CD4511BCN - Fairchild Semiconductor

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

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 “0”VDD = 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 “1”VDD = 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

(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

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

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 −10−5−0.1 −1.0 µA

VDD = 15V, VIN = 15V 0.1 10−50.1 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

FAIRCHILD’S 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.