T6K04
2001-03-13 22/30
●
Expansion function
The T6K04 has expansion function, when using this function, the T6K04 (2 chips) can drive 256 × 64 dots
LCD panel (maximum).
Next table shows the selectable function by using M / S, EXP pins.
M / S
“H” “L”
“H”
●
Two chips mode (Enable expansion mode)
●
Master chip
COM1~COM64
are
available.
●
Two chips mode (Enable expansion mode)
●
Slave chip
●
COM1~COM64 are available.
●
Timing signals and power voltage are supplied
from Master Chip.
EXP
“L”
●
One chip mode (Disable expansion mode)
●
COM1~COM64 are available.
●
Do not select
Fig.
1
3
−1
and
−
2 illustrate the application example of Disable expansion mode and enable expansion mode.
In Enable Expansion Mode (Two chips mode)
As shown in Fig.
1
3
−
2, Fig.
1
4 Master chip supplies LCD drive signals and power voltage to Slave chip (The
Oscillator, the timing circuits, Op
−
Amp. and Contrast control circuit are disabled)
(
1
) Disable expansion
Fig.
1
3
−1
