Datasheet4U Logo Datasheet4U.com

MC33972A Datasheet Multiple Switch Detection Interface

Manufacturer: Freescale Semiconductor (now NXP Semiconductors)

📥 Download Datasheet

Overview

Freescale Semiconductor Advance Information Document Number: MC33972 Rev.

9.0, 4/2007 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).

Key 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 pullup or pulldown 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.

📁 Similar Datasheet

Brand Logo Part Number Description Manufacturer
NXP Logo MC33972ATEK Multiple Switch Detection Interface NXP
NXP Logo MC33972ATEW Multiple Switch Detection Interface NXP
Motorola Logo MC33972 Multiple Switch Detection Interface Motorola
NXP Logo MC33972 Multiple Switch Detection Interface NXP
NXP Logo MC33972TEW Multiple Switch Detection Interface NXP

More Datasheets from Freescale Semiconductor (now NXP Semiconductors)

Part Number Description
MC33970 Dual Gauge Driver
MC33975 Multiple Switch Detection Interface
MC33975A Multiple Switch Detection Interface
MC33976 Dual Gauge Driver
MC33977 Single Gauge Driver
MC33901 High-speed CAN Transceiver
MC33912 LIN transceiver
MC33926 5.0A Throttle Control H-Bridge
MC33927 Three-Phase Field Effect Transistor Pre-Driver
MC33931 5.0A Throttle Control H-bridge