The LS7223 is a programmable electronic lock implemented in a monolithic CMOS integrated circuit. The circuit contains all the necessary memory, decoder and control logic to make a programmable "keyless" lock system to control electromechanical locks. Input is provided by a matrix keypad whose maximum allowable size is 4 x 4. CONNECTION DIAGRAM - TOP VIEW .
• Stand alone lock logic
• 38416, 4-digit combinations
• 3 different user programmable codes
• Momentary and static lock control outputs
• Internal key debounce circuit
• Tamper detection output
• Status outputs
• Low current consumption
• +4V to +15V operation (VDD -VSS)
• LS7223 (DIP), LS7223-S (SOIC) - See Figure 1 GENERAL DESCRIPTION: The LS7223 is a programmable electronic lock implemented in a monolithic CMOS integrated circuit. The circuit contains all the necessary memory, decoder and control logic to make a programmable "keyless" lock system to control electromechanical locks. Input .
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | LS7220 |
LSI Computer Systems |
DIGITAL LOCK FOR AUTOMOTIVE IGNITIONS | |
2 | LS7222 |
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 |