EM83040B Datasheet PDF - ELAN Microelectronics Corp
| Part Number | EM83040B | |
| Description | LCD CONTROLLER | |
| Manufacturers | ELAN Microelectronics Corp | |
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Preliminary
EM83040B
LCD CONTROLLER
GENERAL DESCRIPTION
The EM83040B is a dot matrix LCD driver, which is fabricated by low power CMOS technology. This chip
includes 80-bits shift register, 80 bits data latch and 80 bits level driver. A LCD RAM inside can be mapping
to LCD signal. It converts RAM data to parallel data and output waveform to LCD.
FEATURES
(1) Supply power: 2.5~5.5V
(2) LCD drive voltage: 3.6 to15V
(3) Internal RAM: 2.5k x 4 bits
(4) RAM can be controlled by eight signals including four bits data bus.
(5) Duty: 1/32, 1/48, 1/64, 1/80
(6) Build in DC/DC converter: double, triple, quad and five times.
(7) Modularized function: connect to another 83040B to extent LCD matrix
(8) One DC converter enabled and other 83040B can share with this.
(9) Internal regulator output for DC/DC converter controlled by control register.
(10) Chip form (EM83040BH), 128 pin package (14mm x 20mm EM83040BAQ), 160 pin package
(EM83040BBQ)
(11) Bias: 1/5 (32 COMMON), 1/7 (48 COMMON), 1/9 (64 and 80 COMMON) fixed by internal circuit.
(12) Internal RC clock about 250 KHz.
APPLICATION
(1) Data Bank
(2) LCD toy
(3) Education computer
* This specification are subject to be changed without notice.
9.14.2001 1
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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
M0
RAMEN
RAMADS
RAMW
RAMR
RAMD3~RAM
D0
LOAD
I
I
I/O
CA
CB
V1~V5
O1~O80
I
I
I
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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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for EM83040B electronic component. |
| Information | Total 22 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ EM83040B.PDF Datasheet ] | |
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