NJU6676 New Japan Radio Co., Ltd., NJU6676 Datasheet - Page 22

• Manufacturer Part Number: NJU6676
• Description: 64-Common x 132-Segment plus 1-Icon Bit Map Type LCD Controller and Driver
• Manufacturer: New Japan Radio Co., Ltd.

3-16) Power control set
This instruction controls the status of internal power circuits. Please refer to the (4) internal power
supply circuits for more detail.
3-17) LCD Driver On/Off
This instruction controls LCD driving waveform output through the COM/SEG terminals.
The NJU6676 contains low power LCD driving voltage generator circuit reducing own operating
current. Therefore , it requires the following sequence procedures at power on for power source
stabilized operation.
Note) The internal power supply must be Off when external power supply using.
* The wait time depends on the C3 to C7, COUT capacitors, and VDD and VLCD Voltage.
A0
Therefore it requires the actual evaluation using the LCD module to get the correct time.
A0
0
0
RD
RD
1
1
WR
WR
0
0
D7
D7
0
1
D6
D6
0
1
D5
D5
1
1
T.B.D
D4
D4
0
0
D3
D3
1
0
D2
D2
0
1
1
D1
D1
0
1
1
D0
D0
0
1
0
1
Voltage converter on
Voltage followers on
Voltage converte r off
Voltage regulator off
Voltage regulator on
Voltage followers off
PRELIMINARY
Status
Driver
NJU6676
Off
On