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Wake-up interface and method for awakening an automotive electronics module

  • US 5,621,250 A
  • Filed: 07/31/1995
  • Issued: 04/15/1997
  • Est. Priority Date: 07/31/1995
  • Status: Expired due to Term
First Claim
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1. A wake-up interface for awakening an automotive electronics module from an inactive state comprising;

  • a plurality of input switches;

    wake-up input switch interface means for generating a first current transient when one of said input switches is closed;

    wake-up sense means including a first latch for detecting said first current transient and a second latch responsive to said first latch for providing a wake-up command signal; and

    power control means responsive to said wake-up command for enabling module power.

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