Texas Instruments FPTVEH Radio Frequency Identification Transponder User Manual 11 09 05 700
Texas Instruments Inc Radio Frequency Identification Transponder 11 09 05 700
Contents
- 1. Hardware Specification
- 2. Software Specification
Hardware Specification
A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION Originator: Phillip LaCroix Effective Date: July 14, 1999 TEXAS INSTRUMENTS TIRIS SPECIFICATION Internal Data Hardware Specification for LUHF Vehicle Transponder (U.S.) RI-TRP-VUSA PRINTED COPIES OF THIS SPECIFICATION ARE NOT CONTROLLED DOCUMENTS. VERIFY THEIR CORRECT REVISION BEFORE USING. Revision: Approval: Approval: Function: Engineering Function: Name: Loek D’Hont Name: Date: Date: RI-TRP-VUSA – Hardware Specification Operations Paul Angelo Page 1 of 20 Date: Approval: Function: Name: Date Quality Larry Vidal 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Revision: TIRIS SPECIFICATION Internal Data TABLE OF CONTENTS 1. INTRODUCTION … … … … … … … … … … … … … … … … … … … … … … … … … … … … … ..… ..… ...4 1.1 SCOPE..........................................................................................................................4 1.2 APPLICABLE DOCUMENTS ...............................................................................................4 1.3 DEFINITIONS, ACRONYMS AND ABBREVIATIONS .................................................................5 2. FUNCTIONAL AND OPERATIONAL REQUIREMENTS … … … … … … … … … … … … … .6 2.1 SYSTEM OVERVIEW........................................................................................................6 3. PERFORMANCE REQUIREMENTS ..… … … … … … … … … … … … … … … … … … … … … .8 3.1 PHYSICAL CHARACTERISTICS ..........................................................................................8 3.1.1 Dimensions...........................................................................................................8 3.1.2 Weight ..................................................................................................................8 3.1.3 Housing ................................................................................................................8 3.1.4 Battery..................................................................................................................8 3.1.5 Transponder Mounting ..........................................................................................8 3.2 ELECTRICAL CHARACTERISTICS .......................................................................................8 3.2.1 Radio Frequency Characteristics - Downlink .........................................................8 3.2.2 Radio Frequency Characteristics - Uplink..............................................................9 3.2.3 Transponder data ............................................................................................... 10 3.2.4 Processor Characteristics ................................................................................... 10 3.2.5 Current Consumption Characteristics.................................................................. 11 3.2.6 Operation at Temperature Extremes ................................................................... 11 4. 4.1 4.1.1 4.1.2 4.2 5. 5.1 5.2 5.3 5.4 6. 6.1 7. 7.1 7.2 INTERFACE REQUIREMENTS … … … … … … … … … … … … … … … … … … … … … … … ..12 DISPENSER CONTROLLER BOARD INTERFACES ............................................................... 12 Downlink message format (poll) .......................................................................... 12 Uplink message format (response)...................................................................... 12 PROGRAMMING STATION INTERFACES ............................................................................ 12 ELECTROMAGNETIC INTERFERENCE REQUIREMENTS … … … … … … … … … … … 13 GENERAL .................................................................................................................... 13 RADIATED EMISSION..................................................................................................... 13 RADIATED SUSCEPTIBILITY ............................................................................................ 13 ELECTRIC / MAGNETIC FIELD DAMAGE SUSCEPTIBILITY .................................................... 13 REGULATORY REQUIREMENTS … … … … … … … … … … … … … … … … … … … … … … .11 FCC REQUIREMENTS ................................................................................................... 14 QUALITY ASSURANCE PROVISIONS… … … … … … … … … … … … … … … … … … … … ..15 INSPECTION................................................................................................................. 15 TESTING ..................................................................................................................... 15 RI-TRP-VUSA – Hardware Specification Page 2 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Internal Data Revision: TIRIS SPECIFICATION 7.3 MATERIALS.................................................................................................................. 15 7.3.1 Toxic Products and Formulations ........................................................................ 15 7.3.2 Workmanship...................................................................................................... 15 7.4 RELIABILITY REQUIREMENTS ......................................................................................... 16 7.4.1 Reliability Performance ....................................................................................... 16 7.5 ENVIRONMENTAL REQUIREMENTS .................................................................................. 16 8. PREPARATION FOR DELIVERY … … … … … … … … … … … … … … … … … … … … … … … … … 18 8.1 PACKING AND PACKAGING............................................................................................. 18 8.2 ELECTROSTATIC (ES) PRPTECTION ............................................................................... 18 9. BATTERY LIFE CALCULATION … … … … … … … … … … … … … … … … … … … … … … ...19 RI-TRP-VUSA – Hardware Specification Page 3 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Revision: TIRIS SPECIFICATION Internal Data 1. INTRODUCTION 1.1 SCOPE This document describes the implementation of the FCC compliant Vehicle Transponder for the ARC customer identification system. The scope of this document includes the performance requirements for the U.S. vehicle transponder and the interface definition between the transponder and other major assemblies in the ARC system. If anything in this document is ambiguous or incorrect, it should be immediately reported to the Project Managers for the ARC Team, and corrected. The document should then be approved by all the concerned individuals on the cover page and redistributed to all parties involved. 