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HT16220 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc |
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HT16220 Datasheet(HTML) 1 Page - Holtek Semiconductor Inc |
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1 / 15 page  HT16220 RAM Mapping 32´8 LCD Controller for I/O MCU PATENTED PAT No. : 099352 Selection Table HT162X HT1620 HT1621 HT1622 HT16220 HT1623 HT1625 HT1626 COM 448 8 88 16 SEG 32 32 32 32 48 64 48 Built-in Osc. ¾Ö Ö ¾ ÖÖÖ Crystal Osc. ÖÖ ¾ Ö ÖÖÖ Rev. 1.90 1 October 12, 2009 Features · Operating voltage: 2.7V~5.2V · External Crystal 32.768kHz oscillator · 1/4 bias, 1/8 duty, frame frequency is 64Hz · Max. 32´8 patterns, 8 commons, 32 segments · Built-in internal resistor type bias generator · 3-wire serial interface · 8 kinds of time base or WDT selection · Time base or WDT overflow output · Built-in LCD display RAM · R/W address auto increment · Two selectable buzzer frequencies (2kHz or 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 · HT16220: 64pin LQFP package HT16220G: Gold bumped chip General Description HT16220 is a peripheral device specially designed for I/O type MCU used to expand the display capability. The max. display segment of the device are 256 patterns (32 ´8). It also supports serial interface, buzzer sound, watchdog timer or time base timer functions. The HT16220 is a memory mapping and multi-function LCD controller. The software configuration feature of the HT16220 make it suitable for multiple LCD applications including LCD modules and display subsystems. Only three lines are required for the interface between the host controller and the HT16220. The HT162X series have many kinds of products that match various applica- tions. Technical Document · Application Note |
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