msm9004-01 Oki Semiconductor, msm9004-01 Datasheet - Page 12

• Manufacturer Part Number: msm9004-01
• Description: 1/3, 1/4 Duty Lcd Driver With 4-dot Common Driver And 49-dot Segment Driver
• Manufacturer: Oki Semiconductor

¡ Semiconductor
How to Decrease Transfer Time When Unused Segments Exist
The MSM9004-01/02 can operate even if segment data is not full. Input data as shown in the
figure below. In this case, the last 4 bits are the select bits.
Transfer example: for 30 segments
Note:
Recommended RC Values for MSM9004-02 Oscillation Circuit
Shown below are the recommended oscillation resistor (R
providing frame frequency f
• R
• C
(Resistance and capacitance variations due to temperature change are not included.)
For requirements of supply voltage (V
(f
• V
• Ta = –40 to +85 C
• f
FRM
FRM
CLOCK2
DATA
LOAD
O
O
DD
= 62 kW 5%
= 0.01 mF 5%
):
= 5.0 V
=
Always set "0" to the dummy bits.
24
1
oscillation frequency
D30
D29 D28 D27 D26
FRM
LCD display bits
(30 bits)
of approximately 62 Hz to 190 Hz.
DD
), ambient temperature range (Ta), and frame frequency
D2
D1
0
Dummy bits
O
(3 bits)
) and capacitor (C
0
0
C1
Select bits
C2
(4 bits)
MSM9004-01/02
C3
O
) values for
C4
12/15