Programmable Digital Lock ICs

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Automotive Ignition Digital Lock .. (14 Pins) LS7220, LS7220-S 5,040 four digit Combinations (for a 10 number keypad) Combinations are hard-wire programmed SENSE input enables chip operation Save Memory feature saves Unlock Condition for Valet Parking SAVE input sets Save Memory and LOCK input resets SAVE Memory Save Memory and Lock Status outputs Convenience Delay determined by external capacitor Static or  Momentary Lock Control output   Keypad Programmable Digital Lock .. (20 Pins) LS7222, LS7222-S LS7223, LS7223-S 38,416 four digit Combinations (for a 4 x 4 keypad matrix) 3 different user programmable codes LS7222 Programmable Codes:  Arm, Disarm, Duress LS7223 Programmable Codes:  Lock 1, Lock 2, Duress Lock and Program Status Outputs Static and Momentary Lock Control outputs Alarm and Tamper Detection outputs   Machine or Area Access Digital Lock .. (14 Pins) LS7225, LS7225-S, LS7226, LS7226-S 5,040 four digit Combinations (for a 10 number keypad) Combinations are hard-wire programmed SEQUENCE ENABLE input enables Combination Entry Combination Entry time controlled by external capacitor Static or Momentary Lock Control output Tamper Detection output Lock Status output