Datasheet

GE-O12864D3-TMI/R Page 9/22 10.11.2009
18 CAP3+
DC/DC voltage converter. Connect a capacitor between this
terminal and the CAP1- terminal.
19 CAP1-
DC/DC voltage converter. Connect a capacitor between this
terminal and the CAP1+ terminal.
20 CAP1+
DC/DC voltage converter. Connect a capacitor between this
terminal and the CAP1- terminal.
21 CAP2+
DC/DC voltage converter. Connect a capacitor between this
terminal and the CAP2- terminal.
22 CAP2-
DC/DC voltage converter. Connect a capacitor between this
terminal and the CAP2+ terminal.
23 CAP4+
DC/DC voltage converter. Connect a capacitor between this
terminal and the CAP2- terminal.
24 VRS
This is the externally-input VREG power supply for the LCD
power supply voltage regulator.
25 V4
This is a multi-level power supply for the liquid crystal drive.
The voltage Supply applied is determined by the liquid crystal
cell, and is changed through the use of a resistive voltage
divided or through changing the impedance using an op. amp.
Voltage levels are determined based on Vss, and must
maintain the relative magnitudes shown below.
V0 ≧V1 ≧V2 ≧V3 ≧V4 ≧Vss
When the power supply turns ON, the internal power supply
circuits produce the V1 to V4 voltages shown below. The
voltage settings are selected using the LCD bias set command.
26 V3
27 V2
28 V1
29 V0
30 VR
Output voltage regulator terminal. Provides the voltage
between VDD and V5 through a resistive voltage divider.
IRS = “L” : the V5 voltage regulator internal resistors are not
used .
IRS = “H”
: the V5 voltage regulator internal resistors are used
.
31 C86
This is the MPU interface switch terminal.
C86 = “H”: 6800 Series MPU interface.
C86 = “L”: 8080 MPU interface.
32 P/S
This is the parallel data input/serial data input switch terminal.
P/S = “H”: Parallel data input.
P/S = “L”: Serial data input.
The following applies depending on the P/S status:
When P/S = “L”, D0 to D5 may be “H”, “L” or Open.
RD (E) and WR (R/W) are fixed to either “H” or “L”.
With serial data input, It is impossible read data from RAM .