outputs must be left open.  
SS  
DD  
Semiconductor Components Industries, LLC, 2000  
1
Publication Order Number:  
March, 2000 – Rev. 3  
MC14028B/D  
MC14028B  
PIN ASSIGNMENT  
Q4  
Q2  
Q0  
Q7  
Q9  
Q5  
Q6  
1
2
3
4
5
6
7
8
16  
V
DD  
15 Q3  
14 Q1  
13  
12  
11  
10  
9
B
C
D
A
Q8  
V
SS  
TRUTH TABLE  
D C B A Q9 Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0  
0
0
0
0
0
0
0
0
0
0
1
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
1
0
0
1
0
0
1
0
0
1
0
0
0
0
0
0
0
1
1
1
1
0
0
1
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
0
1
1
0
1
0
1
0
1
0
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
1
1
1
1
1
1
1
1
0
0
1
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
BLOCK DIAGRAM  
Q0  
Q1  
Q2  
Q3  
Q4  
Q5  
Q6  
Q7  
Q8  
Q9  
3
10  
A
B
C
D
14  
2
15  
1
3–BIT  
BINARY  
INPUTS  
OCTAL  
DECODED  
OUTPUTS  
13  
12  
11  
8421  
BCD  
INPUTS  
DECIMAL  
DECODED  
OUTPUTS  
6
7
4
9
5
V
V
= PIN 16  
= PIN 8  
DD  
SS  
http://onsemi.com  
2
MC14028B  
ELECTRICAL CHARACTERISTICS (Voltages Referenced to V  
)
SS  
– 55 C  
25 C  
125 C  
V
Vdc  
DD  
(4.)  
Characteristic  
Output Voltage  
Symbol  
Unit  
Min  
Max  
Min  
Typ  
Max  
Min  
Max  
“0” Level  
“1” Level  
“0” Level  
5.0  
10  
15  
—
—
—
0.05  
0.05  
0.05  
—
—
—
0
0
0
0.05  
0.05  
0.05  
—
—
—
0.05  
0.05  
0.05  
Vdc  
V
in  
= V or 0  
DD  
V
OL  
5.0  
10  
15  
4.95  
9.95  
14.95  
—
—
—
4.95  
9.95  
14.95  
5.0  
10  
15  
—
—
—
4.95  
9.95  
14.95  
—
—
—
Vdc  
Vdc  
V
in  
= 0 or V  
V
OH  
DD  
Input Voltage  
(V = 4.5 or 0.5 Vdc)  
5.0  
10  
15  
—
—
—
1.5  
3.0  
4.0  
—
—
—
2.25  
4.50  
6.75  
1.5  
3.0  
4.0  
—
—
—
1.5  
3.0  
4.0  
O
V
IL  
(V = 9.0 or 1.0 Vdc)  
O
(V = 13.5 or 1.5 Vdc)  
O
“1” Level  
Vdc  
(V = 0.5 or 4.5 Vdc)  
5.0  
10  
15  
3.5  
7.0  
11  
—
—
—
3.5  
7.0  
11  
2.75  
5.50  
8.25  
—
—
—
3.5  
7.0  
11  
—
—
—
O
V
IH  
(V = 1.0 or 9.0 Vdc)  
O
(V = 1.5 or 13.5 Vdc)  
O
Output Drive Current  
mAdc  
(V = 2.5 Vdc)  
Source  
Sink  
5.0  
5.0  
10  
– 3.0  
– 0.64  
– 1.6  
– 4.2  
—
—
—
—
– 2.4  
– 0.51  
– 1.3  
– 3.4  
– 4.2  
– 0.88  
– 2.25  
– 8.8  
—
—
—
—
– 1.7  
– 0.36  
– 0.9  
– 2.4  
—
—
—
—
OH  
(V = 4.6 Vdc)  
I
OH  
OH  
(V = 9.5 Vdc)  
OH  
(V = 13.5 Vdc)  
OH  
15  
(V = 0.4 Vdc)  
5.0  
10  
15  
0.64  
1.6  
4.2  
—
—
—
0.51  
1.3  
3.4  
0.88  
2.25  
8.8  
—
—
—
0.36  
0.9  
2.4  
—
—
—
mAdc  
OL  
(V = 0.5 Vdc)  
I
OL  
OL  
(V = 1.5 Vdc)  
OL  
Input Current  
Input Capacitance  
I
15  
—
—
—
± 0.1  
—
—
±0.00001  
± 0.1  
—
—
± 1.0  
µAdc  
in  
C
—
5.0  
7.5  
—
pF  
in  
(V = 0)  
in  
Quiescent Current  
(Per Package)  
I
5.0  
10  
15  
—
—
—
5.0  
10  
20  
—
—
—
0.005  
0.010  
0.015  
5.0  
10  
20  
—
—
—
150  
300  
600  
µAdc  
µAdc  
DD  
(5.) (6.)  
