The DS2411 silicon serial number is a low-cost, electronic registration number with external power supply. It provides an absolutely unique identity that can be determined with a minimal electronic interface (typically, a single port pin of a microcontroller). The DS2411's registration number is a 64-bit ROM that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit family code (01h). Data is transferred serially through the Analog Devices 1-Wire protocol. For the DS2411, an external power supply is required, extending the operating voltage range of the device below typical 1-Wire devices. The DS2411A does not require an external power supply and has a typical 1-Wire operating voltage range. However, it is functionally equivalent to the DS2411, but with differing electrical parameters. Applications * Accessory/Peripheral Identification * Equipment Registration * Module Identification * Network-Node Identification * PCB Identification * Reference Design License Management * Unique, Factory-Lasered and Tested 64-Bit Registration Number (8-Bit Family Code Plus 48-Bit Serial Number Plus 8-Bit CRC Tester); Guaranteed No Two Parts Alike * Standby Current <1µA * Built-In Multidrop Controller Enables Multiple DS2411s to Reside on a Common 1-Wire Network * Multidrop Compatible with Other 1-Wire Products * 8-Bit Family Code Identifies Device as DS2411 to the 1-Wire Master * Low-Cost TSOC, SOT23-3, and Flip-Chip Surface-Mount Packages * Directly Connects to a Single-Port Pin of a Microprocessor and Communicates at up to 15.4kbps * Overdrive Mode Boosts Communication Speed to 125kbps * DS2411 Operating Range: 1.5V to 5.25V (VCC) * DS2411A Operating Range: 3V to 5.25V (noVCC), from -40°C to +85°C https://elecena.pl/product/22302126/silicon-serial-number-with-or-without-v-input 2022-12-25 https://elecena.pl/product/22302126/silicon-serial-number-with-or-without-v-input 2024-03-22