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CD4511BM/CD4511BC BCD-to-7 Segment Latch/Decoder/Driver
February 1988
CD4511BM/CD4511BC BCD-to-7 Segment
Latch/Decoder/Driver
General Description
The CD4511BM/CD4511BC BCD-to-seven segment latch/
decoder/driver is constructed with complementary MOS
(CMOS) enhancement mode devices and NPN bipolar out-
put drivers in a single monolithic structure. The circuit pro-
vides the functions of a 4-bit storage latch, an 8421 BCD-to-
seven segment decoder, and an output drive capability.
Lamp test (LT), blanking (BI), and latch enable (LE) inputs
are used to test the display, to turn-off or pulse modulate
the brightness of the display, and to store a BCD code,
respectively. It can be used with seven-segment light emit-
ting diodes (LED), incandescent, fluorescent, gas discharge,
or liquid crystal readouts either directly or indirectly.
Applications include instrument (e.g., counter, DVM, etc.)
display driver, computer/calculator display driver, cockpit
display driver, and various clock, watch, and timer uses.
Features
Y
Low logic circuit power dissipation
Y
High current sourcing outputs (up to 25 mA)
Y
Latch storage of code
Y
Blanking input
Y
Lamp test provision
Y
Readout blanking on all illegal input combinations
Y
Lamp intensity modulation capability
Y
Time share (multiplexing) facility
Y
Equivalent to Motorola MC14511
Connection Diagram
Dual-In-Line Package
Truth Table
In
puts Outputs
LE BI LT D C B A a b c d e f g Display
X X 0XXXX1111111 B
X 0 1XXXX0000000
0 1 1 00001111110 0
0 1 1 00010110000 1
0 1 1 00101101101 2
0 1 1 00111111001 3
0 1 1 01000110011 4
0 1 1 01011011011 5
0 1 1 01100011111 6
0 1 1 01111110000 7
0 1 1 10001111111 8
0 1 1 10011110011 9
0 1 1 10100000000
0 1 1 10110000000
0 1 1 11000000000
0 1 1 11010000000
0 1 1 11100000000
0 1 1 11110000000
111XXXX *
TL/F/5991±1
Top View
Order Number CD4511B
*
Segment Identification
X
e
Don't Care
*Depends upon the BCD code applied during the 0 to 1 transition of LE.
Display
TL/F/5991±3
TL/F/5991±2
C
1995 National Semiconductor Corporation
TL/F/5991
RRD-B30M105/Printed in U. S. A.
Absolute Maximum Ratings
(Notes1&2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
DC Supply Voltage (V
DD
)
b
0.5V to
a
18V
Input Voltage (V
IN
)
b
0.5V to V
DD
a
0.5V
Storage Temperature Range (T
S
)
b
65
§
Cto
a
150
§
C
Power Dissipation (P
D
)
Dual-In-Line
Recommended Operating
Conditions
(Note 2)
DC Supply Voltage (V
DD
)
3Vto15V
Input Voltage (V
IN
)
0VtoV
DD
Operating Temperature Range (T
A
)
CD4510BM, CD4516BM
b
55
§
Cto
a
125
§
C
CD4510BC, CD4516BC
b
40
§
Cto
a
85
§
C
700 mW
Small Outline
500 mW
Lead Temperature (T
L
)
(Soldering, 10 seconds)
260
§
C
DC Electrical Characteristics
