Holtek HT1626 LCD Controller Datasheet

HT1626 is a peripheral device specially designed for I/O type MCUs to expand the display capability. The device has a maximum display segment of 768 patterns (48 * 16). It also supports serial interface, buzzer sound, Watchdog Timer or time base timer functions. The HT1626 is a memory mapping and multi-function LCD controller. The software configuration feature of the HT1626 makes it suitable for multiple LCD applications including LCD modules and display subsystems. Only three lines are required for the interface between the MCU and the LCD controller.


Holtek HT1626 LCD Controller Datasheet - cover page
Brand
Holtek
Document type
Datasheet
Language
English
Pages
17
File format
PDF
File size
138 KB
Published
06 June, 2012
Updated
30 September, 2023
MD5 checksum
9937348A0B245E434869AC362F201DF6

About this manual

The HT1626 is a peripheral device designed for I/O type microcontrollers to expand display capabilities. It supports up to 48x16 patterns with 16 commons and 48 segments, utilizing a memory mapping structure directly linked to the LCD driver.

Key features include an internal resistor-type bias generator, a built-in RC oscillator or external crystal support, and a three-wire serial interface for communication. The device also incorporates functions such as buzzer sound generation, watchdog timer (WDT), and time base selection.

What's inside

  • Features
  • General Description
  • Block Diagram
  • Pin Assignment
  • Absolute Maximum Ratings
  • D.C. Characteristics
  • A.C. Characteristics
  • Functional Description
  • Command Table

Specifications

Operating Voltage2.7V to 5.2V
Max Display Size48x16 patterns
Interface Type3-wire serial interface
Clock Source OptionsBuilt-in RC oscillator or External 32.768kHz crystal
Package Type100 QFP

Frequently asked questions

What is the maximum display capacity of the HT1626?

The device supports a maximum of 48x16 patterns.

Does the HT1626 support external clock sources?

Yes, it accepts an external 32kHz frequency source input or a 32.768kHz crystal.

What are the operating voltage limits?

The device operates within a voltage range of 2.7V to 5.2V.

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