W741L250 Datasheet, PDF (35/86 Pages) Winbond – 4-BIT MICROCONTROLLER

TYPICAL APPLICATION CIRCUIT
W741L250
Output Signal
or
Vcc
RA0
RA3
RB0
RB1
RB2
RB3
RC0
RC1
RC2
RC3
RD0
RD1
RD2
RD3
VDD
COM0
COM3
SEG0
SEG23
DH1
DH2
VDD1
VDD2
VDD3
INT
RES
XOUT
XIN
RE0
RE3
MFP
VSS
LCD
PANEL
(1/3 Bias
1/4 Duty)
Connect to capacitor and VDD
to generate LCD voltage
Vcc
Vcc
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Publication Release Date: March 1998
Revision A2