CD4511BM
Symbol Parameter
Conditions
b
55
§
C
a
25
§
C
a
125
§
C
Units
Min Max Min Typ Max Min Max
I
DD
Quiescent
V
DD
e
5V, V
IN
e
V
DD
or V
SS
5
5
150
m
A
Supply Current V
DD
e
10V, V
IN
e
V
DD
or V
SS
10
10
300
m
A
V
DD
e
15V, V
IN
e
V
DD
or V
SS
20
20
600
m
A
V
OL
Output Voltage V
DD
e
5V
0.01
0
0.01
0.05 V
Logical ``0'' V
DD
e
10V
0.01
0
0.01
0.05 V
Level
V
DD
e
15V
0.01
0
0.01
0.05 V
V
OH
Output Voltage V
DD
e
5V
4.1
4.1 4.57
4.1
V
Logical ``1'' V
DD
e
10V
9.1
9.1 9.58
9.1
V
Level
V
DD
e
15V
14.1
14.1 14.59
14.1
V
V
IL
Low Level
V
DD
e
5V, V
OUT
e
3.8V or 0.5V
1.5
2
1.5
1.5 V
Input Voltage V
DD
e
10V, V
OUT
e
8.8V or 1.0V
3.0
4
3.0
3.0 V
V
DD
e
15V, V
OUT
e
13.8V or 1.5V
4.0
6
4.0
4.0 V
V
IH
High Level
V
DD
e
5V, V
OUT
e
0.5V or 3.8V 3.5
3.5
3
3.5
V
Input Voltage V
DD
e
10V, V
OUT
e
1.0V or 8.8V 7.0
7.0
6
7.0
V
V
DD
e
15V, V
OUT
e
1.5V or 13.8V 11.0
11.0 9
11.0
V
V
OH
Output
V
DD
e
5V, I
OH
e
0 mA
4.1
4.1 4.57
4.1
V
(Source) Drive V
DD
e
5V, I
OH
e
5 mA
4.24
V
Voltage
V
DD
e
5V, I
OH
e
10 mA
3.9
3.9 4.12
3.5
V
V
DD
e
5V, I
OH
e
15 mA
3.94
V
V
DD
e
5V, I
OH
e
20 mA
3.4
3.4 3.75
3.0
V
V
DD
e
5V, I
OH
e
25 mA
3.54
V
V
DD
e
10V, I
OH
e
0 mA
9.1
9.1 9.58
9.1
V
V
DD
e
10V, I
OH
e
5 mA
9.26
V
V
DD
e
10V, I
OH
e
10 mA
9.0
9.0 9.17
8.6
V
V
DD
e
10V, I
OH
e
15 mA
9.04
V
V
DD
e
10V, I
OH
e
20 mA
8.6
8.6 8.9
8.2
V
V
DD
e
10V, I
OH
e
25 mA
8.75
V
V
DD
e
15V, I
OH
e
0 mA
14.1
14.1 9.58
14.1
V
V
DD
e
15V, I
OH
e
5 mA
14.27
V
V
DD
e
15V, I
OH
e
10 mA
14.0
14.0 14.17
13.6
V
V
DD
e
15V, I
OH
e
15 mA
14.07
V
V
DD
e
15V, I
OH
e
20 mA
13.6
13.6 13.95
13.2
V
V
DD
e
15V, I
OH
e
25 mA
13.8
V
I
OL
Low Level
V
DD
e
5V, V
OL
e
0.4V
0.64
0.51 0.88
0.36
mA
Output Current V
DD
e
10V, V
OL
e
0.5V
1.6
1.3 2.25
0.9
mA
V
DD
e
15V, V
OL
e
1.5V
4.2
3.4 8.8
2.4
mA
I
IN
Input Current V
DD
e
15V, V
IN
e
0V
b
0.10
b
10
b
5
b
0.10
b
1.0
m
A
V
DD
e
15V, V
IN
e
15V
0.10
10
b
5
0.10
1.0
m
A
Note 1: Devices should not be connected with power on.
2
DC Electrical Characteristics
CD4511BC
Symbol Parameter
Conditions
b
55
§
C
a
25
§
C
a
85
§
C
Units
Min Max Min Typ Max Min Max
I
DD
Quiescent
V
DD
e
5V
20
20
150
m
A
Supply Current V
DD
e
10V
40
40
300
m
A
V
DD
e
15V
80
80
600
m
A
V
OL
Output Voltage V
DD
e
5V
0.01
0
0.01
0.05 V
Logical ``0'' V
DD
e
10V
0.01
0
0.01
0.05 V
Level
V
DD
e
15V
0.01
0
0.01
0.05 V
V
OH
Output Voltage V
DD
e
5V
4.1
4.1 4.57
4.1
V
Logical ``1'' V
DD
e
10V
9.1
9.1 9.58
9.1
V
Level
V
DD
e
15V
14.1
14.1 14.59
14.1
V
V
IL
Low Level
V
DD
e
5V, V
OUT
e
3.8V or 0.5V
1.5
2
1.5
1.5 V
Input Voltage V
DD
e
10V, V
OUT
e
8.8V or 1.0V
3.0
4
3.0
3.0 V
V
DD
e
15V, V
OUT
e
13.8V or 1.5V
4.0
6
4.0
4.0 V
V
IH
High Level V
DD
e
5V, V
OUT
e
0.5V or 3.8V 3.5
3.5
3
3.5
V
Input Voltage V
DD
e
10V, V
