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MC33975ATEKR2

更新时间： 2024-02-14 07:54:11
品牌 Logo 应用领域
恩智浦 - NXP 光电二极管接口集成电路
页数 文件大小 规格书
32页 754K
描述
Switch Detection Interface, 22-switches, 32mA Suppressed Wakeup, 3.3 V / 5.0 V SPI , SOIC 32, Reel

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MC33975ATEKR2 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Transferred零件包装代码：SOIC
包装说明：0.65 PITCH, ROHS COMPLIANT, SOIC-32针数：32
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.1
接口集成电路类型：INTERFACE CIRCUITJESD-30 代码：R-PDSO-G32
JESD-609代码：e3长度：10 mm
湿度敏感等级：3功能数量：1
端子数量：32最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：2.45 mm
最大供电电压：5.5 V最小供电电压：3 V
标称供电电压：5 V表面贴装：YES
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：40
宽度：7.5 mmBase Number Matches：1

MC33975ATEKR2 数据手册

 浏览型号MC33975ATEKR2的Datasheet PDF文件第2页浏览型号MC33975ATEKR2的Datasheet PDF文件第3页浏览型号MC33975ATEKR2的Datasheet PDF文件第4页浏览型号MC33975ATEKR2的Datasheet PDF文件第5页浏览型号MC33975ATEKR2的Datasheet PDF文件第6页浏览型号MC33975ATEKR2的Datasheet PDF文件第7页 
Document Number: MC33975  
Rev 11.0, 01/2014  
escale Semiconductor  
Technical Data  
Multiple Switch Detection  
Interface with Suppressed  
Wake-up and 32 mA Wetting  
Current  
33975  
33975A  
MULTIPLE SWITCH  
DETECTION INTERFACE WITH  
SUPPRESSED WAKE-UP  
The 33975 Multiple Switch Detection Interface with Suppressed Wake-  
up is designed to detect the closing and opening of up to 22 switch  
contacts. The switch status, either open or closed, is transferred to the  
microprocessor unit (MCU) through a serial peripheral interface (SPI).  
The device also features a 22-to-1 analog multiplexer for reading  
inputs as analog.  
The 33975 device has two modes of operation, Normal and Sleep.  
Normal mode allows programming of the device and supplies switch  
contacts with pull-up or pull-down current as it monitors the switch  
change of state. The Sleep mode provides low quiescent current,  
which makes the 33975 ideal for automotive and industrial products  
requiring low sleep state currents.  
Improvements are a programmable interrupt timer for Sleep mode that  
can be disabled, switch detection currents of 32 mA and 4.0 mA for  
switch-to-ground inputs, and an interrupt bit that can be reset. This  
device is powered using SMARTMOS technology.  
EK SUFFIX (PB-FREE)  
98ASA10556D  
32-PIN SOICW EP  
Applications  
Features  
•
•
•
•
•
Automotive systems  
Industrial control systems  
Process control systems  
Security systems  
Systems requiring switch status verification for  
safety, operation, or process control purposes  
• Designed to operate from 5.5 V VPWR 28 V  
• Switch input voltage: (33975: -14 to 38 V) (33975A: -14 to 40 V)  
• Interfaces to microprocessor using 3.3 V/5.0 V SPI protocol  
• Selectable wake-up on change of state  
• 14 switch-to-ground inputs  
• 8 programmable inputs (switches to battery or ground)  
• Selectable wetting current (32 mA or 4.0 mA for switch-to-ground  
inputs)  
• Sleep State current V  
100 A, VDD 20 A  
PWR  
VDD  
POWER SUPPLY  
LVI  
VBAT  
VBAT  
33975  
SP0  
SP1  
VPWR  
VDD  
VBAT  
ENABLE  
VDD  
SP7  
WAKE  
SG0  
SG1  
MCU  
SI  
SCLK  
CS  
MOSI  
SCLK  
CS  
WATCHDOG  
RESET  
SG12  
SG13  
SO  
MISO  
INT  
INT  
AMUX  
AN0  
GND  
Figure 1. 33975 Simplified Application Diagram  
© Freescale Semiconductor, Inc., 2005 - 2014. All rights reserved.  
 
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