Total Supply Current  
I
T
5.0  
10  
15  
I = (0.3 µA/kHz) f + I  
T
I = (0.6 µA/kHz) f + I  
T
I = (0.9 µA/kHz) f + I  
T
DD  
DD  
DD  
(Dynamic plus Quiescent,  
Per Package)  
(C = 50 pF on all outputs, all  
L
buffers switching)  
4. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.  
5. The formulas given are for the typical characteristics only at 25 C.  
6. To calculate total supply current at loads other than 50 pF:  
I (C ) = I (50 pF) + (C – 50) Vfk  
T
L
T
L
where: I is in µA (per package), C in pF, V = (V – V ) in volts, f in kHz is input frequency, and k = 0.001.  
T
L
DD  
SS  
SWITCHING CHARACTERISTICS (7.) (C = 50 pF, T = 25 C)  
L
A
(8.)  
Characteristic  
Symbol  
V
DD  
Min  
Typ  
Max  
Unit  
Output Rise and Fall Time  
t
,
ns  
TLH  
t
t
t
, t  
= (1.5 ns/pF) C + 25 ns  
t
THL  
5.0  
10  
15  
—
—
—
100  
50  
40  
200  
100  
80  
TLH THL  
L
, t  
= (0.75 ns/pF) C + 12.5 ns  
TLH THL  
L
, t  
= (0.55 ns/pF) C + 9.5 ns  
L
TLH THL  
Propagation Delay Time  
t
,
ns  
PLH  
t
t
t
, t  
= (1.7 ns/pF) C + 215 ns  
= (0.66 ns/pF) C + 97 ns  
L
= (0.5 ns/pF) C + 65 ns  
L
t
PHL  
5.0  
10  
15  
—
—
—
300  
130  
90  
600  
260  
180  
PLH PHL  
L
, t  
PLH PHL  
, t  
PLH PHL  
7. The formulas given are for the typical characteristics only at 25 C.  
8. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.  
http://onsemi.com  
3
MC14028B  
20 ns  
INPUT A  
20 ns  
Inputs B, C, and D  
switching in respect  
to a BCD code.  
All outputs connected  
V
DD  
90%  
to respective C loads.  
L
50%  
f in respect to a system  
clock.  
10%  
V
SS  
1/f  
20 ns  
90%  
20 ns  
V
DD  
INPUT C  
50%  
10%  
V
SS  
Inputs A, B, and D low.  
t
t
PHL  
PLH  
V
OH  
90%  
50%  
Q4  
10%  
V
OL  
t
t
THL  
TLH  
Figure 1. Dynamic Signal Waveforms  
LOGIC DIAGRAM  
Q0  
Q1  
Q2  
Q3  
Q4  
Q5  
Q6  
Q7  
Q8  
Q9  
A
B
C
D
http://onsemi.com  
4
MC14028B  
INPUTS  
APPLICATIONS INFORMATION  
D
D
C
B
A
Expanded decoding can be performed by using the  
MC14028B and other CMOS Integrated Circuits. The  
circuit in Figure 2 converts any 4–bit code to a decimal or  
hexadecimal code. The accompanying table shows the input  
binary combinations, the associated “output numbers” that  
go “high” when selected, and the “redefined output  
numbers” needed for the proper code. For example: For the  
combinationDCBA = 0111 the output number 7 is redefined  
for the 4–bit binary, 4–bit gray, excess–3, or excess–3 gray  
codes as 7, 5, 4, or 2, respectively. Figure 3 shows a 6–bit  
binary 1–of–64 decoder using nine MC14028B circuits and  
two MC14069UB inverters.  
D
C
B
A
C
B
A
MC14028B  
MC14028B  
Q9  
Q0  
Q9  
Q0  
–0  
15  
–8  
15  
OUTPUT NUMBERS  
Figure 2. Code Conversion Circuit and Truth Table  
The MC14028B can be used in decimal digit displays,  
such as, neon readouts or incandescent projection indicators  
as shown in Figure 4.  
