HD66730 Datasheet, PDF (15/131 Pages) Hitachi Semiconductor – Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display

HD66730/HD66731
Table 2 Pin Functional Description (cont. HD66731)
Signal
V1 to V5
V_CC/GND
OSC1/
OSC2
Vci
Number
of Pins I/O
5
—
2
—
2
—
1
I
V5OUT2
1
O
V5OUT3
1
O
C1/C2
2
—
TESTD
1
O
Dummy1 to 18
—
Dummy18
Device
Interfaced with Function
Power supply
Power supply
Oscillation
resistor/
clock
Power supply for LCD drive
V_CC – V5 = 15V (max)
V_CC: +2.4V to +5.5V, GND: 0V
When crystal oscillation is performed, an external
resistor must be connected. When the pin input is an
external clock, it must be input to OSC1.
—
V5 pin/
booster
capacitor
Inputs voltage to the booster to generate the liquid
crystal display drive voltage.
Vci is reference voltage and power supply for the
booster.
Vci: 1.0V to 5.0V ≤ V_CC.
Voltage input to the Vci pin is boosted twice and output.
When the voltage is boosted three times, a capacitor
with the same capacitance as that of C1–C2 should be
connected here.
V5 pin
Voltage input to the Vci pin is boosted three times and
output.
Booster capacitor External capacitor should be connected here when
using the booster.
—
Test pin. Must be left disconnected.
—
Dummy pads. These pads are electrically floating level.
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