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MC14028BDEBS [MOTOROLA]

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MC14028BDEBS
型号： MC14028BDEBS
厂家： MOTOROLA    MOTOROLA
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解码器 CD
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SEMICONDUCTOR TECHNICAL DATA  
L SUFFIX  
CERAMIC  
CASE 620  
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.  
P SUFFIX  
PLASTIC  
CASE 648  
•
•
•
Diode Protection on All Inputs  
D SUFFIX  
SOIC  
CASE 751B  
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.  
•
•
•
ORDERING INFORMATION  
MC14XXXBCP  
MC14XXXBCL  
MC14XXXBD  
Plastic  
Ceramic  
SOIC  
MAXIMUM RATINGS* (Voltages Referenced to V  
)
SS  
T
A
= – 55° to 125°C for all packages.  
Symbol  
Parameter  
DC Supply Voltage  
Value  
Unit  
V
V
DD  
– 0.5 to + 18.0  
V , V  
in out  
Input or Output Voltage (DC or Transient)  
– 0.5 to V  
DD  
+ 0.5  
V
l , l  
in out  
Input or Output Current (DC or Transient),  
per Pin  
± 10  
mA  
P
Power Dissipation, per Package†  
Storage Temperature  
500  
mW  
C
D
T
stg  
– 65 to + 150  
260  
T
Lead Temperature (8–Second Soldering)  
C
L
* Maximum Ratings are those values beyond which damage to the device may occur.  
†Temperature Derating:  
Plastic “P and D/DW” Packages: – 7.0 mW/ C From 65 C To 125 C  
Ceramic “L” Packages: – 12 mW/ C From 100 C To 125 C  
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
BLOCK DIAGRAM  
Q0  
Q1  
3
10  
13  
12  
11  
A
B
C
D
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
14  
3–BIT  
BINARY  
INPUTS  
Q2  
Q3  
Q4  
2
15  
1
OCTAL  
DECODED  
OUTPUTS  
8421  
BCD  
DECIMAL  
DECODED  
OUTPUTS  
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
Q5  
Q6  
Q7  
6
7
4
INPUTS  
Q8  
Q9  
9
5
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
V
V
= PIN 16  
= PIN 8  
DD  
SS  
REV 3  
1/94  
Motorola, Inc. 1995  
ELECTRICAL CHARACTERISTICS (Voltages Referenced to V  
)
SS  
– 55 C  
25 C  
Typ #  
125 C  
V
Vdc  
DD  
Characteristic  
Output Voltage  
Symbol  
Unit  
Min  
Max  
Min  
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  
DD  
or 0  
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)  
O
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  
—
—
—
V
IH  
(V = 1.0 or 9.0 Vdc)  
O
(V = 1.5 or 13.5 Vdc)  
O
Output Drive Current  
mAdc  
(V  
(V  
(V  
(V  
= 2.5 Vdc)  
= 4.6 Vdc)  
= 9.5 Vdc)  
= 13.5 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  
OH  
OH  
OH  
I
OH  
15  
(V  
OL  
(V  
OL  
(V  
OL  
= 0.4 Vdc)  
= 0.5 Vdc)  
= 1.5 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  
I
OL  
Input Current  
I
15  
—
—
—
± 0.1  
—
—
±0.00001  
± 0.1  
—
—
± 1.0  
µAdc  
in  
Input Capacitance  
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  
Total Supply Current**†  
I
T
5.0  
10  
15  
I
T
I
T
I
T
= (0.3 µA/kHz) f + I  
= (0.6 µA/kHz) f + I  
= (0.9 µA/kHz) f + I  
DD  
DD  
DD  
(Dynamic plus Quiescent,  
Per Package)  
(C = 50 pF on all outputs, all  
L
buffers switching)  
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.  
**The formulas given are for the typical characteristics only at 25 C.  
†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  
DD  
– V ) in volts, f in kHz is input frequency, and k = 0.001.  