Code and Redefined  
Output Numbers  
Hexadecimal  
Decimal  
Inputs  
Output Numbers  
D
C
B
A
15 14 13 12 11 10  
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
1
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
0
0
0
1
0
0
1
0
0
1
0
0
1
0
0
0
0
1
2
3
0
1
3
2
0
1
2
3
0
1
2
0
3
0
0
0
0
0
1
1
1
1
0
0
1
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
1
0
0
1
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
5
6
7
7
6
4
5
1
2
3
4
4
4
3
4
1
2
1
1
1
1
0
0
0
0
0
0
1
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
1
0
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
8
9
15  
14  
5
6
7
8
5
6
10 12  
11 13  
9
5
1
1
1
1
1
1
1
1
0
0
1
1
0
1
0
1
0
0
0
1
0
0
1
0
0
1
0
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
0
0
0
12  
13  
14 11  
15 10  
8
9
9
5
6
8
7
6
7
8
9
7
8
9
http://onsemi.com  
5
MC14028B  
INPUTS  
A
B
C
D
A
E
B
F
INHIBIT  
–D  
(NO SELECTION)  
C
MC14028B  
Q0  
Q9  
A B  
MC14028B  
Q0 Q9 Q0  
C
D
A B  
MC14028B  
C
D
A B  
MC14028B  
Q9 Q0 Q9 Q0  
C
D
A B  
MC14028B  
Q9 Q0  
C
D
A B  
MC14028B  
Q9 Q0  
C
D
A B  
MC14028B  
Q9 Q0  
C
D
A B  
MC14028B  
Q9 Q0  
C
D
A B  
MC14028B  
Q9  
C D  
0
7
8
15  
16  
23  
24  
31  
32  
39  
40  
47  
48  
55  
56  
63  
*1/6 MC14069UB  
64 OUTPUTS (SELECTED OUTPUT IS HIGH)  
Figure 3. Six–Bit Binary 1–of–64 Decoder  
APPROPRIATE  
VOLTAGE  
APPROPRIATE  
VOLTAGE  
Q0  
Q1  
Q2  
Q3  
Q4  
Q5  
Q6  
Q7  
Q8  
Q9  
A
NEON  
DISPLAY  
INCANDESCENT  
DISPLAY  
B
C
D
OR  
MC14028B  
0
9
9
2
1
0
Figure 4. Decimal Digit Display Application  
http://onsemi.com  
6
MC14028B  
PACKAGE DIMENSIONS  
PDIP–16  
P SUFFIX  
PLASTIC DIP PACKAGE  
CASE 648–08  
ISSUE R  
NOTES:  
–A–  
1. DIMENSIONING AND TOLERANCING PER ANSI  
Y14.5M, 1982.  
2. CONTROLLING DIMENSION: INCH.  
3. DIMENSION L TO CENTER OF LEADS WHEN  
FORMED PARALLEL.  
16  
1
9
8
B
S
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.  
5. ROUNDED CORNERS OPTIONAL.  
INCHES  
DIM MIN MAX  
0.740 0.770 18.80 19.55  
MILLIMETERS  
MIN MAX  
F
A
B
C
D
F
G
H
J
K
L
M
S
C
L
0.250 0.270  
0.145 0.175  
0.015 0.021  
6.35  
3.69  
0.39  
1.02  
6.85  
4.44  
0.53  
1.77  
0.040  
0.70  
SEATING  
PLANE  
–T–  
0.100 BSC  
0.050 BSC  
0.008 0.015  
2.54 BSC  
1.27 BSC  
K
M
0.21  
0.38  
3.30  
7.74  
10  
H
J
0.110  
0.295 0.305  
10  
0.020 0.040  
0.130  
2.80  
7.50  
0
G
D 16 PL  
0
0.51  
1.01  
M
M
0.25 (0.010)  
T A  
SOIC–16  
D SUFFIX  
PLASTIC SOIC PACKAGE  
CASE 751B–05  
ISSUE J  
–A–  
NOTES:  
1. DIMENSIONING AND TOLERANCING PER ANSI  
Y14.5M, 1982.  
2. CONTROLLING DIMENSION: MILLIMETER.  
3. DIMENSIONS A AND B DO NOT INCLUDE  
MOLD PROTRUSION.  
