HT1620 controller equivalent, ram mapping 32 x 4 lcd controller.
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Logic operating voltage: 2.4V~3.3V LCD voltage: 3.6V~4.9V Low operating current <3mA at 3V External 32.768kHz cryst.
Internal time base frequency sources Two selectable buzzer frequencies (2kHz/4kHz) Built-in capacitor type bias charge p.
The HT1620 is a 128 pattern (32´4), memory mapping, and multi-function LCD driver. The S/W configuration feature of the HT1620 makes it suitable for multiple LCD applications including LCD modules and display subsystems. Only three or four lines are .
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