LS7223 Overview
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.
LS7223 Key Features
- Stand alone lock logic
- 38416, 4-digit binations
- 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)