Datasheet

Preliminary
Subject To Change Without Notice
12864Z
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R/W(WR#) 14
This is a MCU interface input pin. When 6800-series Parallel Interface
mode is selected, this pin is used as Read/Write (R/W) selection input.
Pull this pin to HIGH for read mode and pull it to LOW for write mode.
When 8080-series Parallel Interface mode is selected, this pin is used
as Write (WR#) selection input. Pull this pin to LOW for write mode.
Data write operation is initiated when this pin is pulled LOW and the
CS# is pulled LOW.
D/C 15
Data/Command Select. This is the Data/Command control pin. When it
is pulled HIGH, the input at D7-D0 is treated as display data. When it is
pulled LOW, the input at D7-D0 is transferred to the command
registers. For detail relationship to MCU interface signals, please refer
to the Timing Characteristics Diagrams.
RES# 16 Reset,active low
CS# 17 Chip Select,active low
NC 18 No Connection
These are MCU interface input selection pins. See the following table
for selecting different interfaces:
BS2 19
6800-paralle
interface
8080-parallel
interface
Serial
interface
BS1 0 1 0
BS2 1 1 0
BS1 20
VDD 21 Logic Voltage +3V
NC 22 No Connection
NC 23 No Connection
NC 24 No Connection
VBREF 25
This is an internal voltage reference pin for booster circuit. A
stabilization capacitor, typ. 1uF, should beconnected to Vss.
NC 26 No Connection
NC 27 No Connection
VDDB 28
This is a power supply pin for the internal buffer of the DC-DC voltage
converter. It must be connected to VDD when the converter is used.
NC 29 No Connection
VSS 30 Ground
NC 31 No Connection