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HT16270 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc |
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HT16270 Datasheet(HTML) 1 Page - Holtek Semiconductor Inc |
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1 / 17 page  HT16270 RAM Mapping 64 ´16 LCD Controller for I/O mC Selection Table HT162X HT1620 HT1621 HT1622 HT16220 HT1623 HT1625 HT1626 HT1627 HT16270 COM 4 4 888 8 16 16 16 SEG 32 32 32 32 48 64 48 64 64 Built-in Osc. ÖÖ Ö Ö Ö Ö Crystal Osc. ÖÖ Ö Ö Ö Ö Ö 1 April 21, 2000 Features · Operating voltage: 2.7V~5.2V · External Crystal 32.768kHz oscillator · 1/5 bias, 1/16 duty, frame frequency is 64Hz · Max. 64´16 patterns, 16 commons, 64 segments · Built-in internal resistor type bias generator · 3-wire serial interface · 8 kinds of time base/WDT selection · Time base or WDT overflow output · Built-in LCD display RAM · R/W address auto increment · Two selectable buzzer frequencies (2kHz/4kHz) · Power down command reduces power consumption · Software configuration feature · Data mode and Command mode instructions · Three data accessing modes · VLCD pin to adjust LCD operating voltage General Description HT16270 is a peripheral device specially de- signed for I/O type mC used to expand the dis- play capability. The max. display segment of the device are 1024 patterns (64´16). It also supports serial interface, buzzer sound, watch- dog timer or time base timer functions. The HT16270 is a memory mapping and multi-function LCD controller. The software configuration feature of the HT16270 make it suitable for multiple LCD applications includ- ing LCD modules and display subsystems. Only three lines are required for the interface be- tween the host controller and the HT16270. The HT162X series have many kinds of prod- ucts that match various applications. |
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