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