W53300 Datasheet, PDF (7/9 Pages) Winbond – 16Voice/Melody/LCD Controller(View TalkTM Series)

W53300/W53320
TYPICAL APPLICATION CIRCUIT
VCC1
Output Signal
0.1 uF
VCC1
RXIN
32.768
KHz
VCC2
VDD
RA0
COM0
RA3
RB0
RB1
RB2
RB3
RC0
RC1
RC2
RC3
COM31
SEG0
SEG47
1 uF
DH1 ₊
DH2
VDD2
RD0
RD1
RD2
RD3
RES
VDD3
V6
V5
V4
V3
V2
LED2
XOUT
W53320
XIN
X32I
LED1
RE0
RE1
RE2
RE3
X32O
PWM1
PWM2
VDDP
VSS1 VSS2 ^ROSC
LCD (1/7 Bias
PANEL ^{1/32 Duty)}
32 COM *48 SEG
1 uF
+
1 uF
+
0.1 uF
0.1 uF
0.1 uF
0.1 uF
0.1 uF
VSS
VCC2
buzzer ^VCC1
or
speaker
ROSC
Note: 1.VCC2 supports high current driving capability to PWM1, PWM2, LED1 and LED2.
2.Triple pump, 1/7 bias
3. Two resistors could be added that one is V6~V5, and another V2~VSS for good display.
Publication Release Date: March 1999
-7-
Revision A2