Holtek Semiconductor HT16K23
The HT16K23 is a memory mapping and multifunction LCD controller driver. The software configuration feature of the HT16K23 makes it suitable for multiple LCD applications including LCD modules and display subsystems. The HT16K23 supports a hardware interrupt using register setting.APPLICATIONS
●● Industrial control indicator●● Digital clock, thermometer, counter, voltmeter
●● Combo set.
●● VCR set
●● Instrumentation readouts
●● Other consumer application
●● LCD displays
GENERAL DESCRIPTION
The Max. display segment numbers in the device are 80 patterns (20 segments and 4 commons) or 128 patterns (16 segments and 8 commons). The Max. key scan circuits are 20*1 matrix or 16*1 matrix. The HT16K23 is compatible with most microcontrollers and communicates via a two-line bidirectional I2C-bus. Rev. 1.10 1 July 01, 2011 Datasheet pdf - HT16K23 Block Diagram LCD bias circuit VDD VSS Power_on reset COM0 COM1 COM2 COM3 Internal RC Oscillator SEG19/COM4/K19/INT SEG18/COM5/K18 SEG17/COM6/K17 SEG16/COM7/K16 SDA Timing generator LCD Driver / Keyscan circuit / Device address selecting circuit SEG15/K15/INT SEG14/K14 SEG13/K13 SCL I2C Controller Display RAM 16*8bits Key data RAM 20*1 bits SEG2/K2 SEG1/K1 SEG0/K0 Pin Assignment V S S C O M 0 C O M 1 C O M 2 C O M 3 S E G 1 9 /C...