HD66710 Datasheet, PDF (11/73 Pages) Hitachi Semiconductor – (Dot Matrix Liquid Crystal Display Controller/Driver)

HD66710
Table 1 Pin Functional Description (cont)
Signal
V_CC, GND
OSC1, OSC2
Vci
V5OUT2
V5OUT3
C1/C2
TEST
Device
I/O Interfaced with Function
— Power supply
— Oscillation
resistor clock
V_CC: +2.7V to 5.5V, GND: 0V
When CR oscillation is performed, a resistor must be
connected externally. When the pin input is an external
clock, it must be input to OSC1.
I
—
O V5 pin/
Booster
capacitance
Input voltage to the booster, from which the liquid crystal
display drive voltage is generated.
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, the same capacity
as that of C1–C2 should be connected.
O V5 pin
Voltage input to the Vci pin is boosted three times and
output.
— Booster
capacitance
External capacitance should be connected when using the
booster.
I
—
Test pin. Should be wired to ground.
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