EM83040A

EM83040A LCD CONTROLLER inary m i l e r P 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) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) Supply power 2.6~6V Internal RAM : 2.5k x 4 bits RAM can be controlled by eight signals including four bit data bus. LCD drive voltage :<13V Duty: 1/32, 1/48, 1/80 Build in DC converter double and triple Modularized function: connect to another 83040 to extent LCD matrix One DC converter enabled and other 83040 can shared with this. Internal regulator output for DC converter controlled by control register. (2.5V to 4.6V, 8 level) Chip form (EM83040AH), 128 pin package (14mmx20mm EM83040AAQ), 160 pin package (EM83040ABQ) Bias : 1/5 for 32 common, 1/7 for 48 common, 1/9 for 80 common. Fixed by internal circuit. Internal RC clock about 250 KHz. APPLICATION (1) (2) (3) Data Bank LCD toy Education computer PIN ASSIGNMENTS VREG EM83040ABQ * This specification are subject to be changed without notice. 5.31.2001 1 EM83040A LCD CONTROLLER inary m i l e r P O79 MAIN NC NC NC NC NC M1 VREG M0 EN RAMEN RAMADS RAMW RAMR RAMD3 RAMD2 RAMD1 RAMD0 LOAD VDD CA CB GND VSS2 VSS3 V1 V2 V3 V4 NC NC NC NC NC NC V5 O0 128 127 126 125 124 123 122 121 120 119 118 117 116 115 11...