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    | Partname: | LS7223 |  | Description: | Keypad programmable digital lock |  | Manufacturer: |  |  | Package: | DIP |  | Pins: | 20 |  | Oper. temp.: | 0 to 70 |  | Datasheet: | PDF (28.9K). Click here to download *)
 |  | 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. |  |  Click here to download LS7223 Datasheet*)
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