October 1987
Revised January 1999
CD451
1BC
BCD-t
o
-7 Segment Latc
h
/
Decoder
/Dr
i
ver
1999 Fairchild Semiconductor Corporation
DS005991.prf
www.fairchildsemi.com
CD4511BC
BCD-to-7 Segment Latch/Decoder/Driver
General Description
The CD4511BC BCD-to-seven segment latch/decoder/
driver is constructed with complementary MOS (CMOS)
enhancement mode devices and NPN bipolar output driv-
ers in a single monolithic structure. The circuit provides 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 emitting 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
s
Low logic circuit power dissipation
s
High current sourcing outputs (up to 25 mA)
s
Latch storage of code
s
Blanking input
s
Lamp test provision
s
Readout blanking on all illegal input combinations
s
Lamp intensity modulation capability
s
Time share (multiplexing) facility
s
Equivalent to Motorola MC14511
Ordering Code:
Devices also available in Tape and Reel. Specify by appending suffix letter "X" to the ordering code.
Connection Diagrams
Pin Assignments for SOIC and DIP
Top View
Segment Identification
Order Number
Package Number
Package Description
CD4511BCWM
M16B
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
CD4511BCN
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
3
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CD451
1BC
Absolute Maximum Ratings
(Note 1)
Recommended Operating
Conditions
Note 1: Devices should not be connected with power on.
DC Electrical Characteristics
DC Supply Voltage (V
DD
)
-
0.5V to
+
18V
Input Voltage (V
IN
)
-
0.5V to V
DD
+
0.5V
Storage Temperature Range (T
S
)
-
65
C to
+
150
C
Power Dissipation (P
D
)
Dual-In-Line
700
mW
Small Outline
500 mW
Lead Temperature (T
L
)
(Soldering, 10 seconds)
260
C
DC Supply Voltage (V
DD
)
3V to 15V
Input Voltage (V
IN
)
0V to V
DD
Operating Temperature Range (T
A
)
-
40
C to
+
85
C
Symbol
Parameter
Conditions
-
40
C
+
25
C
+
85
C
Units
Min
Max
Min
Typ
Max
Min
Max
I
DD
Quiescent
V
DD
=
5V
20
20
150
A
Supply Current
V
DD
=
10V
40
40
300
A
V
DD
=
15V
80
80
600
A
V
OL
Output Voltage
V
DD
=
5V
0.01
0
0.01
0.05
V
Logical "0"
V
DD
=
10V
0.01
0
0.01
0.05
V
Level
V
DD
=
15V
0.01
0
0.01
0.05
V
V
OH
Output Voltage
V
DD
=
5V
4.1
4.1
4.57
4.1
V
Logical "1"
V
DD
=
10V
9.1
9.1
9.58
9.1
V
Level
V
DD
=
15V
14.1
14.1
14.59
14.1
V
V
IL
LOW Level
V
DD
=
5V, V
OUT
=
3.8V or 0.5V
1.5
2
1.5
1.5
V
Input Voltage
V
DD
=
10V, V
OUT
=
8.8V or 1.0V
3.0
4
3.0
3.0
V
V
DD
=
15V, V
OUT
=
13.8V or 1.5V
4.0
6
4.0
4.0
V
V
IH
HIGH Level
V
DD
=
5V, V
OUT
=
0.5V or 3.8V
3.5
3.5
3
3.5
V
Input Voltage
V
DD
=
10V, V
OUT
=
1.0V or 8.8V
7.0
7.0
6
7.0
V
V
DD
=
15V, V
OUT
=
1.5V or 13.8V
11.0
11.0
9
11.0
V
V
OH
Output
V
DD
=
5V, I
OH
=
0 mA
4.1
4.1
4.57
4.1
V
(Source) Drive
V
DD
=
5V, I
OH
=
5 mA
4.24
V
Voltage
V
DD
=
5V, I
OH
=
10 mA
3.6
3.6
4.12
3.3
V
V
DD
=
5V, I
OH
=
15 mA
3.94
V
V
DD
=
5V, I
OH
=
20 mA
2.8
2.8
3.75
2.5
V
V
DD
=
5V, I
OH
=
25 mA
3.54
V
V
DD
=
10V, I
OH
=
0 mA
9.1
9.1
9.58
9.1
V
V
DD
=
10V, I
OH
=
5 mA
9.26
V
V
DD
=
10V, I
OH
=
10 mA
8.75
8.75
9.17
8.45
V
V
DD
=
10V, I
OH
=
15 mA
9.04
V
V
DD
=
10V, I
OH
=
20 mA
8.1
8.1
8.9
7.8
V
V
DD
=
10V, I
OH
=
25 mA
8.75
V
V
DD
=
15V, I
OH
=
0 mA
14.1
14.1
14.59
14.1
V
V
DD
=
15V, I
OH
=
5 mA
14.27
V
V
DD
=
15V, I
OH
=
10 mA
13.75
13.75
14.18
13.45
V
V
DD
=
15V, I
OH
=
15 mA
14.07
V
V
DD
=
15V, I
OH
=
20 mA
13.1
13.1
13.95
12.8
V
V
DD
=
15V, I
OH
=
25 mA
13.8
V
I
OL
LOW Level
V
DD
=
5V, V
OL
=
0.4V
0.52
0.44
0.88
0.36
mA
Output Current
V
DD
=
10V, V
OL
=
0.5V
1.3
1.1
2.25
0.9
mA
V
DD
=
15V, V
OL
=
1.5V
3.6
3.0
8.8
2.4
mA
I
IN
Input Current
V
DD
=
15V, V
IN
=
0V
-
0.30
-
10
-
5
-
0.30
-
1.0
A
V
DD
=
15V, V
IN
=
15V
0.30
10
-
5
0.30
1.0
A
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4
C
D
45
11BC
AC Electrical Characteristics
(Note 2)
T
A
=
25
C and C
L
=
50 pF, typical temperature coefficient for all values of V
DD
=
0.3%/
C
Note 2: AC Parameters are guaranteed by DC correlated testing.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
C
IN
Input Capacitance
V
IN
=
0
5.0
7.5
pF
t
r
Output Rise Time
V
DD
=
5V
40
80
ns
(Figure 1a) V
DD
=
10V
30
60
ns
V
DD
=
15V
25
50
ns
t
f
Output Fall Time
V
DD
=
5V
125
250
ns
(Figure 1a)
V
DD
=
10V
75
150
ns
V
DD
=
15V
65
130
ns
t
PLH
Turn-Off Delay Time
V
DD
=
5V
640
1280
ns
(Data) (Figure 1a)
V
DD
=
10V
250
500
ns
V
DD
=
15V
175
350
ns
t
PHL
Turn-On Delay Time
V
DD
=
5V
720
1440
ns
(Data) (Figure 1a) V
DD
=
10V
290
580
ns
V
DD
=
15V
195
400
ns
t
PLH
Turn-Off Delay Time
V
DD
=
5V
320
640
ns
(Blank) (Figure 1a)
V
DD
=
10V
130
260
ns
V
DD
=
15V
100
200
ns
t
PHL
Turn-On Delay Time
V
DD
=
5V
485
970
ns
(Blank) (Figure 1a) V
DD
=
10V
200
400
ns
V
DD
=
15V
160
320
ns
t
PLH
Turn-Off Delay Time
V
DD
=
5V
313
625
ns
(Lamp Test) (Figure 1a)
V
DD
=
10V
125
250
ns
V
DD
=
15V
90
180
ns
t
PHL
Turn-On Delay Time
V
DD
=
5V
313
625
ns
(Lamp Test) (Figure 1 a)
V
DD
=
10V
125
250
ns
V
DD
=
15V
90
180
ns
t
SETUP
Setup Time
V
DD
=
5V
180
90
ns
(Figure 1b)
V
DD
=
10V
76
38
ns
V
DD
=
15V
40
20
ns
t
HOLD
Hold Time
V
DD
=
5V
0
-
90
ns
(Figure 1b)
V
DD
=
10V
0
-
38
ns
V
DD
=
15V
0
-
20
ns
PW
LE
Minimum Latch Enable
V
DD
=
5V
520
260
ns
Pulse Width (Figure 1 c)
V
DD
=
10V
220
110
ns
V
DD
=
15V
130
65
ns
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