HT16K23
HT16K23 is LCD Controller Driver manufactured by Holtek Semiconductor.
Feature
- - Logic voltage: 2.4~5.5V
- - Integrated RC oscillator
- - Various display modes
- - Max. 20- 4 patterns, 20 segments, 4 mons, 1/3 bias, 1/4 duty
- - Max. 16- 8 patterns, 16 segments, 8 mons, 1/4 bias, 1/8 duty
- - I2C-bus interface
- - Key scan function
- - Max. 20- 1 matrix key scanning in 20- 4 display mode
- - Max. 16- 1 matrix key scanning in 16- 8 display mode
- - 16- 8 bits RAM for display data storage
- - Selectable hardware interrupt
- - R/W address auto increment
- - Manufactured in silicon gate S process
- - 28-pin SOP package
Applications
- - Industrial control indicator
- - Digital clock, thermometer, counter, voltmeter
- - bo set.
- - VCR set
- - Instrumentation readouts
- - Other consumer application
- - LCD displays
General Description
The HT16K23 is a memory mapping and multifunction LCD controller driver. The Max. display segment numbers in the device are 80 patterns (20 segments and 4 mons) or 128 patterns (16 segments and 8 mons). The Max. key scan circuits are 20- 1 matrix or 16- 1 matrix. 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. The HT16K23 is patible with most microcontrollers and municates via a two-line bidirectional I2C-bus.
Rev. 1.10
July 01, 2011
Datasheet pdf
- http://..net/
.Data Sheet.co.kr
HT16K23 Block Diagram
LCD bias circuit VDD VSS Power_on reset 0 1 2 3 Internal RC Oscillator SEG19/4/K19/INT SEG18/5/K18 SEG17/6/K17 SEG16/7/K16 SDA Timing generator LCD Driver / Keyscan circuit / Device address selecting circuit SEG15/K15/INT SEG14/K14 SEG13/K13
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 O M 4 /K 1 9 /IN T S E G 1 8 /C O M 5 /K 1 8 S E G 1 7 /C O M 6 /K 1 7 S E G 1 6 /C O M 7 /K 1 6 S E G 1 5 /K 1 5 /IN T S E G 1 4 /K 1 4 S E G 1 3 /K 1 3 S E G 1 2 /K 1 2 S E G 1 1...
