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Part Name
Description
UPD16498 View Datasheet(PDF) - NEC => Renesas Technology
Part Name
Description
Manufacturer
UPD16498
1/128 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM
NEC => Renesas Technology
UPD16498 Datasheet PDF : 95 Pages
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PD16498
1. BLOCK DIAGRAM
SEG
1
Data
register
SEG
128
COM
1
COM
128
PCOM
1
PCOM
2
Segment driver
Common driver
Pictograph common driver
/RES
/CS1
CS2
C86
PSX
RDS
/RD(E)
/WR(R,/W)
P
7
(SI)
P
6
(SCL)
P
5
to P
0
RS
IRS
TM/S
TFR
TFR
SYNC
TDOF
TSI
SYNC
SIGIN1
SIGIN2
TSTIFS
TSTRTST
TSTVIHL
TEST
OUT
OSC
IN1
OSC
IN2
OSC
OUT
TOSC
SYNC
CLS
C1
+
, C1-
C9
+
,
C9-
C1A
I/O
buffer
Segment
G/S and blink
control
Display data latch
Display data RAM
(128 x 128 x 2 bits)
Icon data RAM
(20 x 2 bits)
Address decoder
Command decoder
Register
Oscillator
circuit
Timing generator
D/A converter
DC/DC
converter
Op amp
Common
timing
generator
Pictograph
segment
driver
Pictograph
common
timing
generator
PSEG
1
PSEG
20
Segment
G/S and blink
timer
LCD voltage generator
V
OUT
V
RS
IRS V
R
AMP
OUTP
AMP
OUT
V
LCD
V
LC1
V
LC2
V
LC3
V
LC4
V
DD1
V
DD2
V
SS
Remark
/xxx indicates active low signals.
Data Sheet S15730EJ2V0DS
5
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