Datasheet > HT1647A_11

HT1647A_11

更新时间： 2024-01-30 11:44:56

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		控制器
页数	文件大小	规格书
19页	157K
描述
64x16 LCD Controller for I/O MCU

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HT1647A_11 数据手册

HT1647A

64´ 16 LCD Controller for I/O MCU

PATENTED

PAT No. : TW 099352

Technical Document

Application Note

Features

Operating voltage: 2.7V~5.2V

Eight kinds of time base/WDT selection

Built-in 32kHz RC oscillator

Time base or WDT overflow output

External 32.768kHz crystal oscillator or 32kHz

frequency source input

R/W address auto increment

Built-in buzzer driver (2kHz/4kHz)

Standby current: <1mA at 3V, <2mA at 5V

Power down command reduces power consumption

Software configuration feature

Internal resistor type: 1/5 bias or 1/4 bias, 1/16 duty

Two selectable LCD frame frequencies: 89Hz or

170Hz

Data mode and Command mode instructions

Three data accessing modes

Max. 64´16 patterns, 64 segments and 16 commons

Built-in bit-map display RAM: 1024 bits

(=64´16 bits)

Provides VLCD pin to adjust LCD operating voltage

Provides three kinds of bias current programming

Control of TN-type, STN-type LCDs and

ECB-type LCDs

Built-in internal resistor type bias generator

Six-wire interface (four data wires)

100-pin LQFP package and in chip form

Applications

Leisure products

Cellular phone

Games

Global positioning system

Consumer electronics

Personal digital assistant

General Description

HT1647A is a peripheral device specially designed for

I/O type MCU used to expand the display capability. The

max. display segment of the device are 1024 patterns

(64 segments and 16 commons). It also supports four

data bits interface, buzzer sound, Watchdog Timer or

time base timer functions. The HT1647A is a memory

mapping and multi-function LCD controller. Since the

HT1647A can control ECB-type (Electrically Controlled

Birefringence) LCDs in addition to current TN-type

(Twisted Nematic) or STN-type (Super Twisted Ne-

matic) LCDs. The software configuration feature of the

HT1647A make it suitable for multiple LCD applications

including LCD modules and display subsystems. Only

six lines (CS, WR, DB0~DB3) are required for the inter-

face between the host controller and the HT1647A.

Rev. 1.40

April 29, 2011

12 3 4 5 6 7...19

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