DS1204V PDF datasheet can download.
This product has Electronic Key functions.
This is one of the semiconductor types. This part name is DS1204V.
Manufacturers of the product is Dallas Semiconductor.
Image and pinout :
Some of the text files within the PDF file
w w a D . w S a t e e h U 4 t m o .c DS1204V DS1204V Electronic Key FEATURES PIN ASSIGNMENT • Cannot be deciphered by reverse engineering • Partitioned memory thwarts pirating • User-insertable packaging sion allows personal posses- DALLAS DS1204V ELECTRONIC KEY • Exclusive blank keys on request • Appropriate identification can be made with a 64-bit reprogrammable memory SIDE • Unreadable 64-bit security match code virtually prevents deciphering by exhaustive search with over 1019 possibilities • 128 bits of secure read/write memory create additional barriers by permitting data changes as often as needed • Rapid erasure of identification security match code and secure read/write memory can occur if tampering is detected • Low-power CMOS circuitry • Four million bps data rate • Durable and rugged • Applications include software authorization, gray market software protection, proprietary data, financial transactions, secure personnel areas, and sy [ … ]
Please refer to the file for details.