SN6A509
LCD Controller with Voice/Dual Tone Melody
PIN ASSIGNMENT
Symbol
I/O
SEG1 ~ SEG56 O
SEG57/P53 ~ O
SEG60/P50
SEG61/P43 ~
O
SEG64/P40
COM1-COM16 O
GND
I
P33-P30
I/O
P23-P20
I/O
BU1,BU2
O
VO
O
RST
I
OSC
I
TEST
I
XIN,XOUT
VDD
I
VLCDR
VLC1-VLC4
WSUB
I
Function Description
Segment1~ 56 for LCD driver
Optional to be Segment57 ~ 60 or P53-P50
Seg57-60: segment57 ~ 60 for LCD driver.
P53-P50: bit3-bit0 for output port 5.
Optional to be segment61 ~ 64 or P43-P40
SEG61-64: segment61 ~ 64 for LCD driver.
P43-P40: Bit3-bit0 for output port 4.
Com1-Com16 for LCD driver.
Negative power supply.
Bit 3 to bit 0 of IO port 3.
Bit 3 to bit 0 of IO port 2.
Buzzer driver outputs.
D/A current output.
Reset pin with internal pull low.
Oscillation component connection pin.
For testing only.
32768 Hz Crystal connection pins.
Positive power supply.
LCD voltage adjusting pin.
LCD voltage bias connection pins.
Well substrate of chip. Connected to the
highest voltage of chip (VDD or VLCDR).
2
February 1, 2001