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BUY DS2505 https://www.utsource.net/itm/p/1482227.html
16K bit Add-Only Memory16K
Description: The DS2505 is a 1-Wire 256-bit add-only memory device that provides a guaranteed unique 64-bit registration number (8-bit family code + 48-bit serial number) and 192 bits of user-programmable EEPROM. Features: Guaranteed Unique 64-Bit Registration Number (8-Bit Family Code + 48-Bit Serial Number) 192 Bits of User-Programmable EEPROM 1-Wire Interface Requires Only a Single Port Pin for Communication Overdrive Mode Reduces Communication Times Operating Voltage Range: 2.8V to 5.25V Operating Temperature Range: -40°C to +85°C ESD Protection Exceeds 2000V Application: The DS2505 is ideal for a variety of applications such as asset tracking, product identification, and access control. It can be used in a variety of systems such as vending machines, security systems, medical devices, and automotive systems. (For reference only)