16  
1
9
–B–  
P 8 PL  
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)  
PER SIDE.  
M
S
0.25 (0.010)  
B
8
5. DIMENSION D DOES NOT INCLUDE DAMBAR  
PROTRUSION. ALLOWABLE DAMBAR  
PROTRUSION SHALL BE 0.127 (0.005) TOTAL  
IN EXCESS OF THE D DIMENSION AT  
MAXIMUM MATERIAL CONDITION.  
G
MILLIMETERS  
DIM MIN MAX  
INCHES  
MIN  
MAX  
0.393  
0.157  
0.068  
0.019  
0.049  
F
A
B
C
D
F
9.80  
3.80  
1.35  
0.35  
0.40  
10.00 0.386  
4.00 0.150  
1.75 0.054  
0.49 0.014  
1.25 0.016  
R X 45  
K
C
G
J
K
M
P
1.27 BSC  
0.050 BSC  
–T–  
SEATING  
PLANE  
0.19  
0.10  
0
0.25 0.008  
0.25 0.004  
0.009  
0.009  
7
J
M
D
16 PL  
7
0
5.80  
0.25  
6.20 0.229  
0.50 0.010  
0.244  
0.019  
M
S
S
0.25 (0.010)  
T B  
A
R
http://onsemi.com  
7
MC14028B  
PACKAGE DIMENSIONS  
SOEIAJ–16  
F SUFFIX  
PLASTIC EIAJ SOIC PACKAGE  
CASE 966–01  
NOTES:  
1. DIMENSIONING AND TOLERANCING PER ANSI  
ISSUE O  
Y14.5M, 1982.  
2. CONTROLLING DIMENSION: MILLIMETER.  
3. DIMENSIONS D AND E DO NOT INCLUDE  
MOLD FLASH OR PROTRUSIONS AND ARE  
MEASURED AT THE PARTING LINE. MOLD FLASH  
OR PROTRUSIONS SHALL NOT EXCEED 0.15  
(0.006) PER SIDE.  
L
E
16  
9
8
Q
1
H
E
M
4. TERMINAL NUMBERS ARE SHOWN FOR  
REFERENCE ONLY.  
E
5. THE LEAD WIDTH DIMENSION (b) DOES NOT  
INCLUDE DAMBAR PROTRUSION. ALLOWABLE  
DAMBAR PROTRUSION SHALL BE 0.08 (0.003)  
TOTAL IN EXCESS OF THE LEAD WIDTH  
DIMENSION AT MAXIMUM MATERIAL CONDITION.  
DAMBAR CANNOT BE LOCATED ON THE LOWER  
RADIUS OR THE FOOT. MINIMUM SPACE  
BETWEEN PROTRUSIONS AND ADJACENT LEAD  
TO BE 0.46 ( 0.018).  
1
L
DETAIL P  
Z
D
VIEW P  
e
MILLIMETERS  
INCHES  
A
DIM MIN  
MAX  
MIN  
–––  
MAX  
0.081  
0.008  
0.020  
0.011  
0.413  
0.215  
c
A
1
–––  
0.05  
0.35  
0.18  
9.90  
5.10  
2.05  
A
0.20 0.002  
0.50 0.014  
0.27 0.007  
10.50 0.390  
5.45 0.201  
b
c
D
E
A
1
b
0.13 (0.005)  
e
1.27 BSC  
0.050 BSC  
0.10 (0.004)  
M
H
7.40  
0.50  
1.10  
0
0.70  
–––  
8.20 0.291  
0.85 0.020  
1.50 0.043  
10  
0.90 0.028  
0.78 –––  
0.323  
0.033  
0.059  
10  
0.035  
0.031  
E
L
L
E
M
Q
0
1
Z
ON Semiconductor and  
are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes  
withoutfurthernoticetoanyproductsherein. SCILLCmakesnowarranty,representationorguaranteeregardingthesuitabilityofitsproductsforanyparticular  
purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,  
including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or  
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be  
validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.  
SCILLCproductsarenotdesigned, intended, orauthorizedforuseascomponentsinsystemsintendedforsurgicalimplantintothebody, orotherapplications  
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EUROPEAN TOLL–FREE ACCESS*: 00–800–4422–3781  
For additional information, please contact your local  
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*Available from Germany, France, Italy, England, Ireland  
MC14028B/D  

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