OUT
e
1.0V or 8.8V 7.0
7.0
6
7.0
V
V
DD
e
15V, V
OUT
e
1.5V or 13.8V 11.0
11.0
9
11.0
V
V
OH
Output
V
DD
e
5V, I
OH
e
0 mA
4.1
4.1 4.57
4.1
V
(Source) Drive V
DD
e
5V, I
OH
e
5 mA
4.24
V
Voltage
V
DD
e
5V, I
OH
e
10 mA
3.6
3.6 4.12
3.3
V
V
DD
e
5V, I
OH
e
15 mA
3.94
V
V
DD
e
5V, I
OH
e
20 mA
2.8
2.8 3.75
2.5
V
V
DD
e
5V, I
OH
e
25 mA
3.54
V
V
DD
e
10V, I
OH
e
0 mA
9.1
9.1 9.58
9.1
V
V
DD
e
10V, I
OH
e
5 mA
9.26
V
V
DD
e
10V, I
OH
e
10 mA
8.75
8.75 9.17
8.45
V
V
DD
e
10V, I
OH
e
15 mA
9.04
V
V
DD
e
10V, I
OH
e
20 mA
8.1
8.1 8.9
7.8
V
V
DD
e
10V, I
OH
e
25 mA
8.75
V
V
DD
e
15V, I
OH
e
0 mA
14.1
14.1 14.59
14.1
V
V
DD
e
15V, I
OH
e
5 mA
14.27
V
V
DD
e
15V, I
OH
e
10 mA
13.75
13.75 14.18
13.45
V
V
DD
e
15V, I
OH
e
15 mA
14.07
V
V
DD
e
15V, I
OH
e
20 mA
13.1
13.1 13.95
12.8
V
V
DD
e
15V, I
OH
e
25 mA
13.8
V
I
OL
Low Level
V
DD
e
5V, V
OL
e
0.4V
0.52
0.44 0.88
0.36
mA
Output Current V
DD
e
10V, V
OL
e
0.5V
1.3
1.1 2.25
0.9
mA
V
DD
e
15V, V
OL
e
1.5V
3.6
3.0 8.8
2.4
mA
I
IN
Input Current V
DD
e
15V, V
IN
e
0V
b
0.30
b
10
b
5
b
0.30
b
1.0
m
A
V
DD
e
15V, V
IN
e
15V
0.30
10
b
5
0.30
1.0
m
A
3
AC Electrical Characteristics*
T
A
e
25
§
C and C
L
e
50 pF, typical temperature coefficient for all values of V
DD
e
0.3%/
§
C
Symbol
Parameter
Conditions
CD4511BX
Units
Min
Typ
Max
C
IN
Input Capacitance
V
IN
e
0
5.0
7.5
pF
t
r
Output Rise Time
V
DD
e
5V
40
80
ns
(Figure1a)
V
DD
e
10V
30
60
ns
V
DD
e
15V
25
50
ns
t
f
Output Fall Time
V
DD
e
5V
125
250
ns
(Figure1a)
V
DD
e
10V
75
150
ns
V
DD
e
15V
65
130
ns
t
PLH
Turn-Off Delay Time
V
DD
e
5V
640
1280
ns
(Data) (Figure1a)
V
DD
e
10V
250
500
ns
V
DD
e
15V
175
350
ns
t
PHL
Turn-On Delay Time
V
DD
e
5V
720
1440
ns
(Data) (Figure1a)
V
DD
e
10V
290
580
ns
V
DD
e
15V
195
400
ns
t
PLH
Turn-Off Delay Time
V
DD
e
5V
320
640
ns
(Blank) (Figure1a)
V
DD
e
10V
130
260
ns
V
DD
e
15V
100
200
ns
t
PHL
Turn-On Delay Time
V
DD
e
5V
485
970
ns
(Blank) (Figure1a)
V
DD
e
10V
200
400
ns
V
DD
e
15V
160
320
ns
t
PLH
Turn-Off Delay Time
V
DD
e
5V
313
625
ns
(Lamp Test) (Figure1a)
V
DD
e
10V
125
250
ns
V
DD
e
15V
90
180
ns
t
PHL
Turn-On Delay Time
V
DD
e
5V
313
625
ns
(Lamp Test) (Figure1a)
V
DD
e
10V
125
250
ns
V
DD
e
15V
90
180
ns
t
SETUP
Setup Time
V
DD
e
5V
180
90
ns
(Figure1b)
V
DD
e
10V
76
38
ns
V
DD
e
15V
40
20
ns
t
HOLD
Hold Time
V
DD
e
5V
0
b
90
ns
(Figure1b)
V
DD
e
10V
0
b
38
ns
V
DD
e
15V
0
b
20
ns
PW
LE
Minimum Latch Enable
V
DD
e
5V
520
260
ns
Pulse Width (Figure1c)
V
DD
e
10V
220
110
ns
V
DD
e
15V
130
65
ns
*AC Parameters are guaranteed by DC correlated testing.
4
Switching Time Waveforms
TL/F/5991±4
FIGURE 1
Typical Applications
Light Emitting Diode (LED) Readout
TL/F/5991±6
TL/F/5991±5
5
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