Datasheet

GE-O1602F-TMI-AT/R Page 8/14 7/7/2011
7.Interface Pin Function
Pin No. Symbol Level Description
1 RS H/L
Select registers.
0: Instruction register (for write)
Busy flag & address counter (for read)
1: Data register (for write and read)
2 R/W H/L
Select read or write (In parallel mode).
0: Write
1: Read
3 E
H,H→L
Starts data read/write. (“E” must connect to “VDD” when
serial interface is selected.)
4 DB0 H/L Data bus line
5 DB1 H/L
Data bus line
6 DB2 H/L
Data bus line
7 DB3 H/L
Data bus line
8 DB4 H/L
Data bus line
9 DB5 H/L
Data bus line
10 DB6/SCL H/L
Data bus line
(In I2C interface DB6 (SCL) is clock input.
SDA and SCL must connect to I2C bus (I2C bus is to connect
a resister between SDA/SCL and the power of I2C bus ).
11 DB7/SDA H/L
Data bus line
(In I2C interface DB7 (SDA) is input data.
SDA and SCL must connect to I2C bus (I2C bus is to connect
a resister between SDA/SCL and the power of I2C bus ).
12 V
SS
0V Ground
13
V
DD
3.3/5.0V
(bon=1
Max=3.5
V
Supply Voltage for logic
14 Vout (Variable) Operating voltage for LCD
15 PSB
Interface selection
0:serial mode
(“E” must connect to “VDD” when serial mode is selected.)
1:parallel mode(4/8 bit)
In I2C interface PSB must connect to VDD
16 PSI2B
17 CAP1P
For voltage booster circuit(VDD-VSS)