SS  
T
L
PIN ASSIGNMENT  
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  
Q4  
Q2  
1
2
16  
15  
V
DD  
Q3  
voltages to this high-impedance circuit. For proper operation, V and  
in  
V
should be constrained to the range V  
SS  
≤ (V or V ) ≤ V .  
in out DD  
out  
Unused inputs must always be tied to an appropriate logic voltage  
Q0  
Q7  
Q9  
Q5  
Q6  
3
4
5
6
7
8
14  
13  
12  
11  
10  
9
Q1  
B
level (e.g., either V  
or V ). Unused outputs must be left open.  
DD  
SS  
C
D
A
V
Q8  
SS  
MC14028B  
114  
MOTOROLA CMOS LOGIC DATA  
SWITCHING CHARACTERISTICS* (C = 50 pF, T = 25 C)  
L
A
Characteristic  
Symbol  
V
DD  
Min  
Typ #  
Max  
Unit  
Output Rise and Fall Time  
t
t
,
ns  
TLH  
t
t
t
, t  
= (1.5 ns/pF) C + 25 ns  
= (0.75 ns/pF) C + 12.5 ns  
L
= (0.55 ns/pF) C + 9.5 ns  
5.0  
10  
15  
—
—
—
100  
50  
40  
200  
100  
80  
TLH THL  
L
THL  
, t  
TLH THL  
, t  
TLH THL  
L
Propagation Delay Time  
t
t
,
ns  
PLH  
t
t
t
, t  
= (1.7 ns/pF) C + 215 ns  
= (0.66 ns/pF) C + 97 ns  
= (0.5 ns/pF) C + 65 ns  
L
5.0  
10  
15  
—
—
—
300  
130  
90  
600  
260  
180  
PLH PHL  
L
L
PHL  
, t  
PLH PHL  
, t  
PLH PHL  
* The formulas given are for the typical characteristics only at 25 C.  
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.  
20 ns  
INPUT A  
20 ns  
Inputs B, C, and D  
switching in respect  
to a BCD code.  
All outputs connected  
V
V
DD  
90%  
to respective C loads.  
L
f in respect to a system  
clock.  
50%  
10%  
SS  
1/f  
20 ns  
90%  
20 ns  
V
V
DD  
INPUT C  
50%  
10%  
PLH  
SS  
Inputs A, B, and D low.  
t
t
PHL  
V
V
OH  
90%  
50%  
t
Q4  
10%  
OL  
t
TLH  
THL  
Figure 1. Dynamic Signal Waveforms  
MOTOROLA CMOS LOGIC DATA  
MC14028B  
115  
LOGIC DIAGRAM  
Q0  
Q1  
Q2  
Q3  
Q4  
Q5  
Q6  
Q7  
Q8  
Q9  
A
B
C
D
APPLICATIONS INFORMATION  
INPUTS  
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 hexadeci-  
mal 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 combination DCBA  
= 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 in-  
verters.  
D
D
C
B
A
A
D
C
B
A
C
B
MC14028B  
MC14028B  
Q9  
Q0  
Q9  
Q0  
15  
–8  
15  
–0  
OUTPUT NUMBERS  
The MC14028B can be used in decimal digit displays,  
such as, neon readouts or incandescent projection indicators  
as shown in Figure 4.  
Figure 2. Code Conversion Circuit and Truth Table  
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
MC14028B  
116  
MOTOROLA CMOS LOGIC DATA  
INPUTS  
A
B
C
D
A
E
B
F
INHIBIT  
–D  
(NO SELECTION)  
C
MC14028B  
Q0  
Q9  
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C D  
MC14028B  
MC14028B  
MC14028B  
MC14028B  
MC14028B  
MC14028B  
MC14028B  
MC14028B  
Q9  
Q0  
0
Q9 Q0 Q9 Q0  
Q9 Q0  
Q9 Q0  
Q9 Q0  
Q9 Q0  
Q9 Q0  
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  
A
NEON  
DISPLAY  
INCANDESCENT  
DISPLAY  
B
C
D
OR  
MC14028B  
0
9
Q8  
Q9  
9
2
1
0
Figure 4. Decimal Digit Display Application  
MOTOROLA CMOS LOGIC DATA  
MC14028B  
117  
OUTLINE DIMENSIONS  
L SUFFIX  
CERAMIC DIP PACKAGE  
CASE 620–10  
ISSUE V  
–A–  
NOTES:  
1. DIMENSIONING AND TOLERANCING PER  
ANSI Y14.5M, 1982.  
