HH1621
HH1621 is 32 x 4 LCD Driver manufactured by Huahong.
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32 x 4 LCD Driver
Features
_ Operating voltage: 2.2V~5.2V _ Built-in 256k Hz RC oscillator _ External 32.768k Hz crystal or 256k Hz frequency source input _ Selection of 1/2, 1/3 bias, and selection of 1/2, 1/3,
1/4 duty LCD applications _ Internal time base frequency sources _ Two selectable buzzer frequencies (2/4k Hz) _ Built-in time base generator and WDT _ Time base or WDT overflow output _ Power down mand available
_ 8 kinds of time base/WDT clock sources _ Built-in 32x4 bit display RAM _ 3-wire serial interface. _ Internal LCD driving frequency source _ Software configuration _ Data mode and mand mode instructions _ R/W address auto increment _ Three data accessing modes _ VLCD pin for adjusting LCD operating voltage
General Descriptions
The HH1621 is a 128-pattern (32x4), memory mapping, and multi-function LCD driver. The S/W configuration feature of the HH1621 makes it...
