GDM12864A Datasheet, PDF (14/22 Pages) List of Unclassifed Manufacturers – Liquid Crystal Display Module

64CH Common Driver For Dot Matrix LCD 12
3) Duty Selection (DS1, DS2)
It provides various duty selection according to DS1, DS2.
DS1 DS2 DUTY
L
L
1/48
H
1/64
H
L
1/96
H
1/128
3. Data shift & Phase Select Control
1) Phase Selection
It is a circuit to shift data on synchronization or rising edge or falling edge of the CL2 according
to PCLK2.
PCLK2
H
L
Phase Selection
Data shift on rising edge of CL2
Data shift on falling edge of CL2
2) Data shift Direction Selection
When M/S is connected to VDD, DIO1 and DIO2 terminal is only output.
When M/S is connected to VSS, it depends on the SHL.
MS SHL DIO1 DIO2 Direction of Data
HH
Output Output C1~C64
L
Output Output C64~C1
LH
Input Output DIO1~C1~C64~DIO2
L
Output Input DIO2~C64~C1~DIO1
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