Datasheet
TC1602A-01T
Ver.V00 2009-09-23 www.tinsharp.com
- 14 -
DISPLAY DATA RAM (DD RAM)
The 80-bit DD RAM is normally used for storing display data. Those DD RAM not used for display data can be
used as general data RAM. Its address is configured in the Address Counter.
Timing Generation Circuit
The timing generating circuit is able to generate timing signals to the internal circuits. In order to prevent the
internal timing interface, the MPU access timing and the RAM access timing are generated independently.
LCD Driver Circuit
Total of 16 commons and 40 segments signal drivers are valid in the LCD driver circuit. When a program specifies
the character fonts and line numbers, the corresponding common signals output drive-waveforms and the others
still output unselected waveforms. The relationships between Display Data RAM Address and LCD′s position
are depicted as follows.
Character Generator ROM (CG ROM)
Using 8-bit character code, the character generator ROM generates 5 x 8 dots or 5 x 10 dots character patterns.
It also can generate 192’s 5 x 8 dots character patterns and 64’s 5 x 10 dots character patterns.
Character Generator RAM (CG RAM)
Users can easily change the character patterns in the character generator RAM through program. It can be
written to 5 x 8 dots, 8-character patterns or 5 x 10 dots for 4-character patterns.










