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| PT6526 Datasheet, PDF (11/24 Pages) Princeton Technology Corp – LCD Driver IC | |||
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PT6526
DISPLAY CONTROL AND THE /INH PIN
When power is initialized, the internal data of PT6526 (that is, display data â D1 to D204 and the control data) are not
defined. Irrelevant displays caused by the undefined internal data can be prevented by using the following procedures.
The /INH pin must be set to âLOWâ at the same time as the power is applied to turn OFF the display. Doing this will set
the output pins â SG1/P1 to SG12/P12, SG13 to SG51 and COM1 to COM4 to âLOWâ level. While the /INH pin is held at
âLOWâ level, the microcontroller must send the serial data. Then the application can set the /INH pin to âHIGHâ. Please
refer to the figure below.
Notes:
1. t1 = determined by the value of C and R.
2. tc = 10us (minimum)
V1.1
11
November 2009
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