NJU6543 Ver la hoja de datos (PDF) - Japan Radio Corporation
Número de pieza
componentes Descripción
Fabricante
NJU6543 Datasheet PDF : 29 Pages
| |||
Preliminary NJU6543
! TERMINAL DISCRIPTION
No.
144
133
134
135
136
137
139
140
141
142
143
138
1~4
5~128
129~132
Pad Name
VDD
V0
V1
V2
V3
VSS
TEST
RSTb
CSb
SI
SCK
OSC
COM1 ~ COM4
SEG1 ~ SEG124
SEG125/P1 ~
SEG128/P4
Function
Power supply: 3V /5V
LCD driving voltage
V0 ≥ V1 ≥ V2 ≥ V3 ≥ VSS, V0 ≥VDD
Bias
At 1/3 bias ratio, keep V2- V3 open.
At 1/2 bias ratio, short V2- V3.
GND
VSS =0V
TEST
Keep TEST-VSS short
Reset
When RSTb is “L", command register and latch circuit is reset.
When this terminal is not used, should be VDD short. (keep power supply
condition when hardware reset circuit is used)
Chip select
When CSb is "L", data can be read in.
Serial data input (8 bit=1word)
Serial clock
External resistor and capacitance connection terminal for CR oscillation, or
external clock input terminal
Common driver outputs
Segment driver outputs
Segment driver outputs/general purpose output ports
These 4 terminals can be used as segment outputs or general purpose
output ports by setting Command Register.
When selected as general purpose ports, data can be outputted via
these ports during COM1 timing.
According to transferred data, "H"=VDD or "L"=VSS will be outputted.
Ver.2008-11-28
-3-
Share Link: 