|
PIN NO.
|
SYMBOL
|
TYPE
|
FUNCTION DESCRIPTIONS
|
|
1
|
NC(GND)
|
P
|
It should be connected to external ground.
|
|
2
|
C2P
|
|
C1P/C1N-Pin for charge pump capacitor.
C2P/C2N-Pin for charge pump capacitor.
Connect to each other with a capacitor. They must be floated when the
Charge pump not use.
|
|
3
|
C2N
|
|
|
4
|
C1P
|
I
|
|
5
|
C1N
|
|
|
6
|
VBAT
|
P
|
Power supply for charge pump regulator circuit.
It must be connected to external source when charge pump is used. It must be float when charge pump is not used.
|
|
7
|
NC
|
|
NC
|
|
8
|
VSS
|
P
|
Ground pin. It must be connected to external ground.
|
|
9
|
VDD
|
P
|
Power pin for logic circuit. It must be connected to external source.
|
|
10
|
BS0
|
I
|
Interface selection pins.
|
|
11
|
BS1
|
|
12
|
BS2
|
|
13
|
CS#
|
I
|
Chip Select input pin. Active "L"
|
|
14
|
RES#
|
I
|
Hardware reset input pin. Active "L".
|
|
15
|
D/C#
|
I
|
This is Data/Command control pin.
When the pin is pulled HIGH, the data at D[7:0] is data. When the pin is pulled LOW, the data at D[7:0] is command. In I2C mode, this pin acts as SA0 for slave address section.
When 3-wire serial interface is selected, this pin must be connected to VSS
|
|
16
|
R/W#
|
I
|
This is read/write control input pin.
8080: data write enable; 6800: read/write select pin.
When serial or I2C interface is selected, this pin must be connected to VSS.
|
|
17
|
E#
|
I
|
This is read/write control input pin.
8080: data read enable; 6800: read/write enable pin.
When serial or I2C interface is selected, this pin must be connected to VSS.
|
|
18
|
D0
|
I/O
|
These are 8-bit bi-directional data bus to be connected to microprocessor's Data bus.
When serial interface mode is selected, D2 should be kept NC, D1 will be the serial data input: SDIN, D0 will be the serial clock input: SCLK.
When I2C mode is selected, D2, D1 should be tied together and serve as SDA and D0 is the serial clock input, SCL.
|
|
19
|
D1
|
|
20
|
D2
|
|
21
|
D3
|
|
22
|
D4
|
|
23
|
D5
|
|
24
|
D6
|
|
25
|
D7
|
|
26
|
IREF
|
I
|
Current reference for brightness adjustment.
This is segment output current reference pin. A resistor should be connected between this pin and VSS .Set the current at 12.5 uA maximum.
|
|
27
|
VCOMH
|
O
|
COM signal deselected voltage level.
A capacitor should be connected between this pin and VSS.
|
|
28
|
VCC
|
P
|
Power supply for OLED driving voltage. A capacitor should be connected between this pin and VSS, when charge pump is used.
It must be connected to external source when charge pump is not used.
|
|
29
|
VLSS
|
P
|
This is an analog ground pin. It should be connected to VSS externally.
|
|
30
|
NC(GND)
|
P
|
It should be connected to external ground.
|
