DS1961S_V01 DALLAS | Alldatasheet

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Dallas, TX 75244-3292 Prepared by: Ken Wendel Reliability Engineering Manager Dallas Semiconductor 4401 South Beltwood Pkwy. Dallas, TX 75244-3292 Email : ken.wendel@dalsemi.com ph: 972-371-3726 fax: 972-371-6016 mbl: 214-435-6610

Conclusion: DS1961S The following qualification successfully meets the quality and reliability standards required of all Dallas Semiconductor products and processes: Module Description: A description of this Module can be found in the product data sheet. You can find the product data sheet at http://dbserv.maxim-ic.com/l_datasheet3.cfm.* Reliability Derating: A module device consists of one or more IC's in a single, upward integrated, package. This package is assembled to include batteries, crystals, and other piece parts that make up the configuration of the Module. Because of either the complexity of the package or the included piece parts, standard high temperature reliability testing is not possible. Therefore, in order to determine the reliability of module products, the reliability of each of the piece parts is individually determined, then summed to determine the reliability of the integrated module product. If there are "n" significant components in the module then: Fr (module) = Failure rate of module Fr(n) = Failure rate of the nth component Failure Rates are reported in FITs (Failures in Time) or MTTF (Mean Time To Failure). The FIT rate is related to MTTF by: MTTF = 1/Fr NOTE: MTTF is frequently used interchangeably with MTBF. The calculated failure rate for this module/assembly is: The parameters used to calculate the module failure rate are as follows: Cf: 60% Ea: 0.7 B: 0 Tu: 25 Vu: 5.5°C Volts In addition, Dallas Semiconductor's continuous reliability monitor program ensures that all outgoing product will continue to meet Maxim's quality and reliability standards. The current status of the reliability monitor program can be viewed at http://www.maxim-ic.com/TechSupport /dsreliability.html.* Module Device: Quantity: MTTF (Yrs): FITs: 6.318096DS1961 1 6.318096Totals:

The reliability data follows. A the start of this data is the module assembly information. This is a description of the module. The next section is the detailed reliability data for each stress found in the qualification / monitor. If there are additional processes or assemblies used as part of this report, a description of each will follow which includes the respective reliability data for that process/ assembly. The reliability data section includes the latest data available. Some of this data may be generic with other packages or products. * Some proprietary products may be excepted from this requirement. Assembly Site: Fastech Body Size: 16.25mm Pin Count: 2 Package Type: iButton F50 Lead Frame: PCB; FR4 Assembly Information: Lead Finsh: Stainless Steel Glob Top: FP4323, Dexter Hysol Die Attach: Underfill FP4527, Dexter Hysol Flammability: UL 94-V0 03030230 toDate Code Range: ELECTRICAL CHARACTERIZATION DESCRIPTION READPOINTCONDITION QUANTITY FAILSDATE CODE 10IEC 1000-4-2 CONTACT 2000 VOLTS 3 0ESD SENSITIVITY PUL'S0230 10IEC 1000-4-2 CONTACT 4000 VOLTS 3 0ESD SENSITIVITY PUL'S0230 10IEC 1000-4-2 CONTACT 8000 VOLTS 3 0ESD SENSITIVITY PUL'S0230 10IEC 1000-4-2 AIR 8000 VOLTS 3 0ESD SENSITIVITY PUL'S0230 10IEC 1000-4-2 AIR 10000 VOLTS 3 0ESD SENSITIVITY PUL'S0230 10IEC 1000-4-2 AIR 15000 VOLTS 3 3ESD SENSITIVITY PUL'S0230 10IEC 1000-4-2 AIR 20000 VOLTS 3 3ESD SENSITIVITY PUL'S0230 6Total: OPERATING LIFE DESCRIPTION READPOINTCONDITION QUANTITY FAILSDATE CODE 1000125C, 6.0 VOLTS 77 0HIGH VOLTAGE LIFE HRS0230 1000125C, 6.0 VOLTS 77 0HIGH VOLTAGE LIFE HRS0303 0Total: TEMPERATURE CYCLE DESCRIPTION READPOINTCONDITION QUANTITY FAILSDATE CODE 1000-55C TO 125C 77 0TEMP CYCLE CYS0240 1000-55C TO 125C 77 0TEMP CYCLE CYS0240 0Total: W/E ENDURANCE AND DATA RET'N DESCRIPTION READPOINTCONDITION QUANTITY FAILSDATE CODE

5085 C , 5.25 VOLTS 77 1WRITE CYCLE STRESS KCYS0230 1000150C 66 0STORAGE LIFE HRS 2085 C , 5.25 VOLTS 77 0WRITE CYCLE STRESS KCYS0303 1000150C 77 0STORAGE LIFE HRS 5085 C , 5.25 VOLTS 77 0WRITE CYCLE STRESS KCYS0303 1000150C 77 2STORAGE LIFE HRS 5025 C, 5.25 VOLTS 77 0WRITE CYCLE STRESS KCYS0303 1000150C 77 0STORAGE LIFE HRS 4025 C, 5.25 VOLTS 77 0WRITE CYCLE STRESS KCYS0303 1000150C 77 1STORAGE LIFE HRS 4Total: