Analog Devices Inc./Maxim Integrated's DS1963S-F5- iButton® is a 512-byte NVSRAM component designed for secure data storage. This device features an SHA-1 engine for cryptographic authentication, making it suitable for applications requiring robust data integrity and user verification. The iButton® form factor offers a durable and convenient solution for portable data logging and authentication. Its non-volatile nature ensures data retention even without continuous power. The DS1963S-F5- operates across a wide temperature range of -40°C to 85°C and is supplied in bulk packaging. This component is commonly utilized in user and product authentication systems.