© 2004 Fairchild Semiconductor Corporation DS005991 www.fairchildsemi.com
October 1987
Revised January 2004
CD4511BC BCD-to-7 Segment Latch/Decoder/Dr iver
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 device s 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 eit her 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
Low logic circu it power dissi pa tion
High curren t sourcin g outp uts (up to 25 mA)
Latch storage of code
Blanking inp ut
Lamp test provi sion
Readout blanking on all illegal input combinations
Lamp intensity modulation capability
Time share (multiplexing) facility
Equivalent to Motorola MC14511
Ordering Code:
Connection Diagrams
Top View
Segment Identification
Order Number Package Number Package Description
CD4511BCWM M16B 16-Lead Small Outline Intergrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
CD4511BCN N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
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CD4511BC
Truth Table
X = Don’t Care
*Depends upon the BCD code applied during the 0 to 1 transition of LE.
Display
Inputs Outputs
LE BI LT DCBAabcde f gDisplay
XX0 XXXX11 11111 B
X01XX XX0000 000
011000 011111 10 0
0 110001 011000 0 1
01 100101 101101 2
011 001111 11001 3
01101 000110 011 4
011010 110110 11 5
0 110110 001111 1 6
01 101111 110000 7
011 100011 11111 8
01110 011110 011 9
011101 000000 00
0 111011 000000 0
01 111000 000000
0111 101000 0000
011111 000000 00
0 111111 000000 0
11 1XXXX * *
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CD4511BC
Absolute Maximum Ratings(Note 1) Recommended Operating
Conditions
Note 1: Devices should not be connected with power on.
DC Electrical Characteristics
DC Supply Voltage (VDD)0.5V to +18V
Input Voltage (VIN)0.5V to VDD +0.5V
Storage Temperature Range (TS)65°C to +150°C
Power Dissipation (PD)
Dual-In-Line 700 mW
Small Outline 500 mW
Lead Temperature (TL)
(Soldering, 10 seconds) 260°C
DC Supply Voltage (VDD) 3V to 15V
Input Voltage (VIN)0V to V
DD
Operating Temperature Range (TA)55°C to +125°C
Symbol Parameter Conditions 55°C +25°C+125°CUnits
Min Max Min Typ Max Min Max
IDD Quiescent VDD = 5V 5 5 150 µASupply Curre nt VDD = 10V 10 10 300
VDD = 15V 20 20 600
VOL Output Voltage VDD = 5V 0.01 0 0.01 0.05 VLogical 0VDD = 10V 0.01 0 0.01 0.05
Level VDD = 15V 0.01 0 0.01 0.05
VOH Output Voltage VDD = 5V 4.1 4.1 4.57 4.1 VLogical 1VDD = 10V 9.1 9.1 9.58 9.1
Level VDD = 15V 14.1 14.1 14.59 14.1
VIL LOW Level VDD = 5V, VOUT = 3.8V or 0.5V 1.5 2 1.5 1.5 VInput Voltage VDD = 10V, VOUT = 8.8V or 1.0V 3.0 4 3.0 3.0
VDD = 15V, VOUT = 13.8V or 1.5V 4.0 6 4.0 4.0
VIH HIGH Level VDD = 5V, VOUT = 0.5V or 3.8V 3.5 3.5 3 3.5 VInput Voltage VDD = 10V, VOUT = 1.0V or 8.8V 7.0 7.0 6 7.0
VDD = 15V, V OUT = 1.5V or 13.8V 11.0 11.0 9 11.0
VOH Output VDD = 5V, IOH = 0 mA 4.1 4.1 4.57 4.1
V
(Source) Drive VDD = 5V, IOH = 5 mA 4.24
Voltage VDD = 5V, IOH = 10 mA 3.9 3.9 4.12 3.5
VDD = 5V, IOH = 15 mA 3.94
VDD = 5V, IOH = 20 mA 3.4 3.4 3.75 3.0
VDD = 5V, IOH = 25 mA 3. 54
VDD = 10V, IOH = 0 mA 9.1 9.1 9.58 9.1
V
VDD = 10V, IOH = 5 mA 9.26
VDD = 10V, IOH = 10 mA 9.0 9.0 9.17 8.6
VDD = 10V, I OH = 15 mA 9.04
VDD = 10V, IOH = 20 mA 8.6 8.6 8.9 8.2
VDD = 10V, IOH = 25 mA 8.75
VDD = 15V, IOH = 0 mA 14.1 14.1 9.58 14.1
V
VDD = 15V, I OH = 5 mA 14.27
