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
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