EM83040B
LCD CONTROLLER
minary
Preli
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
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Supply power: 2.5~5.5V
LCD drive voltage: 3.6 to15V
Internal RAM: 2.5k x 4 bits
RAM can be controlled by eight signals including four bits data bus.
Duty: 1/32, 1/48, 1/64, 1/80
Build in DC/DC converter: double, triple, quad and five times.
Modularized function: connect to another 83040B to extent LCD matrix
One DC converter enabled and other 83040B can share with this.
Internal regulator output for DC/DC converter controlled by control register.
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
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Data Bank
LCD toy
Education computer
* This specification are subject to be changed without notice.
9.14.2001
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EMC [ ELAN MICROELECTRONICS CORP ]