VDD = 15V, IOH = 10 mA 14.0 14.0 14.17 13.6
VDD = 15V, IOH = 15 mA 14.07
VDD = 15V, IOH = 20 mA 13.6 13.6 13.95 13.2
VDD = 15V, I OH = 25 mA 13.80
IOL LOW Level VDD = 5V, VOL = 0.4V 0.64 0.51 0.88 0.36 mAOutput Current VDD = 10V, VOL = 0.5V 1.6 1.3 2.25 0.9
VDD = 15V, VOL = 1.5V 4.2 3.4 8.8 2.4
IIN Input Current VDD = 15V, VIN = 0V 0.1 1050.1 1.0 µA
VDD = 15V, VIN = 15V 0.1 1050.1 1.0
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CD4511BC
AC Electrical Characteristics (Note 2)
TA = 25°C and CL = 50 pF, typical temperature coefficient for all values of VDD = 0.3%/°C
Note 2: AC Parameters are guara nt eed by DC c orrelat ed testing.
Symbol Parameter Conditions Min Typ Max Units
CIN Input Capacitance VIN = 05.07.5pF
trOutput Rise Time VDD = 5V 40 80 ns(Figure 1a) VDD = 10V 30 60
VDD = 15V 25 50
tfOutput Fall Time VDD = 5V 125 250 ns(Figure 1a)V
DD = 10V 75 150
VDD = 15V 65 130
tPLH Turn-Off Delay Time VDD = 5V 640 1280 ns(Data) (Figure 1a)V
DD = 10V 250 500
VDD = 15V 175 350
tPHL Turn-On Delay Time VDD = 5V 720 1440 ns(Data) (Figure 1a) VDD = 10V 290 580
VDD = 15V 195 400
tPLH Turn-Off Delay Time VDD = 5V 320 640 ns(Blank) (Figure 1a)V
DD = 10V 130 260
VDD = 15V 100 200
tPHL Turn-On Delay Time VDD = 5V 485 970 ns(Blank) (Figure 1a) VDD = 10V 200 400
VDD = 15V 160 320
tPLH Turn-Off Delay Time VDD = 5V 313 625 ns(Lamp Test) (Figure 1a)V
DD = 10V 125 250
VDD = 15V 90 180
tPHL Turn-On Delay Time VDD = 5V 313 625 ns(Lamp Test) (Figure 1 a)V
DD = 10V 125 250
VDD = 15V 90 180
tSETUP Setup Time VDD = 5V 180 90 ns(Figure 1b)V
DD = 10V 76 38
VDD = 15V 40 20
tHOLD Hold Time VDD = 5V 0 90 ns(Figure 1b)V
DD = 10V 0 38
VDD = 15V 0 20
PWLE Minimum Latch Enable VDD = 5V 520 260 nsPulse Width (Figure 1 c)V
DD = 10V 220 110
VDD = 15V 130 65
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CD4511BC
Switching Time Waveforms
FIGURE 1.
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CD4511BC
Typical Applications
Light Emitting Diode (LED) Readou t
Gas Discharge Readout Liquid Crystal (LC) Readout
Direct DC drive of LC s no t re c om m ended for li fe of LC readouts .
Incand es cen t R ead o ut
**A fila ment pre-w arm resis tor is reco mmende d to reduc e filament thermal
shock and increase the effective cold resistance of the filament.
Fluorescent Re adout
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CD4511BC
Physical Dimensions inches (millimeters) unless otherwise noted
16-Lead Small Outline Intergrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
Package Number M16B
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CD4511BC BCD-to-7 Segment Latch/Decoder/Driver
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 assu me any responsibility for use of any circuitry de scribed, 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
FAIRCHILDS 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 suppor t de vices o r syste ms are devices or syste ms
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 compon ent i n any compon ent of a lif e supp ort
device or system whose failure to perform can be rea-
sonabl y ex pect ed to ca use the fa ilu re of the li fe su pp ort
device or system, or to affect its safety or effectiveness.
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