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LM8300IMT9 PDF预览

LM8300IMT9

更新时间： 2024-02-04 18:17:06
品牌 Logo 应用领域
美国国家半导体 - NSC 商用集成电路光电二极管控制器
页数 文件大小 规格书
20页 324K
描述
Four Wire Resistive Touchscreen Controller with Brownout

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中文翻译

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LM8300IMT9 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：TSSOP, TSSOP48,.3,20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：8.43商用集成电路类型：CONSUMER CIRCUIT
JESD-30 代码：R-PDSO-G48JESD-609代码：e3
长度：12.5 mm湿度敏感等级：2
功能数量：1端子数量：48
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装等效代码：TSSOP48,.3,20封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
电源：3/5 V认证状态：Not Qualified
座面最大高度：1.2 mm子类别：Other Consumer ICs
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：2.7 V
表面贴装：YES温度等级：COMMERCIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：6.1 mm
Base Number Matches：1

LM8300IMT9 数据手册

 浏览型号LM8300IMT9的Datasheet PDF文件第2页浏览型号LM8300IMT9的Datasheet PDF文件第3页浏览型号LM8300IMT9的Datasheet PDF文件第4页浏览型号LM8300IMT9的Datasheet PDF文件第5页浏览型号LM8300IMT9的Datasheet PDF文件第6页浏览型号LM8300IMT9的Datasheet PDF文件第7页 
PRELIMINARY  
December 2003  
LM8300/LM8500  
Four Wire Resistive Touchscreen Controller with  
Brownout  
self-power down mode, the current drawn is typically less  
1.0 General Description  
than 2 µA. The device resumes normal operation when a  
touch is detected on the touch screen or communication is  
detected on the UART. In addition to the self-power down  
mode, the controller can be disabled by pulling the SHUT-  
DOWN pin low. The controller resumes normal operation  
when the SHUTDOWN pin is tristated or pulled high.  
The LM8300/8500 is a 4-wire resistive touch screen control-  
ler. The controller samples and drives the touch screen  
without the need of any external hardware. The built in 10-bit  
A/D provides a maximum of 500 coordinate pairs per second  
(cpps). The data sampled from the touch screen is sent out  
on the UART at a speed of 38400 bps.  
The controller has an internal non-volatile memory storage  
element to store configuration data such as calibration points  
or controller configurations.  
The controller has a power-saving mode which causes the  
controller to self-power down when no touch is detected on  
the touch screen for a specified amount of time. In the  
Devices included in this datasheet:  
Operating  
Voltage  
Brownout  
Voltage  
Operating  
Frequency  
I/O  
Pins  
Device  
LM8300  
LM8500  
Packages  
Temperature  
0˚C to +70˚C  
0˚C to +70˚C  
44 LLP, 44 PLCC,  
48 TSSOP  
3, 5 V  
5 V  
2.7 to 2.9 V  
3.27 MHz  
18  
44 LLP, 44 PLCC,  
48 TSSOP  
4.17V to 4.5V 3.27, 10 MHz  
18  
n Controller configurations are stored in the internal  
non-volatile storage element  
n Touch pressure can be measured  
2.0 Features  
KEY FEATURES  
n Supports 4 wire resistive touch panels  
n Low power standby current typically less than 2 µA at  
5.5V  
n Maximum speed of 500 coordinate pairs per second  
n Automatic wake up and return to standby  
n 10 bit A/D  
n On-chip touch screen current drivers - no external driver  
required  
n UART interface  
APPLICATIONS  
n Personal Digital Assistants  
n Smart Hand-Held Devices  
n Touch Screen Monitors  
n Point-of-Sales Terminals  
n KIOSK  
n Pagers  
n Cell Phones  
™
COP8 is a trademark of National Semiconductor Corporation.  
© 2004 National Semiconductor Corporation  
DS200372  
www.national.com  
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