HT16K23A

RAM Mapping 20*4/16*8 LCD Controller Driver with keyscan

General Information

The HT16K23A is a memory mapping and multifunction LCD controller driver. 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 software configuration feature of the HT16K23A makes it suitable for multiple LCD applications including LCD modules and display subsystems. The HT16K23A supports a hardware interrupt using register setting.

The HT16K23A is compatible with most microcontrollers and communicates via a two-line bidirectional I²C-bus.

 

Feature Details

Logic voltage

2.4V~5.5V

Integrated RC oscillatorAvailable
Various display modes
  • Max. 20×4 patterns, 20 segments, 4 commons,
  • 1/3 bias, 1/4 duty
  • Max. 16×8 patterns, 16 segments, 8 commons,
  • 1/4 bias, 1/8 duty
I²C-bus interfaceAvailable
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 storageAvailable
Selectable hardware interruptAvailable
R/W address auto incrementAvailable
Manufactured in silicon gate COMS processAvailable
28-pin SOP/SSOP packageAvailable

Resources

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