NT7501 데이터 시트보기 (PDF) - Novatek Microelectronics
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NT7501 Datasheet PDF : 38 Pages
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NT7501
System Bus Connection Terminals (continue)
Pad No.
2
3
6
5
1
Symbol
FR
DYO
VS1
DOF
FRS
I/O
Description
This is the liquid crystal alternating current signal I/O terminal.
M/S = “H”: Output
I/O
M/S = “L”: Input
When the NT7501 chip is used in master/slave mode, the various FR
terminals must be connected.
Common drive signal output. This output is enabled for only in master
O
operation and connects to the common driver DIO pad. It becomes HZ
in slave operation.
O
Internal power supply voltage monitor output.
This is the liquid crystal display blanking control terminal.
M/S = “H”: Output
I/O
M/S = “L”: Input
When the NT7501 chip is used in master/slave mode, the various DOF
terminals must be connected
This is the output terminal for the static drive.
O
This terminal is only enabled when the static indicator is ON when in
master operation mode, and is used in conjunction with the FR terminal.
Liquid Crystal Drive Pads
Pad No.
98 - 197
81 - 96,
198 - 213
Symbol
SEG0 - 99
COM15 - 0
COM16 - 31
97, 214
COMS
I/O
Description
O
Segment signal output for LCD display
O
Common signal output for LCD display
These are the COM output terminals for the indicator. Both terminals
output the same signal.
O
Do not connect these terminals if they are not used.
When in master/slave mode, the same signal is output by both master
and slave.
Option Pads
Pad No.
78 - 80
Symbol
OP1 - OP3
I/O
Description
I
Internal pull high, no connection for user
6
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