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MCZ33975AEK Datasheet (PDF) - Freescale Semiconductor, Inc

MCZ33975AEK Datasheet PDF - Freescale Semiconductor, Inc
Part # MCZ33975AEK
Download  MCZ33975AEK Download

File Size   1313.0 Kbytes
Page   34 Pages
Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc
Description Multiple Switch Detection Interface with Suppressed Wake-up and 32mA Wetting Current

MCZ33975AEK Datasheet (PDF)

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MCZ33975AEK Datasheet PDF - Freescale Semiconductor, Inc

Part # MCZ33975AEK
Download  MCZ33975AEK Click to download

File Size   1313.0 Kbytes
Page   34 Pages
Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc
Description Multiple Switch Detection Interface with Suppressed Wake-up and 32mA Wetting Current

MCZ33975AEK Datasheet (HTML) - Freescale Semiconductor, Inc

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MCZ33975AEK Product details

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 32mA and 4.0mA for switch-to-ground inputs, and an interrupt bit that can be reset.

Features
• Designed to operate from 5.5V ≤ VPWR ≤ 28V
• Switch input voltage: (33975: -14 to 38V) (33975A: -14 to 40V)
• Interfaces to microprocessor using 3.3V/5.0V 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 (32mA or 4.0mA for switch-to-ground
   inputs)
• Sleep State current VPWR 100μA, Vdd 20μA
• Pb-free packaging designated by suffix code EK




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About Freescale Semiconductor, Inc


Freescale Semiconductor was an American semiconductor company that was founded in 1948.
The company was a leading provider of microcontrollers, sensors, and other semiconductor products for various applications in the automotive, industrial, and consumer markets.
Freescale's products were known for their high performance, low power consumption, and small form factor.
The company was acquired by NXP Semiconductors in 2015, and its products and technologies continue to be developed and sold under the NXP brand.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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