Product Summary

The DS2401+ is a silicon serial number. It is a low-cost, electronic registration number that provides an absolutely unique identity which can be determined with a minimal electronic interface (typically, a single port pin of a microcontroller). The DS2401+ consists of a factory-lasered, 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 via the 1-Wire protocol that requires only a single data lead and a ground return. Power for reading and writing the device is derived from the data line itself with no need for an external power source. The applications of the DS2401+ include: PCB Identification, Network Node ID, Equipment Registration.

Parametrics

DS2401+ absolute maximum ratings: (1)Voltage Range on Any Pin Relative to Ground: -0.5V to +7.0V; (2)Operating Temperature Range: -40℃ to +85℃; (3)Storage Temperature Range: -55℃ to +125℃; (4)Lead Temperature (TO-92, TSOC, SOT-223 only; soldering, 10s): +300℃; (5)Soldering Temperature (reflow) TO-92: +250℃; TSOC, SOT-223: +260℃; Flip Chip +240℃.

Features

DS2401+ features: (1)Unique, Factory-Lasered and Tested 64-Bit Registration Number (8-Bit Family Code + 48-Bit Serial Number + 8-Bit CRC Tester); Guaranteed No Two Parts Alike; (2)Built-In Multidrop Controller Ensures Compatibility with Other 1-Wire Net Products; (3)8-Bit Family Code Specifies DS2401 Communications Requirements to Reader; (4)Presence Pulse Acknowledges When the Reader First Applies Voltage; (5)Low-Cost TO-92, SOT-223, and TSOC Surface-Mount Packages; (6)Reduces Control, Address, Data, and Power to a Single Pin; (7)Zero Standby Power Required; (8)Directly Connects to a Single Port Pin of a Microprocessor and Communicates at Up to 16.3kbps.

Diagrams

DS2401+ diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS2401+
DS2401+
Maxim Integrated Products
Serial Number Registration Silicon Serial Number
Data Sheet
0-1: $0.98
1-25: $0.66
25-50: $0.48
50-100: $0.47
DS2401+T&R
DS2401+T&R
Maxim Integrated Products
Serial Number Registration Silicon Serial Number
Data Sheet
0-1660: $0.42
1660-2000: $0.42