Datasheet Summary
LSI/CSI
U® L LSI puter Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 (631) 271-0400 FAX (631) 271-0405
A3800
DIGITAL LOCK FOR AUTOMOTIVE IGNITIONS January 2003
Features
:
- 5040 Four-Digit binations (for a 10 digit Keypad)
- binations 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...