Pin no.
Symbol
Function
1
IRS
This terminal selects the resistors for the V0 voltage level adjustment
IRS=”H”: Use the internal resistors
IRS=”L”: Do not use the internal resistors
2
PS
Parallel or Serial Interface. “H”: Parallel; ”L” Serial
3
C86
MPU interface select I/O
“H”:=6800 series; “L”:=8080 series
4
VR
Voltage adjustment pad. Applies voltage between V0 and VSS using a resistive divider.
5
V0
LCD driver suppliers voltages. The voltage determined by the LCD cell is
impedance-converted by a resistive driver or an operation amplifier for
application. Voltages should be according to the following relationship:
V0≥V1≥V2≥V3≥V4≥VSS2
6
V4
7
V3
8
V2
9
V1
10
CAP2-
Capacitor 2- pad for internal DC/DC voltage converter
11
CAP2+
Capacitor 2+ pad for internal DC/DC voltage converter
12
CAP1+
Capacitor 1+ pad for internal DC/DC voltage converter
13
CAP1-
Capacitor 1- pad for internal DC/DC voltage converter
14
CAP3+
Capacitor 3+ pad for internal DC/DC voltage converter
15
VOUT
DC/DC voltage converter output. Connect a capacitor between this terminal and VSS
16
VSS
Ground (0)
17
VDD
Power supply pin. (3.3V)
18
D7(SI)
When the serial interface is selected (P/S=” L”), then D7 serves as the serial data input terminal
(SI) and D6 serves as the serial clock input terminal (SCL).
When the serial interface is selected, fix D0~D5 pads to VDD or VSS level.
When the chip select is inactive, D0 to D7 are set to high impendence.
19
D6(SCL)
20
D5
21
D4
22
D3
23
D2
24
D1
25
D0
26
/RD(E)
6800 series: enable clock input pin
8080 series: “L” read select enable pin
27
R/W
6800 series: “H”: read, “L”: write; 8080 series: “L” write select
28
A0
Display/control data select “H”: display data; “L”: control data
29
/RES
Reset signal input
30
/CS1
Chip select input pin active when /CS1 is low
