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EM83040A Schematic ( PDF Datasheet ) - ELAN Microelectronics Corp

Teilenummer EM83040A
Beschreibung LCD CONTROLLER
Hersteller ELAN Microelectronics Corp
Logo ELAN Microelectronics Corp Logo 




Gesamt 16 Seiten
EM83040A Datasheet, Funktion
Preliminary
EM83040A
LCD CONTROLLER
GENERAL DESCRIPTION
The EM83040A 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 lcd waveform to LCD.
FEATURES
(1) Supply power 2.6~6V
(2) Internal RAM : 2.5k x 4 bits
(3) RAM can be controlled by eight signals including four bit data bus.
(4) LCD drive voltage :<13V
(5) Duty: 1/32, 1/48, 1/80
(6) Build in DC converter double and triple
(7) Modularized function: connect to another 83040 to extent LCD matrix
(8) One DC converter enabled and other 83040 can shared with this.
(9) Internal regulator output for DC converter controlled by control register. (2.5V to 4.6V, 8 level)
(10) Chip form (EM83040AH), 128 pin package (14mmx20mm EM83040AAQ), 160 pin package (EM83040ABQ)
(11) Bias : 1/5 for 32 common, 1/7 for 48 common, 1/9 for 80 common. Fixed by internal circuit.
(12) Internal RC clock about 250 KHz.
APPLICATION
(1) Data Bank
(2) LCD toy
(3) Education computer
PIN ASSIGNMENTS
VREG
EM83040ABQ
* This specification are subject to be changed without notice.
5.31.2001 1






EM83040A Datasheet, Funktion
(6) LCD waveform
Preliminary
EM83040A
LCD CONTROLLER
frame
com0
com1
com2
seg
dark
seg
light
V1
V2
V3
V4
V5
GND
V1
V2
V3
V4
V5
GND
V1
V2
V3
V4
V5
GND
V1
V2
V3
V4
V5
GND
V1
V2
V3
V4
V5
GND
* This specification are subject to be changed without notice.
5.31.2001 6

6 Page









EM83040A pdf, datenblatt
(4) C80 x S160
Preliminary
EM83040A
LCD CONTROLLER
VREG
VREG
Fig .13
VREG
* This specification are subject to be changed without notice.
5.31.2001 12

12 Page





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