Preliminary W91560DN SERIES
Pin Description, continued
SYM.
PIN NO.
CP, CN
31, 32
COM1 to
COM4
SEG1 to
SEG32
XT2,
XT2
VRTC1,
VRTC2
VDD, VSS
33−36
37−64
1−4
26, 27
28, 30
5, 7
I/O
FUNCTION
I CP is the voltage control capacitor positive pin.
CN is the voltage control capacitor negative pin.
A 0.1 µF capacitor is connected between these two pins.
O COM1 to COM4 are the common signal output terminals for the
1/4 duty LCD.
O SEG1 to SEG32 are the 16-digit segment signal outputs.
I, O A quartz crystal oscillator provides an RTC frequency time base
of 32.768 KHz.
I Either VRTC1 should be connected to a 1.5V battery and VRTC2
should be connected to a capacitor 0.1 µF, which supplies the
power source for the RTC.
I Power input pins.
Publication Release Date: May 1997
-5-
Revision A2