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MC33972TDWBR2 PDF预览

MC33972TDWBR2

更新时间： 2024-01-30 20:27:24
品牌 Logo 应用领域
飞思卡尔 - FREESCALE 接口集成电路光电二极管
页数 文件大小 规格书
32页 1303K
描述
Multiple Switch Detection Interface with Suppressed Wake-Up

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MC33972TDWBR2 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：SOIC包装说明：0.65 MM PITCH, SOIC-32
针数：32Reach Compliance Code：unknown
风险等级：5.6Is Samacsys：N
接口集成电路类型：INTERFACE CIRCUITJESD-30 代码：R-PDSO-G32
JESD-609代码：e0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：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL宽度：7.5 mm
Base Number Matches：1

MC33972TDWBR2 数据手册

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Document Number: MC33972  
Rev 15, 8/2008  
Freescale Semiconductor  
Advance Information  
Multiple Switch Detection  
Interface with Suppressed  
Wake-Up  
33972/A/T  
MULTIPLE SWITCH  
DETECTION INTERFACE  
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 pin for the MCU to read.  
The 33972 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 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 SUFFIX (Pb-FREE)  
98ARH99137A  
EK SUFFIX (Pb-FREE)  
98ASA10556D  
32-PIN SOICW EP  
32-PIN SOICW  
ORDERING INFORMATION  
Features  
Temperature  
• Designed to operate 5.5V ≤ VPWR ≤ 26V  
Device  
Package  
Range (T )  
A
• Switch input voltage range -14V to VPWR, 40V Max  
• Interfaces directly to MPU using 3.3V/5.0V SPI protocol  
• Selectable wake-up on change of state  
MC33972DWB/R2  
MC33972EW/R2  
• Selectable wetting current (16mA or 2.0mA)  
• 8 programmable inputs (switches to battery or ground)  
• 14 switch-to-ground inputs  
• Typical standby current - VPWR = 100μA and VDD = 20μA  
• Active interrupt (INT) on change-of-switch state  
• Pb-free packaging designated by suffix code EW  
• Exposed pad packaging designated by suffix code EK  
MCZ33972EW/R2  
MCZ33972AEW/R2  
MC33972TDWB/R2  
MC33972TEW/R2  
MCZ33972TEW/R2  
MCZ33972AEK/R2  
32 SOICW  
-40°C to 125°C  
32 SOICW EP  
VDD  
POWER SUPPLY  
LVI  
VBAT  
VBAT  
33972  
SP0  
SP1  
VPWR  
VDD  
VBAT  
ENABLE  
VDD  
SP7  
WAKE  
SG0  
SG1  
MCU  
MOSI  
SI  
SCLK  
CS  
WATCHDOG  
RESET  
SCLK  
CS  
SG12  
SG13  
SO  
MISO  
INT  
INT  
AMUX  
AN0  
GND  
Figure 1. 33972 Simplified Application Diagram  
* This document contains certain information on a new product.  
Specifications and information herein are subject to change without notice.  
© Freescale Semiconductor, Inc., 2007-2008. All rights reserved.  
1234567...32

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MC33975 FREESCALE

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 		Multiple Switch Detection Interface with Suppressed Wake-Up and 32mA Wetting Current
MC33975ATEK FREESCALE

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 		Multiple Switch Detection Interface with Suppressed Wake-up and 32 mA Wetting Current
MC33975ATEK NXP

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 		Switch Detection Interface, 22-switches, 32mA Suppressed Wakeup, 3.3 V / 5.0 V SPI , SOIC
MC33975ATEK/R2 FREESCALE

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 		Multiple Switch Detection Interface with Suppressed Wake-up and 32 mA Wetting Current
MC33975ATEKR2 NXP

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 		Switch Detection Interface, 22-switches, 32mA Suppressed Wakeup, 3.3 V / 5.0 V SPI , SOIC
MC33975EK FREESCALE

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 		Multiple Switch Detection Interface with Suppressed Wake-up and 32mA Wetting Current

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