LCD Controller / Driver with Key Input HT16K23 Characteristics

LCD Controller / Driver with Key Input
HT16K23
Characteristics
 Logic voltage : 2.4V ~ 5.5V
 2 Display Mode Formats
Maximum Dots : 20 SEG  4 COM with 1  20 Key scanning
 Maximum Dots : 16 SEG  8 COM with 1  16 Key scanning
I2C-bus interface
168 bits RAM for display data storage
Selectable Hardware Interrupt
High EFT capability, high system ESD capability
Integrated 20 input keys to reduce PCB layout and its components
Requires few external circuit components
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Operating Procedure
Key Name
Function & Description
Set
Time Function Setting
(1) Press 『Set』 key once for Time setting mode.
(2) Press 『Set』 key twice for Alarm 1 setting mode.
(3) Press 『Set』 key 3 times for Alarm 2 setting mode.
H&M
Time Setting (In time function setting mode);
Press 『H』 key to adjust Hour; press 『M』 key to adjust Minute.
Alarm
Alarm Enable Function
(1) Press 『Alarm』 key once to enable Alarm 1.
(2) press 『Alarm』 key twice to enable Alarm 2.
Func
Music Source Select Key
(1) Press 『Func』 key once for iPod mode; press 『Func』 twice for tuner
mode; press 『Func』 key 3 times for MP3 mode; press 『Func』 key four
times to disable music function.
(2) Press 『←』
、
『→』 key to select track in 『iPod』
、
『tuner』
、
『MP3』mode.
AM/FM
Select Radio Band in Tuner Mode
(1) Press 『AM/FM』 key once for AM band.
(2) Press 『AM/FM』 key twice for FM band.
(3) Press 『AM/FM』 key 3 times for tuner mode.
(4) Press『←』、『→』 key to adjust frequency
Tbl/Bs
Treble/Bass Setting Key (For iPod, tuner and MP3 mode):
(1) Press 『Tbl/Bs』 key once for treble mode.
(2) Press 『Tbl/Bs』 key twice for bass mode.
(3) Press『→』 key to increase dB; press『←』 to decrease dB.
Application Circuit
Top Board