MC33972ATEWR2 Datasheet

Product Details

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 pin for the MCU to read.

Features

• Designed to operate 5.5 V ≤ VPWR ≤ 26 V
• Switch input voltage range -14 V to VPWR, 40 V Max
• Interfaces directly to MPU using 3.3 V/5.0 V SPI protocol
• Selectable wake-up on change of state
• Selectable wetting current (16 or 2.0 mA)
• 8 programmable inputs (switches to battery or ground)
• 14 switch-to-ground inputs
• Typical standby current - VPWR = 100 μA and VDD = 20 μA
• Active interrupt (INT) on change-of-switch state

Who we are?

Quality

At the heart of jinshengweiye Elec. lies a commitment to total customer satisfaction with a secure quality system .We have professional testing facilities and experienced QC& engineering team.With advanced equipment and experienced industry experts, jinshengweiye Elec. is committed to fulfilling the needs of our customers .

Inventory

jinshengweiye Elecs stocks components are ready to be shipped.
Hard-to-find,obsolete and high demand integrated circuit & LCD display ect. can be found by us.

Team

Our sales representatives, customer service agents,quality inspectors and component engineers strive to

Price

We offer the most competitive price for you , purchasing cost.

Speed

jinshengweiye Electronics has established a well- developed logistics system and global logistics network which guarantees our service is very quick, convenient and efficient. attention to environmental protection.

Environmental

Our service is in strict compliance with global environmental regulations and standards. We resolve to fulfill social responsibility and pay

Logistics

Fast&safe delivery Cooperated international express with good discount components Perfessional expert/import documentation work Profdeeional safe packing materials for international transportation

Source

Powerful source offer you hard to find electronic CooperatedFranchised distributor Quick quotation&fast response to order with competitive price