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MC33975A

Part Number	MC33975A
Manufacturer	Freescale Semiconductor
Description	Multiple Switch Detection Interface
Published	Aug 8, 2007
Detailed Description	www.DataSheet4U.com Freescale Semiconductor Technical Data Document order number: MC33975 Rev 4.0, 08/2005 Multiple S...
Datasheet	MC33975A PDF File

Overview

www.
DataSheet4U.
com Freescale Semiconductor Technical Data Document order number: MC33975 Rev 4.
0, 08/2005 Multiple Switch Detection Interface with Suppressed Wake-Up and 32mA Wetting Current Freescale offers multiple Switch Detection Interface Devices.
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 allo...

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