W91510DN Datasheet, PDF (5/30 Pages) Winbond – TONE/PULSE DIALER WITH RTC AND LCD DISPLAY FUNCTION

Preliminary W91510DN SERIES
Pin Description, continued
SYMBOL PIN NO.
COM1 to
COM4
33−36
SEG1 to
SEG32
37−64, 1−4
XT2, XT2
26, 27
VRTC1,
VRTC2
VDD, VSS
MODE
28, 30
5, 7
12
I/O
FUNCTION
O COM1 to COM4 are the common signal output terminal for the
1/4 duty LCD.
O SEG1 to SEG32 are the 16-digit segment signal outputs.
I, A quartz crystal oscillator provides an RTC frequency time base
O of 32.768 KHz.
I Either VRTC1 should be connected to a 1.5V battery, and
VRTC2 should be connected a capacitor 0.1 µF to ground.
I Power input pins.
I Pulling mode pin to VSS places the dialer in tone mode.
Pulling mode pin to VDD places the dialer in pulse mode (10
ppS, M/B = 1/2).
Leaving mode pin floating places the dialer in pulse mode (10
ppS, M/B = 2/3).
BLOCK DIAGRAM
VDD VSS
XT2
XT2
REAL TIME CLOCK
GENERATOR
XT1
XT1
SYSTEM CLOCK
GENERATOR
ROW
(R1 ~ R4)
COLUMN
(C1 ~ C5)
KEYBOARD
INTERFACE
READ/WRITE
COUNTER
LOCATION
LATCH
RAM
CONTROL
LOGIC
PULSE/
TONE
CONTROL
LOGIC
DTMF
VLCD
VRTC1
VRTC2
D/A
CONVERTER
ROW & COLUMN
PROGRAMMABLE
COUNTER
DATA LATCH
& DECODER
BACKPLANE SIGNAL
GENERATOR
SEGMENT OUTPUT
DECODER
CP CN
COM1 COM2 COM3 COM4
L.C.D.
HKS
HFI
LOCK
MODE
H/P MUTE
T/P MUTE
DP
HFO
Publication Release Date: May 1997
-5-
Revision A2