Document
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 output drivers in a single monolithic structure The circuit provides the functions of a 4-bit storage latch an 8421 BCD-toseven 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
Y Y Y Y Y Y Y Y Y
Low logic circuit power dissipation High current sourcing outputs (up to 25 mA) Latch storage of code Blanking input Lamp test provision Readout blanking on all illegal input combinations Lamp intensity modulation capability Time share (multiplexing) facility Equivalent to Motorola MC14511
Connection Diagram
Dual-In-Line Package
Truth Table
Inputs X X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 X 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 X X 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 X X X 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 X X X 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 X X X 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 X 1 0 1 0 1 1 0 1 0 1 1 1 0 0 0 0 0 0 1 0 1 1 1 1 1 0 0 1 1 1 0 0 0 0 0 0 1 0 1 1 0 1 1 1 1 1 1 1 0 0 0 0 0 0 1 0 1 0 1 1 0 1 1 0 1 0 0 0 0 0 0 0 Outputs 1 0 1 0 1 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 1 1 1 0 1 1 0 0 0 0 0 0 1 0 0 0 1 1 1 1 1 0 1 1 0 0 0 0 0 0 B 0 1 2 3 4 5 6 7 8 9 LE BI LT D C B A a b c d e f g Display
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
C1995 National Semiconductor Corporation
TL F 5991
RRD-B30M105 Printed in U S A
Absolute Maximum Ratings (Notes 1
2)
If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications DC Supply Voltage (VDD) Input Voltage (VIN) Storage Temperature Range (TS) Power Dissipation (PD) Dual-In-Line Small Outline Lead Temperature (TL) (Soldering 10 seconds)
b 0 5V to a 18V b 0 5V to VDD a 0 5V b 65 C to a 150 C
Recommended Operating Conditions (Note 2)
DC Supply Voltage (VDD) Input Voltage (VIN) Operating Temperature Range (TA) CD4510BM CD4516BM CD4510BC CD4516BC 3V to 15V 0V to VDD
b 55 C to a 125 C b 40 C to a 85 C
700 mW 500 mW 260 C
DC Electrical Characteristics CD4511BM
Symbol IDD Parameter Quiescent Supply Current Output Voltage Logical ‘‘0’’ Level Output Voltage Logical ‘‘1’’ Level Low Level Input Voltage High Level Input Voltage Output (Source) Drive Voltage Conditions VDD e 5V VIN e VDD or VSS VDD e 10V VIN e VDD or VSS VDD e 15V VIN e VDD or VSS VDD e 5V VDD e 10V VDD e 15V VDD e 5V VDD e 10V VDD e 15V VDD e 5V VOUT e 3 8V or 0 5V VDD e 10V VOUT e 8 8V or 1 0V VDD e 15V VOUT e 13 8V or 1 5V VDD e 5V VOUT e 0 5V or 3 8V VDD e 10V VOUT e 1 0V or 8 8V VDD e 15V VOUT e 1 5V or 13 8V VDD VDD VDD VDD VDD VDD VDD VDD VDD VDD VDD VDD VDD VDD VDD VDD VDD VDD IOL Low Level Output Current Input Current
e e e e e e e e e e e e e e e e e e b 55 C a 25 C a 125 C
Units mA mA mA V V V V V V
Min
Max 5 10 20 0 01 0 01 0 01
Min
Typ
Max 5 10 20
Min
Max 150 300 600 0 05 0 05 0 05
VOL
0 0 0 41 91 14 1 4 57 9 58 14 59 2 4 6 35 70 11 0 41 39 34 91 90 86 14 1 14 0 13 6 0 51 13 34 3 6 9 4 57 4 24 4 12 3 94 3 75 3 54 9 58 9 26 9 17 9 04 89 8 75 9 58 14 27 14 17 14 07 13 95 13 8 0 88 2 25 88
b 10 b 5
0 01 0 01 0 01 41 91 14 1 15 30 40 35 70 11 0 41 35 30 91 86 82 14 1 13 6 13 2 0 36 09 24
b 0 10
VOH
41 91 14 1 15 30 40 35 70 11 0 41 39 34 91 90 86 14 1 14 0 13 6 0 64 16 42
b 0 10
VIL
15 30 40
V V V V V V V V V V V V V V V V V V V V V V V V mA mA mA
VIH
VOH
5V 5V 5V 5V 5V 5V
IOH IOH IOH IOH IOH IOH
e e e e e e
0 mA 5 mA 10 mA 15 mA 20 mA 25 mA 0 mA 5 mA 10 mA 15 mA 20 mA 25 mA 0 mA 5 mA 10 mA 15 mA 20 mA 25 mA
10V 10V 10V 10V 10V 10V 15V 15V 15V 15V 15V 15V
IOH IOH IOH IOH IOH IOH IOH IOH IOH IOH IOH IOH
e e e e e e e e e e e e
VDD e 5V VOL e 0 4V VDD e 10V VOL e 0 5V VDD e 15V VOL e 1 5V VDD e 15V VIN e 0V VDD e 15V VIN e 15V
IIN
b1 0
0 10
10b5
0 10
10
mA mA
Note 1 Devices should not be connected with power on
2
DC Electrical Characteristics CD4511BC
Symbol IDD Parameter Quiescent Supply Current Output Voltage Logical ‘‘0’’ Level Output Voltage Logical ‘‘1’’ Level Low Level Input Voltage High Level Input Voltage Output (Source) Drive Voltage VDD e 5V VDD e 10V VDD e 15V VDD e 5V VDD e 10V VDD e 15V V.