UPD16686P View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD16686P

1/128 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM

NEC => Renesas Technology 

µPD16686, 16687

 BLOCK DIAGRAM

Data

register

TM,S

SIGIN1

SIGIN2

TSTIFS

TSTRTST

TSTVIHL

C86

PSX

/CS1

CS2

/RD(E)

/WR(R,/W)

D7(SI)

D6(SCL)

D5 to D0

RS

/RES

TESTOUT

OSCIN1

OSCIN2

OSCOUT

TOSCSYNC

CLS

C1+, C1 -

C9+, C9-

C1A

VOUT

I/O

buffer

Oscillator

DC/DC

converter

SEG1

SEG128

Segment driver

Segment

G/S and blink

control

Display data latch

Display data RAM

(128 x 128 x 2 bit)

Icon data RAM

(20 x 2 bit)

Address decoder

Command decoder

Register

Timing generator

D/A converter

COM1

COM128

PCOM1

Common driver

Pictograph common driver

Pictograph

segment

driver

Common

timing

generator

Pictograph

common

timing

generator

PSEG1

PSEG20

TFR

TFRSYNC

TDOF

TSISYNC

Segment

G/S and blink

timer

Op amp

LCD voltage generator

VRS IRS

VR AMPOUTP AMPOUT VLCD

VLC1

VLC2

VLC3

VLC4

VDD1 VDD2 VSS

Remark /xxx indicates active low signals.

2

Data Sheet S15548JJ1V0DS

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