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Last update: 2008-06-03 16:06
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General Descriptions
The SS1621 is a 128-pattern (32x4), memory mapping, and multi-function LCD driver. The
S/W configuration feature of the SS1621 makes it suitable for multiple LCD applications including
LCD modules and display subsystems. Only three or four lines are required for the interface be-
tween the host controller and the SS1621. The SS1621 contains a power down command to reduce
power consumption.
Features
•
Operating voltage: 2.4V~5.2V.
•
Built-in 256kHz RC oscillator.
•
External 32.768kHz crystal or 256kHz frequency source input.
•
Selection of 1/2 or 1/3 bias, and selection of 1/2 or 1/3 or 1/4 duty LCD applications.
•
Internal time base frequency sources.
•
Two selectable buzzer frequencies (2kHz/4kHz).
•
Built-in time base generator and WDT.
•
Time base or WDT overflow output.
•
Power down command reduces power Consumption.
•
8 kinds of time base/WDT clock sources.
•
32x4 LCD driver.
•
Built-in 32x4 bit display RAM.
•
3-wire serial interface.
•
Internal LCD driving frequency source.
•
Software configuration feature.
•
Data mode and command mode instructions.
•
R/W address auto increment.
•
Three data accessing modes.
•
VLCD pin for adjusting LCD operating voltage.
RAM Mapping 32 X 4 LCD Controller for I/O uC
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