¡ Semiconductor
ML9040-Axx/-Bxx
PIN DESCRIPTIONS
Symbol
Description
R/W
Read/write selection input pin.
"H" : Read, and "L" : Write
RS
Register selection input pin.
"H" : Data register, and "L" : Instruction register
E
Input pin for data input/output with CPU and for instruction register activation.
Input/output pins for data send/receive with CPU
DB0 - DB7
OSC1, OSC2
Clock oscillating pins required for internal operation upon receipt of the LCD drive signal
and CPU instruction.
COM1 - COM16
SEG1 - SEG40
DO
LCD COMMON signal output pins.
LCD SEGMENT signal output pins.
Output pin to be connected to MSM5259 to expand the number of characters to be
displayed.
CP
Clock output pin used when DO pin data output shifts inside of MSM5259.
Clock output pin for the serially transferred data to be latched to MSM5259.
The alternating current signal (Display Frequency) output pin.
Power supply pin.
L
DF
VDD
GND
Ground pin.
V1, V2, V3, V4, V5
Bias voltage input pins to drive the LCD.
5
OKI [ OKI ELECTRONIC COMPONETS ]
