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| MSC5301B-01 Datasheet, PDF (8/15 Pages) OKI electronic componets – LCD COMMON/SEGMENT DRIVER WITH RAM | |||
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¡ Semiconductor
MSC5301B-01
FUNCTIONAL DESCRIPTION
Pin Functional Description
⢠OS1 (Pin 39), OS2 (Pin 40), f (Pin 41)
These are pins for the RC oscillation circuit. Connect external resistors and a capacitor as shown
below. When inputting the external clock pulse, input it to OS1 pin. OS2 and f pins should
be left open.
OS1
OS2
f
RS
CT
RT
The relationship between the frame frequency fFR and internal clock frequency ff is expressed
by the following equation:
(RC oscillation frequency = internal clock frequency)
ff = 4 x 16 x fFR
In addition, the relationship between the frame frequence fFR and frame synchronizing signal
frequency fFRAM is expressed by the following equation.
fFRAM = fFR/2
⢠CS0 (Pin 30), CS1 (Pin 31)
Chip select input pins. Master or slave mode is selected by CS0 and CS1 as shown in the table
below. A maximum of 4 chips can be connected in this manner. Use the master mode when
using a single device.
CS0
CS1
L
L
H
L
L
H
H
H
Operation mode
Master mode
Slave mode
Slave mode
Slave mode
H : VCC level
L : GND level
8/15
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