Display/control data select H: display data; L: control data
4, 5
NC
NC pin
6
SCK
Serial clock input pin
7
SDA
Serial data input pin
8
VDD
Power supply for logic voltage,1.8V ~ 3.6V
9
VDD2, 3
Power supply for VLCD and analogue circuit VDD2,3 >=VDD
10, 11
NC
NC pin
12
VSS
Power supply, 0V
13
VB0-
LCD bias voltage are generated internally. Connect a 1uF capacitors between VB0+ and VB0-.
14
VB0+
15
NC
NC pin
16
VB1-
LCD bias voltage are generated internally. Connect a 1uF capacitors between VB1+ and VB1-.
17
VB1+
18
NC
NC pin
19
VLCDIN
LCD power supply pins. When internal VLCD is used, connected these pins together and connect a 1uF capacitor between VSS and this pin for voltage decoupling. When external VLCD, connector VLCD source to VLCDin pin and leave VLCDout pin open