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The LS7220 is a MOS digital lock circuit. When wired to a ten-digit keypad, the circuit will recognize one four-digit combination out of a possible 5040 combinations. The LS7220 is configured with the features required for an Automotive Ignition Anti-Theft Digital Lock (See Figure 5). These features include Sense input which enables the IC, Save Memory for .
• 5040 Four-Digit Combinations (for a 10 digit Keypad)
• Combinations are Hard-Wire Programmed
• Sense Input Enables Operation
• Save Memory Feature for Valet Parking
• Convenience Delay Controlled by External Capacitor
• Static or Momentary Lock Control Output
• Save Memory and Lock Status Outputs
• +5V to +18V Operation (Vss - VDD)
• LS7220 (DIP), LS7220-S (SOIC) - See Figure 1
DESCRIPTION: The LS7220 is a MOS digital lock circuit. When wired to a ten-digit keypad, the circuit will recognize one four-digit combination out of a possible 5040 combinations. The LS7220 is configured with the fe.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | LS7222 |
LSI Computer Systems |
KEYPAD PROGRAMMABLE DIGITAL LOCK |
|
| 2 | LS7223 |
LSI Computer Systems |
KEYPAD PROGRAMMABLE DIGITAL LOCK |
|
| 3 | LS7225 |
LSI Computer Systems |
DIGITAL LOCK CIRCUIT with Tamper Output |
|
| 4 | LS7226 |
LSI Computer Systems |
DIGITAL LOCK CIRCUIT with Tamper Output |
|
| 5 | LS7210 |
LSI Computer Systems |
PROGRAMMABLE DIGITAL DELAY TIMER |
|
| 6 | LS7211 |
LSI Computer Systems |
PROGRAMMABLE DIGITAL DELAY TIMER |
|
| 7 | LS7211N |
LSI |
PROGRAMMABLE DIGITAL DELAY TIMER |
|
| 8 | LS7212 |
LSI Computer Systems |
PROGRAMMABLE DIGITAL DELAY TIMER |
|
| 9 | LS7212N |
LSI |
PROGRAMMABLE DIGITAL DELAY TIMER |
|
| 10 | LS7213 |
LSI Computer Systems |
PROGRAMMABLE DIGITAL DELAY TIMER |
|
| 11 | LS7217 |
LSI |
PHOTO CONTROLLED OUTDOOR LIGHTING |
|
| 12 | LS7231 |
LSI Computer Systems |
TOUCH CONTROL LAMP DIMMER |
|