HT1627

RAM Mapping 64´16 LCD Controller for I/O mC Features · · · · · · · · · HT1627 Operating voltage: 2.7V~5.2V Built-in RC 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 selection 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 Cascade application General Description HT1627 is a peripheral device specially designed for I/O type mC used to expand the display capability. The max. display segment of the device are 1024 patterns (64´16). It also supports serial interface, buzzer sound, Watchdog Timer or time base timer functions. The HT1627 is a memory mapping and multi-function LCD controller. The software configuration feature of the HT1627 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 HT1627. The HT162X series have many kinds of products that match various applications. Selection Table HT162X COM SEG Built-in Osc. Crystal Osc. Ö HT1620 HT1621 HT1622 HT16220 HT1623 HT1625 HT1626 HT1627 HT16270 4 32 4 32 Ö Ö 8 32 Ö Ö 8 32 8...