UPD16681W-011 datasheet(2/56 Pages) NEC

Part #	UPD16681W-011

Description	LCD CONTROLLER/DRIVER FOR DOT MATRIX DISPLAY OF JIS LEVEL 1 AND JIS LEVEL 2 KANJI SETS

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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Data Sheet S13104EJ5V0DS00

2

µµµµPD16681

1. BLOCK DIAGRAM

I/O

Buffer

RAM Data

Register

Index

Register

Control

Register

RAM Address

Counter

Display Data RAM

Timing Generator

Pictograph

Data RAM

Character

Generator

RAM

Full-width

Character

Generator

ROM

Half-width

Character

Generator

ROM

Address Formation Circuit

Display Attribute Control Circuit

Cursor Control

Circuit

Parallel/Serial Conversion Circuit

Smooth Scroll Control Circuit

96 bits

Shift

Register

96 bits

Latch

Circuit

Segment

Driver

Oscillation Circuit

Common

Driver

66

12

6

8

7

8

4

8

3

DC/DC

Converter

OP Amp.

D/A

Converter

LCD Voltage Generator

6

8

VLC1

VLC2

C1 , C1

STB

WS

E/SCK

TESTOUT

/RESET

SEGINV

COMINV

COM1 to COM51

PCOM1,PCOM2

OSCIN

OSCOUT

OSCBRI

C2 , C2

C3 , C3

VEXT

SEG1 to SEG96

AMPIN(+)

AMPIN(−)

AMPOUT

AMPCHA

VLCBS1

VLC3

VLCBS2

VLCBS3

VLC4

VLC5

VDD

VSS

D0/DATA

D1 to D7

+

−

+

−

VLCD

DACHA

Remark

/xxx indicates active low signals.

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UPD16681W-011 Datasheet(PDF) 2 Page - NEC

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