2. CONTROLLING DIMENSION: INCH.  
3. DIMENSION L TO CENTER OF LEAD WHEN  
FORMED PARALLEL.  
4. DIMENSION F MAY NARROW TO 0.76 (0.030)  
WHERE THE LEAD ENTERS THE CERAMIC  
BODY.  
16  
1
9
8
–B–  
C
L
INCHES  
MILLIMETERS  
DIM  
A
B
C
D
MIN  
MAX  
0.785  
0.295  
0.200  
0.020  
MIN  
19.05  
6.10  
–––  
MAX  
19.93  
7.49  
5.08  
0.50  
0.750  
0.240  
–––  
–T–  
SEATING  
PLANE  
0.015  
0.39  
K
N
E
0.050 BSC  
1.27 BSC  
F
0.055  
0.065  
1.40  
1.65  
G
H
K
L
M
N
0.100 BSC  
2.54 BSC  
M
E
0.008  
0.125  
0.015  
0.170  
0.21  
3.18  
0.38  
4.31  
F
J 16 PL  
G
0.300 BSC  
7.62 BSC  
M
S
0.25 (0.010)  
T B  
0
15  
0
15  
D 16 PL  
0.25 (0.010)  
0.020  
0.040  
0.51  
1.01  
M
S
T
A
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.  
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.  
5. ROUNDED CORNERS OPTIONAL.  
16  
1
9
8
B
S
INCHES  
MILLIMETERS  
DIM  
A
B
C
D
F
MIN  
MAX  
0.770  
0.270  
0.175  
0.021  
0.70  
MIN  
18.80  
6.35  
3.69  
0.39  
1.02  
MAX  
19.55  
6.85  
4.44  
0.53  
1.77  
F
0.740  
0.250  
0.145  
0.015  
0.040  
C
L
SEATING  
–T–  
G
H
J
K
L
0.100 BSC  
0.050 BSC  
2.54 BSC  
1.27 BSC  
PLANE  
K
M
0.008  
0.015  
0.130  
0.305  
10  
0.21  
0.38  
3.30  
7.74  
10  
H
J
0.110  
0.295  
0
2.80  
7.50  
0
G
D 16 PL  
0.25 (0.010)  
M
S
0.020  
0.040  
0.51  
1.01  
M
M
T
A
MC14028B  
118  
MOTOROLA CMOS LOGIC DATA  
OUTLINE DIMENSIONS  
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
8
–B–  
P 8 PL  
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)  
PER SIDE.  
M
S
0.25 (0.010)  
B
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  
INCHES  
DIM  
A
B
C
D
MIN  
9.80  
3.80  
1.35  
0.35  
0.40  
MAX  
10.00  
4.00  
1.75  
0.49  
1.25  
MIN  
MAX  
0.393  
0.157  
0.068  
0.019  
0.049  
F
0.386  
0.150  
0.054  
0.014  
0.016  
R X 45  
K
C
F
G
J
K
M
P
R
1.27 BSC  
0.050 BSC  
–T–  
SEATING  
PLANE  
0.19  
0.10  
0
0.25  
0.25  
7
0.008  
0.004  
0
0.009  
0.009  
7
J
M
D
16 PL  
5.80  
0.25  
6.20  
0.50  
0.229  
0.010  
0.244  
0.019  
M
S
S
0.25 (0.010)  
T
B
A
Motorolareserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representationorguaranteeregarding  
the suitability of its products for any particular purpose, nor does Motorola 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 consequential or incidental damages. “Typical” parameters which may be provided  
in Motorola 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. Motorola does not convey any license under its patent  
rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant  
into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a  
situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application,  
Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and  
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or  
unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and  
trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.  
are registered  
How to reach us:  
USA/EUROPE/Locations Not Listed: Motorola Literature Distribution;  
JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,  
P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454  
3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315  
MFAX: RMFAX0@email.sps.mot.com – TOUCHTONE 602–244–6609  
INTERNET: http://Design–NET.com  
ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,  
51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298  
MC14028B/D  
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