COP472N-3/NOPB National Semiconductor, COP472N-3/NOPB Datasheet

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COP472N-3/NOPB

Manufacturer Part Number
COP472N-3/NOPB
Description
IC LCD DISPLAY DRIVER 20-DIP
Manufacturer
National Semiconductor
Datasheet

Specifications of COP472N-3/NOPB

Display Type
LCD
Configuration
36 Segment
Interface
Serial
Digits Or Characters
4.5 Digits
Current - Supply
250µA
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
COP472N-3
C 1996 National Semiconductor Corporation
COP472-3 Liquid Crystal Display Controller
General Description
The COP472–3 Liquid Crystal Display (LCD) Controller is a
peripheral member of the COPS
CMOS technology The COP472-3 drives a multiplexed liq-
uid crystal display directly Data is loaded serially and is held
in internal latches The COP472-3 contains an on-chip oscil-
lator and generates all the multi-level waveforms for back-
planes and segment outputs on a triplex display One
COP472-3 can drive 36 segments multiplexed as 3 x 12
(4
gether to drive 72 segments (3 x 24) which could be an 8
digit display
Block Diagram
COPS
TM
digit display) Two COP472-3 devices can be used to-
and MICROWIRE
TM
are trademarks of National Semiconductor Corporation
TL DD 6932
TM
family fabricated using
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Direct interface to TRIPLEX LCD
Low power dissipation (100 W typ )
Low cost
Compatible with all COPS processors
Needs no refresh from processor
On-chip oscillator and latches
Expandable to longer displays
Operates from display voltage
MICROWIRE
20-pin Dual-In-Line package and 20-pin SO
RRD-B30M56 Printed in U S A
TM
compatible serial I O
http
www national com
TL DD 6932 – 1
July 1995

Related parts for COP472N-3/NOPB

COP472N-3/NOPB Summary of contents

Page 1

... Two COP472-3 devices can be used to- gether to drive 72 segments (3 x 24) which could digit display Block Diagram COPS TM and MICROWIRE TM are trademarks of National Semiconductor Corporation C 1996 National Semiconductor Corporation TL DD 6932 Features Direct interface to TRIPLEX LCD Y Low power dissipation (100 W typ ) Y ...

Page 2

Absolute Maximum Ratings Voltage pins Voltage at all other Pins b Operating Temperature Range DC Electrical Characteristics GND Parameter Power Supply Voltage V ...

Page 3

... Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Voltage Pins b Voltage at All Other Pins Operating Temperature Range b DC Electrical Characteristics GND Parameter Power Supply Voltage V DD Power Supply Current I ...

Page 4

... Dual-In-Line Package Top View Order Number COP472MW-3 or COP472N-3 See NS Package Number M20A or N20A FIGURE 4 Backplane and Segment Waveforms FIGURE 5 Typical Display Internal Connections http www national com Pin CS Chip select V Power supply (display voltage) DD GND Ground DI Serial data input SK Serial clock input ...

Page 5

Functional Description The COP472-3 drives 36 bits of display information orga- nized as twelve segments and three backplanes The COP472-3 requires 40 information bits 36 data and 4 con- trol The function of each control bit is described below Display ...

Page 6

LOADING SEQUENCE TO DRIVE A 4 -DIGIT DISPLAY Steps 1 Turn CE low 2 Clock in 8 bits of data for digit 1 3 Clock in 8 bits of data for digit 2 4 Clock in 8 bits of data ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Molded DIP (M) Order Number COP472MW-3 NS Package Number M20B 7 http www national com ...

Page 8

... National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications 20-Lead Molded DIP (N) Order Number COP472N-3 NS Package Number N20A 2 A critical component is any component of a life ...

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