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MC33884 - SWITCH MONITOR INTERFACE

General Description

Freescale Semiconductor, Inc.

Switch to Battery or Switch

Key Features

  • Full Operation with 7.0 V ≤ VPWR ≤ 26 V, Limited Operation with 5.5 V ≤ VPWR ≤ 7.0 V.
  • Input Voltage Range:.
  • 14 V to 40 V.
  • Interfaces Directly to Microprocessors Using SPI Protocol.
  • 24.
  • Lead Wide Body SOIC Package.
  • Wake.
  • up on Change of Monitored Switch Status.
  • Programmable Wetting Current.
  • 4 Programmable Inputs to Monitor 4 Switch.
  • to.
  • Battery or 4 Switch.
  • to.
  • Ground Switches.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MOTOROLA SEMICONDUCTOR TECHNICAL DATA Freescale Semiconductor, Inc. Order this document by MC33884/D Advance Information Switch Monitor Interface The MC33884 Switch Monitor Interface is a monolithic silicon integrated circuit (IC) that performs switch monitoring functions. The device provides efficient interface between electrical switches and low voltage microprocessors. The MC33884 supplies switch contact pull–up and pull–down current while monitoring the input voltage level. All inputs are protected for transients when implemented with an appropriate static discharge capacitor used on the inputs. There are four modes of operation – Sleep, Normal, Polling, and Polling + INT Timer. Sleep mode reduces the current drain to a quiescent current level of 10 m A and disables the IC.