HD66766R Datasheet, PDF (12/97 Pages) Hitachi Semiconductor – 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors

HD66766R
Rev. 1.0-1 / September 2002
Table 4 cont.
Number of
Signals
Pins
I/O
C12+, C12- 2
—
C21+, C21- 2
—
C22+, C22- 2
—
C23+, C23- 2
—
C24+, C24- 2
—
CEP, CEM 2
—
VREFL 1
—
VREFM 1
—
BIASC
1
—
VCC, GND 2
—
AVCC
1
—
AGND
1
—
OSC1,
2
I/O
OSC2
RESET* 1
I
VccDUM 1
O
GNDDUM 1
O
Dummy 1
—
TEST1,
2
I
TEST 2
Connected to Functions
Step-up
capacitance
When step-up circuit is used, connect a step-up capacitor.
Step-up
capacitance
When step-up circuit is used, connect a step-up capacitor.
Step-up
capacitance
When step-up circuit is used, connect a step-up capacitor.
Step-up
capacitance
When step-up circuit is used, connect a step-up capacitor.
Step-up
capacitance
When step-up circuit is used, connect a step-up capacitor.
Step-up
capacitance or
open
Connect a step-up capacitor to generate VCL level by
VCH and VM. When step-up circuit is not used, leave
this pin open.
VCC or external
power supply
Inputs reference voltage for LCD drives power supply.
Input lower level than Vcc. Since input current does
not run, level input, which is divided by resistors, is also
possible.
Capacitor for
stabilization or
external power
supply
Connect capacitor for stabilization for internal power
supply. When internal operational amplifier is not used,
supply external voltage.
Capacitor for
stabilization or
open
Connect capacitor for stabilization for internal power
supply.
Power supply
VCC: + 2.2 V to + 3.6 V; GND (logic): 0 V
—
VCC for power supply circuit. Input the same level of
voltage as VCC.
—
GND for power supply circuit.
Oscillation-resistor Connect an external resistor for R-C oscillation. When
providing clocks from outside, input clock to OCS1 and
leave OSC2 open.
MPU or external
R-C circuit
Open unused pins
Reset pin. Initializes the LSI when low. Must be reset
after power-on. Since HCD66766RBP has three
RESET pins, use one pin and open unused two pins.
Input pins
Outputs the internal VCC level; shorting this pin sets the
adjacent input pin to the VCC level.
Input pins
Outputs the internal GND level; shorting this pin sets the
adjacent input pin to the GND level.
—
Dummy pad. Must be left disconnected.
GND
Test pin. Must be fixed at GND level.
12