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UPD16662 Datasheet(PDF) 2 Page - NEC

Part No. UPD16662
Description  240 OUTPUT LCD COLUMN SEGMENT DRIVER WITH BUILT-IN RAM
Download  36 Pages
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Maker  NEC [NEC]
Homepage  http://www.nec.com/
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UPD16662 Datasheet(HTML) 2 Page - NEC

 
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2
µµµµPD16662
Pin name
Classification
Voltage
Pin Name
Note
I/O
Function
CPU I/F
3.3 V
D0 to D15
A0 to A16
/CS
/OE
/WE
/UBE
RDY
I/O
I
I
I
I
I
O
Data bus 16
Address bus 17
Chip select
Read signal
Write signal
High byte enable
Ready signal to CPU (Ready state at H)
Control signals
3.3 V
PL0
PL1
DIR
MS
BMODE
/REFRH
TEST
/RESET
/DOFF
OSC1
OSC2
I
I
I
I
I
I/O
I
I
I
-
-
Specifies the LSI allocation locations (No. 0 to 3).
Specifies the LSI allocation locations (No. 0 to 3).
Specifies the liquid-crystal panel allocation direction
(longitudinal; lateral)
Master/slave switching (Master mode at H)
Data bus bit select pin ("H" = 8bit, "L" = 16bit)
Self diagnostic reset pin (Wired OR connection)
Test pin (Test mode at H, using the pull-down buffer)
Reset
Display OFF signal input
Oscillator pin
Oscillator pin
5.0 V
STB
/FRM
PULSE
L1
L2
/DOUT
I/O
I/O
I/O
I/O
I/O
O
Column driving signal strobe
(MS signal "H" = output, MS signal "L" = input )
Frame signal(MS pin "H" = output , MS pin "L" = input )
25-gray level pulse modulation clock
Row driver drive level selection signal (1st line)
Row driver drive level selection signal (2nd line)
Display OFF signal output
Liquid-crystal drive
Y1 to Y240
O
Liquid-crystal drive output
Powers
GND
VCC1
VCC2
V0
V1
V2
-
-
-
-
-
-
Ground (two 5-V pins; three 3-V pins)
5-V power level
3.3-V power level
Liquid-crystal drive analog power
Liquid-crystal drive analog power
Liquid-crystal drive analog power
Remark /xxx indicates active low signal.
Note 3.3-V power pins : D0 - D15, A0 - A16, /CS, /OE, /WE, /UBE, RDY, BMODE, PL0, PL1, DIR, OSC1,
OSC2, /RESET, /DOFF, TEST, MS
5-V power pins
: STB, /FRM, L1, L2, /DOUT, PULSE


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