DS2411P+

Specialized ICS Overview

The DS2411P+ is a silicon serial number device manufactured by Analog Devices Inc./Maxim Integrated, housed in a 6-pin TSOC surface-mount package. It provides a unique, tested 64-bit registration number consisting of an 8-bit family code (01h), a 48-bit serial number, and an 8-bit CRC. The component operates on the 1-Wire protocol with a supply voltage range of 1.5V to 5.25V and supports standard speeds up to 15.4kbps and overdrive modes up to 125kbps. Designed for multidrop networks, it features low standby current below 1μA and includes noise suppression improvements such as controlled slew rates and hysteresis.

Specialized ICS Feature Summary

• Unique 64-bit Registration Number: Includes 8-bit Family Code (01h), 48-bit Serial Number, and 8-bit CRC.
• 1-Wire Interface: Communicates via single-port pin at up to 15.4kbps standard speed or 125kbps overdrive mode.
• Low Power Consumption: Standby supply current is less than 1μA.
• Multidrop Capability: Built-in controller allows multiple devices on a common network with search ROM algorithms.

Specialized ICS Applications

• Electronic product identification and authentication
• Medical sensor tracking and consumable monitoring
• Access control systems requiring unique device identity

Specialized ICS Procurement Notes

Verify RoHS compliance status through official manufacturer documentation, as indicated by the '+' suffix. Confirm package availability and lead times directly with authorized distributors, as stock levels may vary. Ensure the ordering part number matches the required tape and reel or tube packaging format specified in the datasheet.

Specialized ICS Selection Notes

Select the DS2411P+ when an external VCC power supply is required for operation between 1.5V and 5.25V. Choose this variant over the DS2411A if parasite power is insufficient or if the specific electrical characteristics of the VCC-powered version are needed. Ensure the microcontroller interface supports the 1-Wire protocol timing requirements.

Specialized ICS Part Context

The DS2411P+ belongs to the DS2411 series of silicon serial numbers from Analog Devices/Maxim Integrated. It is functionally equivalent to the DS2411A but requires an external VCC input. Other variants include the SOT23-3 packaged DS2411R+ and the flip-chip DS2411X.

Specialized ICS Replacement Considerations

The DS2411A+ serves as a functional alternative that does not require an external VCC supply, operating within a 3V to 5.25V range. Verify compatibility regarding power supply constraints and voltage thresholds before substitution.

Specialized ICS FAQ

What is the composition of the 64-bit registration number?

The 64-bit number consists of an 8-bit family code (01h identifying the DS2411), a unique 48-bit serial number, and an 8-bit CRC calculated using the polynomial x^8 + x^5 + x^4 + 1.

How does the DS2411P+ handle noise in multidrop networks?

It employs an improved 1-Wire front end featuring controlled slew rates for presence pulses, low-pass filtering for falling edges, hysteresis at the switching threshold, and a rising edge hold-off time to ignore glitches.

The device supports standard speed up to 15.4kbps and can operate in overdrive mode at speeds up to 125kbps.