EM83040BH Ver la hoja de datos (PDF) - ELAN Microelectronics

Número de pieza

componentes Descripción

Fabricante

EM83040BH

LCD CONTROLLER

ELAN Microelectronics 

PIN DESCRIPTIONS

Symbol

I/O

VDD

GND

VOUT

Power

Power

Power

VSS4

VSS3

VSS2+

VSS2-

VREG

MAIN

Power

Power

Power

Power

Power

I

EN

I

M1

I

M0

I

RAMEN

RAMADS

RAMW

RAMR

RAMD3~RAM

D0

LOAD

I/O

CA

I

CB

I

V1~V5

I

O1~O80

O

Preliminary

EM83040B

LCD CONTROLLER

Function

System power supply

Ground

Voltage converter input/output pin

Connect this pin to GND through capacitor

EN=1,VOUT=VDD

Step-up capacitor

EN=1, VSS4=VDD

Step-up capacitor

EN=1, VSS3=VDD

Step-up capacitor

EN=1, VSS2=VDD

Step-up capacitor

Output voltage regulator terminal. Provides the voltage between V1 and GND

through a resistive voltage divider.

Master or slave control signal.

MAIN=1, master unit

MAIN=0, slave unit

This pin control whole chip power. This chip will work when this pin is connected

to ground. And whole chip will disable when connect to VDD voltage.

EN=0 and MAIN=1 the chip will generate VSS2+, VSS2-

VSS3, VSS4, VOUT, LOAD signal and internal RC clock.

EN=1, standby mode

Mode select

Mode select

RAM read and write control signal.

1 => can not read and write. 0=> can read and write.

RAM data select signal

1=> RAM Data, 0=>Address

RAM write signal, low write

RAM read signal, low read

RAM data or address bus

LCD load signal between one COMMON signal to another.

MAIN=1, the master unit will output LOAD signal.

MAIN=0, the slave will accept the signal from master unit.

Coupling capacitor

Coupling capacitor

Reference voltage input, highest V1°K lowest V5

LCD waveform output

* This specification are subject to be changed without notice.

9.14.2001 5

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