S6B0107 Datasheet, PDF (17/23 Pages) Samsung semiconductor – 64CH COMMON DRIVER FOR DOT MATRIX LCD

64CH COMMON DRIVER FOR DOT MATRIX LCD
S6B0107
FUNCTIONAL DESCRIPTION
RC Oscillator
The RC Oscillator generates CL2, M, FRM of the S6B0107, and CLK1 and CLK2 of the S6B0108 by the
oscillation resister R and capacitor C. When selecting the master/slave mode, the oscillation circuit is as
following:
Master Mode: In the master mode, use these terminals as shown below.
S6B0107
S6B0107
R
CR
R_f
47KΩ
C
C_f
20pF
Internal Oscillation
R
CR
C
Open
External
Clock
Open
External Clock
Slave Mode: In the slave mode, stop the oscillator as shown below.
S6B0107
R
CR
C
Open
V _DD
Open
Timing Generation Circuit
It generates CL2, M, FRM, CLK1 and CLK2 by the frequency from the oscillation circuit.
Selection of Master/Slave (M/S) Mode
- When M/S is H, it generates CL2, M, FRM, CLK1 and CLK2 internally.
- When M/S is “L”, it operates by receiving M and CL2 from the master device.
Frequency Selection (FS)
To adjust FRM frequency by 70Hz, the oscillation frequency should be as follows:
FS
Oscillation Frequency
H
f_OSC = 430kHz
L
f_OSC = 215kHz
In the slave mode, it is connected to V_DD.
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