ST7689
6. PIN DESCRIPTION
6.1. Power Supply
Name
VDD
VDD1
VDD2
VDD3
VDD4
VDD5
VSS
VSS1
VSS2
VSS4
I/O
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Description
Power supply for logic circuit.
Power supply for OSC circuit.
Power supply for booster circuit.
Power supply for LCD.
Power supply for LCD.
Power supply for LCD.
Ground for logic circuit. Ground system should be connected together.
Ground for OSC circuit. Ground system should be connected together.
Ground for Booster Circuit. Ground system should be connected together.
Ground for LCD. Ground system should be connected together.
Version 1.0
Page 22 of 195
2009/10