RW1068 ETC-unknow, RW1068 Datasheet - Page 19

• Manufacturer Part Number: RW1068
• Description: 26com/84seg Driver & Controller For Dot Matrix Lcd
• Manufacturer: ETC-unknow

Timing generation circuit generates clock signals for the internal operations.
Address Counter (AC) stores DDRAM/CGRAM/SEGRAM address, transferred from IR.
After writing into (reading from) DDRAM/CGRAM/SEGRAM, AC is automatically increased
(decreased) by 1.
When RS = "Low" and R/W = "High", AC can be read through DB0-DB6
It controls cursor/blink ON/OFF and black/white inversion at cursor position.
LCD Driver circuit has 26 common and 84 segment signals for LCD driving.
Data from SEGRAM/CGRAM/CGROM is transferred to 84 bit segment latch serially,
and then it is stored to 84 bit shift latch. When each COM is selected by 26 bit common register,
segment data also output through segment driver from 84 bit segment latch.
In case of 2 line (6 dots width) display mode, COM0-COM25 have 1/25 duty.
TIMING GENERATION CIRCUIT
ADDRESS COUNTER (AC)
CURSOR/BLINK CONTROL CIRCUIT
LCD DRIVER CIRCUIT
26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
RockWorks Technology Corp.
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RW1068