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HT1670(208QFP-A) PDF预览

HT1670(208QFP-A)

更新时间： 2024-11-23 21:07:35
品牌 Logo 应用领域
台湾合泰/盛群 - HOLTEK /
页数 文件大小 规格书
20页 170K
描述
Interface Circuit

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中文翻译

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HT1670(208QFP-A) 技术参数

生命周期：ObsoleteReach Compliance Code：unknown
风险等级：5.84Base Number Matches：1

HT1670(208QFP-A) 数据手册

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HT1670  
128´ 32 LCD Controller for I/O MCU  
PATENTED  
PAT No. : TW 099352  
Technical Document  
·
Tools Information  
·
FAQs  
·
Application Note  
Features  
·
·
Operating voltage: 2.7V~5.2V  
Six-wire interface (four data wires)  
·
·
Built-in 32kHz RC oscillator  
Eight kinds of time base/WDT selection  
·
·
External 32.768kHz crystal oscillator or 32kHz fre-  
quency source input  
Time base or WDT overflow output  
R/W address auto increment  
·
·
·
·
·
·
·
·
·
Standby current: <1mA at 3V, <2mA at 5V  
Built-in buzzer driver (2kHz/4kHz)  
Power down command reduces power consumption  
Software configuration feature  
Internal resistor type: 1/6 bias or 1/5 bias, 1/32 duty,  
and 1/16 duty  
·
·
·
Three selectable LCD frame frequencies: 64Hz,  
89Hz or 170Hz  
Data mode and Command mode instructions  
Three data accessing modes  
Max. 128´32 patterns, 128 segments and 32 com-  
Provides VLCD pin to adjust LCD operating voltage  
and max. VLCD voltage up to 7V  
mons  
144 segments and 16 commons selectable by com-  
mand method  
·
·
·
Provides three kinds of bias current programming  
Control of TN-type and STN-type LCDs  
208-pin QFP package  
·
·
Built-in bit-map display RAM: 4096 bits (=128´32 bits)  
Built-in internal resistor type bias generator  
Applications  
·
·
·
·
Leisure products  
Cellular phone  
·
Games  
Global positioning system  
Consumer electronics  
·
Personal digital assistant  
General Description  
HT1670 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 4096 patterns  
(128 segments and 32 commons). It also supports four  
data bits interface, buzzer sound, Watchdog Timer or  
time base timer functions. The HT1670 is a memory  
mapping and multi-function LCD controller. Since the  
HT1670 can control TN-type (Twisted Nematic) or  
STN-type (Super Twisted Nematic) LCDs. The software  
configuration feature of the HT1670 make it suitable for  
multiple LCD applications including LCD modules and  
display subsystems. Only six lines (CS, WR, DB0~DB3)  
are required for the interface between the host controller  
and the HT1670.  
Rev. 1.70  
1
April 29, 2011  
1234567...20

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