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MC33972EW

更新时间: 2024-01-26 14:21:12
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA /
页数 文件大小 规格书
28页 506K
描述
Multiple Switch Detection Interface with Suppressed Wake-Up

MC33972EW 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 MM PITCH, LEAD FREE, SOIC-32针数:32
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.01
Is Samacsys:N接口集成电路类型:INTERFACE CIRCUIT
JESD-30 代码:R-PDSO-G32JESD-609代码:e3
长度:11 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:SSOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):245认证状态:Not Qualified
座面最大高度:2.65 mm最大供电电压:5.25 V
最小供电电压:3.1 V标称供电电压:3.3 V
电源电压1-最大:26 V电源电压1-分钟:8 V
电源电压1-Nom:13 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:30
宽度:7.5 mmBase Number Matches:1

MC33972EW 数据手册

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Freescale Semiconductor, Inc.  
Document order number: MC33972  
Rev 3.0, 12/2004  
MOTOROLA  
SEMICONDUCTOR TECHNICAL DATA  
Advance Information  
33972  
Multiple Switch Detection Interface  
with Suppressed Wake-Up  
The 33972 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 analog input  
signal is buffered and provided on the AMUX output terminal for the MCU to  
read.  
MULTIPLE SWITCH  
DETECTION INTERFACE WITH  
SUPPRESSED WAKE-UP  
The 33972 device has two modes of operation, Normal and Sleep. Normal  
mode allows programming of the device and supplies switch contacts with  
pullup or pulldown current as it monitors switch change of state. The Sleep  
mode provides low quiescent current, which makes the 33972 ideal for  
automotive and industrial products requiring low sleep state currents.  
DWB SUFFIX  
EW (Pb-FREE) SUFFIX  
CASE 1324-02  
Features  
• Designed to Operate 5.5 V VPWR 26 V  
• Switch Input Voltage Range -14 V to VPWR, 40 V Max  
32-TERMINAL SOICW  
• Interfaces Directly to Microprocessor Using 3.3 V/5.0 V SPI Protocol  
• Selectable Wake-Up on Change of State  
• Selectable Wetting Current (16 mA or 2.0 mA)  
• 8 Programmable Inputs (Switches to Battery or Ground)  
• 14 Switch-to-Ground Inputs  
ORDERING INFORMATION  
Temperature  
Device  
Package  
Range (T )  
A
MC33972DWB/R2  
MC33972EW/R2  
32 SOICW  
-40°C to 125°C  
• VPWR Standby Current 100 µA Typical, VDD Standby Current 20 µA  
Typical  
• Active Interrupt (INT) on Change-of-Switch State  
• Pb-Free Packaging Designated by Suffix Code EW  
33972 Simplified Application Diagram  
V
DD  
V
BAT  
Power Supply  
LVI  
V
V
33972  
BAT  
Enable  
SP0  
SP1  
V
PWR  
Watchdog  
Reset  
MCU  
V
DD  
BAT  
SP7  
WAKE  
SI  
SCLK  
CS  
MOSI  
SCLK  
CS  
SG0  
SG1  
SO  
MISO  
INT  
INT  
AMUX  
AN0  
SG12  
SG13  
GND  
This document contains information on a new product.  
Specifications and information herein are subject to change without notice.  
For More Information On This Product,  
Go to: www.freescale.com  
© Motorola, Inc. 2004  

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