MC14511BCP View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

View to exact match

MC14511BCP

BCD−To−Seven Segment Latch/Decoder/Driver

Motorola => Freescale 

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

MC14511B

BCD-To-Seven Segment

Latch/Decoder/Driver

The MC14511B 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–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.

• 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

• Supply Voltage Range = 3.0 V to 18 V

• Capable of Driving Two Low–power TTL Loads, One Low–power

Schottky TTL Load or Two HTL Loads Over the Rated Temperature

Range

• Chip Complexity: 216 FETs or 54 Equivalent Gates

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ • Triple Diode Protection on all Inputs

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ MAXIMUM RATINGS* (Voltages Referenced to VSS)

Rating

Symbol

Value

Unit

DC Supply Voltage

Input Voltage, All Inputs

DC Current Drain per Input Pin

VDD

Vin

I

– 0.5 to + 18

V

– 0.5 to VDD + 0.5 V

10

mA

L SUFFIX

CERAMIC

CASE 620

P SUFFIX

PLASTIC

CASE 648

D SUFFIX

SOIC

CASE 751B

DW SUFFIX

SOIC

CASE 751G

ORDERING INFORMATION

MC14XXXBCP

MC14XXXBCL

MC14XXXBDW

MC14XXXBD

Plastic

Ceramic

SOIC

SOIC

TA = – 55° to 125°C for all packages.

PIN ASSIGNMENT

B1

C2

LT 3

BI 4

LE 5

D6

A7

16 VDD

15 f

14 g

13 a

12 b

11 c

a

f gb

e

c

d

10 d

VSS 8

9e

DISPLAY

Operating Temperature Range

Power Dissipation per Package†

Storage Temperature Range

Maximum Output Drive Current

(Source) per Output

TA

– 55 to + 125

_C

PD

500

mW

Tstg

– 65 to + 150

_C

IOHmax

25

mA

Maximum Continuous Output Power

POHmax

50

mW

(Source) per Output ‡

‡POHmax = IOH (VDD – VOH)

* Maximum Ratings are those values beyond which damage to the device may occur.

†Temperature Derating:

Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C

Ceramic “L” Packages: – 12 mW/_C From 100_C To 125_C

012 345 6789

TRUTH TABLE

Inputs

Outputs

LE BI LT D C B A a b c d e f

XX0 X X X X 1 1 1 1 1 1

X01 X X X X 0 0 0 0 0 0

011 0 0 0 0 1 1 1 1 1 1

011 0 0 0 1 0 1 1 0 0 0

011 0 0 1 1 1 1 1 1 0 0

011 0 0 1 1 1 1 1 1 0 0

011 0 1 0 0 0 1 1 0 0 1

011 0 1 0 1 1 0 1 1 0 1

011 0 1 1 0 0 0 1 1 1 1

011 0 1 1 1 1 1 1 0 0 0

011 1 0 0 0 1 1 1 1 1 1

011 1 0 0 1 1 1 1 0 0 1

011 1 0 1 0 0 0 0 0 0 0

011 1 0 1 1 0 0 0 0 0 0

011 1 1 0 0 0 0 0 0 0 0

011 1 1 0 1 0 0 0 0 0 0

011 1 1 1 0 0 0 0 0 0 0

011 1 1 1 1 0 0 0 0 0 0

111 X X X X

*

X = Don’t Care

*āDepends upon the BCD code previously applied when LE = 0

g Display

1

8

0 Blank

0

0

0

1

1

2

1

3

1

4

1

5

1

6

0

7

1

8

1

9

0 Blank

0 Blank

0 Blank

0 Blank

0 Blank

0 Blank

*

REV 3

1/94

©MMOotoTrOolaR, IOncL. A199C5MOS LOGIC DATA

MC14511B

361

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