DS1971 256-Bit EEPROM iButton

DS1971 256-Bit EEPROM iButton

The DS1971 256-bit EEPROM iButton is a rugged read/write data carrier that identifies and stores relevant information about the product or person to which it is attached. This information can be accessed with minimal hardware: for example, a single port pin of a microcontroller. The DS1971 consists .

Features

§ 256-bit Electrically Erasable Programmable Read Only Memory (EEPROM) communicates with the economy of one signal plus ground § EEPROM organized as one 256-bit page § 64-bit one-time programmable application register is automatically write-protected after programming § Reduces control, address, data, power, and programming signals to a single data pin § 8-bit family code specifies DS1971 communications requirements to reader § Reads and writes over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C § Economically communicates to bus master with a single digital signal at 16.3k bits per .