ST7529 데이터 시트보기 (PDF) - Unspecified
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ST7529 Datasheet PDF : 86 Pages
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ST7529
6. PIN DESCRIPTION
6.1 POWER SUPPLY
Name I/O
Description
VDD Supply Power supply for logic circuit
VDD1 Supply Power supply for OSC circuit
VDD2 Supply Power supply for Booster Circuit
VDD3
VDD4 Supply Power supply for LCD
VDD5
VSS
VSS1 Supply Ground. Ground system should be connected together.
VSS4
VLCDOUT
Supply If the internal voltage generator is used, the VLCDIN & VLCDOUT must be connected together.
If an external supply is used, this pin must be left open.
VLCDIN
Supply An external LCD supply voltage can be supplied using the VLCDIN pad. In this case, VLCDOUT has to be
left open, and the internal voltage generator has to be programmed to zero. (SET register VB=0)
LCD driver supply voltages
V0In
V0out
V1
V2
V3
V4
V0In & V0out should be connected together in FPC area.
Voltages should have the following relationship:
V0 ≥ V1 ≥ V2 ≥ V3 ≥ V4 ≥ VSS
Supply When the internal power circuit is active, these voltages are generated as the following table according
to the state of LCD bias.
LCD bias
V1
V2
V3
V4
1/N bias
(N-1) / N x V0 (N-2) / N x V0
(2/N) x V0
(1/N) x V0
NOTE: N = 5 to 14
CAP6P O DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2N terminal.
DC/DC voltage converter. Connect a capacitor between this terminal and the CAP6P terminal.
CAP2N O
Connect a capacitor between this terminal and the CAP4P terminal.
Connect a capacitor between this terminal and the CAP2P terminal.
CAP4P O DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2N terminal.
CAP2P O DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2N terminal.
CAP1P O DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal.
DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1P terminal.
CAP1N O
Connect a capacitor between this terminal and the CAP3P terminal.
Connect a capacitor between this terminal and the CAP5P terminal.
Connect a capacitor between this terminal and the CAP7P terminal.
CAP3P O DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal.
CAP5P O DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal.
CAP7P O DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal.
6.2 LCD DRIVER SUPPLY
Name
VREF
CLS
CL
I/O
Description
O Reference voltage output for monitor only. Leave it open.
I
When using internal clock oscillator, connect CLS to VDD.
When using external clock oscillator, connect CLS to VSS.
I/O When using internal clock oscillator, it is the output of oscillator.
When using external clock oscillator, it is the input of oscillator.
Ver 1.8
12/86
2007/10/25
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