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MC33972ATEW

厂商:
Freescale
类别:
信号调整
包装:
-
封装:
SOIC 32 300ML
无铅情况/ROHS:
无铅
描述:
MULT SW DET SUP-WKUP

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  • 参数
  • 描述
  • 文档
参数 数值
Application/Qualification Tier COMMERCIAL, INDUSTRIAL, AUTOMOTIVE
Interface and Input Control SPI
Peak Package Body Temperature (PPT)(°C) 260
Export Control Classification Number (US) EAR99
Package Material Plastic
Part Number MC33972ATEW
Ambient Operating Temperature (Min-Max) (°C) -40 to 125
Budgetary Price($US) 10000 @ $1.36 each
Device Function Signal Conditioning
UL94 (plastics flammability test) V0: burning stops within 10 seconds on a vertical specimen; no drips allowed
Package Thickness (nominal) (mm) 2.650
POQ Container BOX
Tape & Reel No
Minimum Package Quantity (MPQ) 42
REACH SVHC Freescale REACH Statement
Device Production Availability 21 Feb 2011
Diagnostics SPI
Load Supply Voltage (Min) (V) 5.5
Material Composition Declaration (MCD) Download MCD Report Download MCD Report
Life Cycle Description (code) PRODUCT RAPID GROWTH
Protection N/A
Additional Features-Analog Pulse wetting current
Preferred Order Quantity (POQ) 3360
Supply Voltage (Min-Max) (V) 3.1 to 5.25
Description MULT SW DET SUP-WKUP
Status Active
Maximum Time at Peak Temperature (s) 40
Mounting Style Surface Mount
Pin/Lead/Ball Count 32
Device Sample Availability 07 Sep 2010
Micron Size (μm) .65
Package Length (nominal) (mm) 7.500
Moisture Sensitivity Level (MSL) 3
Number of Reflow Cycles 3
Sample Exception Availability Y
Switch Monitoring Voltage (Min-Max) (V) (VSENSE) -14 to 40
Device Weight (g) .51000
Floor Life 168 HOURS
Halogen Free Yes
MPQ Container RAIL
RoHS Certificate of Analysis (CoA) Download RoHS CoA Report
2nd Level Interconnect e3
Harmonized Tariff (US) Disclaimer 8542.39.0000
Load Supply Voltage (Max) (V) 26
Package Description and Mechanical Drawing SOIC 32 300ML
Package Width (nominal) (mm) 11.000
Leadtime (weeks) 15
Material Type Tested Packaged Device

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, making the 33972 ideal for automotive and industrial products requiring low sleep state currents.

 

Freescale recommends the use of the "A" version devices for new designs.


Features

  • Interfaces directly to microprocessor using 3.3 V / 5.0 V SPI protocol
  • Selectable wake-up on change of state
  • Eight programmable inputs (switches to battery or ground)
  • Fourteen switch-to-ground inputs
  • Active Interrupt (INT) on change-of-switch state
  • Switch Voltage Range -14 – VPWR
  • Operating Voltage 5.5 V – 26 V (VPWR)
  • This product is included in Freescale’s , with assured supply for a minimum of 15 years after launch
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框图

Application Notes
文档名称 文档类型 软件 描述
MC33972ATEWPDF下载 点击下载 点击下载 AN2409
Brochures
文档名称 文档类型 软件 描述
MC33972ATEWPDF下载 点击下载 点击下载 BR1567
MC33972ATEWPDF下载 点击下载 点击下载 BR1569
MC33972ATEWPDF下载 点击下载 点击下载 BR1568
MC33972ATEWPDF下载 点击下载 点击下载 BRAUTOSOL
Fact Sheets
文档名称 文档类型 软件 描述
MC33972ATEWPDF下载 点击下载 点击下载 MC33972FS
Data Sheets
文档名称 文档类型 软件 描述
MC33972ATEWPDF下载 点击下载 点击下载 MC33972
Selector Guides
文档名称 文档类型 软件 描述
MC33972ATEWPDF下载 点击下载 点击下载 SG187