1.2 APPLICABLE DOCUMENTS The hierarchy of documentation pertaining to the ARC system is depicted below. As this table appears in each of the documents, it is important that revisions to any document in the family be reflected in this table. Document Number TIRIS2001 06-01-02-700 11-09-05-702 11-09-05-703 11-09-05-700 11-09-05-701 11-09-05-704 Document Title Mobil Speedpass System Customer Requirements Product Specification ARC System Specification for Retail Fueling Applications ARC Digital Control Board Hardware Specification - RI-CTL-DCUA ARC UHF Receiver Daughter-Board Specification (US) - RI-RFM-HRUA Hardware Specification for LUHF Vehicle Transponder (U.S.) Software Specification for LUHF Vehicle Transponder (U.S.) ARC LUHF Vehicle Transponder Programmer Specification ARC System Qualification Test Procedure & Manufacturing / QA/QC Procedures per TQM Standards. FCC Part 15, Class B RI-TRP-VUSA – Hardware Specification Page 4 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Revision: TIRIS SPECIFICATION Internal Data 1.3 DEFINITIONS, ACRONYMS, AND ABBREVIATIONS ARC ASK DCB DST ES ETSI FCC FSK IPC LF MTBF PLL POS UHF Uplink Downlink Automatic Recognition of Consumers Amplitude Shift Keying Digital Control Board Digital Signature Transponder Electrostatic European Telecommunication Standards Institute Federal Communications Commission Frequency Shift Keying Interconnecting and Packaging Electronic Circuits Low Frequency Mean Time Between Failure Phase Locked Loop Point of Sale Ultra High Frequency RF Data Transmission from the Transponder to the Reader RF Data Transmission from the Reader to the Transponder RI-TRP-VUSA – Hardware Specification Page 5 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Internal Data 2. Revision: TIRIS SPECIFICATION FUNCTIONAL AND OPERATIONAL REQUIREMENTS The ARC system, when installed in a fuel dispenser which offers pay-at-the-pump functionality, provides hands-free identification of a customer and/or the customer’s vehicle. The system offers pay-at-the-pump convenience, without requiring the insertion of a credit card or any keypad entries. The U.S. Vehicle Transponder is the component of the system placed in the customer's vehicle. When activated by a ARC dispenser, the transponder provides identification and authentication data via a radio frequency link to the dispenser. An overview of the complete ARC system is provided in the ARC System Specification, 06-01-02-700. 2.1 SYSTEM OVERVIEW An overview of the U.S. vehicle transponder is depicted in Figure 2-1 below. The major functional blocks of the transponder are the downlink network, the processor, and the uplink network. RI-TRP-VUSA – Hardware Specification Page 6 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Revision: TIRIS SPECIFICATION Internal Data D igital C o ntroller Board LF Downlink Downlink Network UHF Uplink Data Processing and Storage Uplink Network L U H F V e h ic le T ra n s p o n d e r Figure 2-1. U.S. Vehicle Transponder Block Diagram. RI-TRP-VUSA – Hardware Specification Page 7 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Internal Data 3. Revision: TIRIS SPECIFICATION PERFORMANCE REQUIREMENTS Top-level customer specific system performance requirements are defined in the applicable Customer Requirements Product Specifications detailed in Section 1.2. This section augments and clarifies those requirements pertaining to the vehicle transponder, as appropriate. 3.1 PHYSICAL CHARACTERISTICS 3.1.1 Dimensions The transponder shall be fully contained within a 58.mm x 44.5mm x 24.mm space. The maximum dimensions of the transponder shall not exceed this space in any direction. 3.1.2 Weight The transponder shall weigh no more than 0.5 lbs. 3.1.3 Housing The transponder shall be enclosed in a plastic housing, type PC/ASA. 3.1.4 Battery The transponder housing shall provide access to the replaceable battery. The battery is a coin cell, type 2032. The chemistry of the battery will be Li-MnO2 or equivalent approved by Texas Instruments to ensure compliance with this specification. 3.1.5 Transponder Mounting The transponder shall be mounted in the lower middle of the rear window using "hook and loop" or "ball and cup" fasteners with adhesive attachment to the window and to the transponder. 3.2 ELECTRICAL CHARACTERISTICS 3.2.1 Radio Frequency Characteristics - Downlink The transponder shall detect and process signals, which consist of the following properties: RI-TRP-VUSA – Hardware Specification Page 8 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Internal Data Revision: TIRIS SPECIFICATION Property Carrier Frequency Activation Field Strength Level (at the transponder surface) Requirement 134.2 kHz +/- 100 ppm 34 mA/m +/- 7 mA/m, at the optimum transponder orientation At a 45°rotation from optimum, an additional 3dB of field strength is required. The transponder must be separated from any metallic material by a minimum of 3 cm. 500 mA/m Max. Operating Field Strength (at the transponder surface) Modulation Modulation Depth Data Encoding Data Rate Duty Cycle of received FM0 signal ASK > 95 % FM0 1 kbps +/- 100 ppm 50 +/- 5% The transponder shall successfully process signals with these properties while in the operating temperature range specified in section 7.5. 3.2.2 Radio Frequency Characteristics - Uplink The output signals from the transponder shall conform to the following properties: Property Virtual Carrier Frequency Carrier Frequency Accuracy Total Radiated Power Requirement 902.8 MHz +/- 100 ppm -20 dBm +/- 3dB Spurious Emissions Modulation Virtual Carrier Frequency Drift within one Transmission Frequency Deviation Digital high level encoding Digital low level encoding Data Encoding Data Rate Duty Cycle of transmitted signal -36 dBm maximum (250 nW) FSK 10 kHz maximum 40 kHz maximum Positive frequency deviation Negative frequency deviation Manchester 20 kbps +/- 100 ppm 50 +/- 10% RI-TRP-VUSA – Hardware Specification Page 9 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Revision: TIRIS SPECIFICATION Internal Data The transponder shall transmit signals with these properties while in the operating temperature range specified in section 7.5. 3.2.3 Transponder data The transponder shall have the capability of storing data in non-volatile memory. Data may be loaded into the transponder at three possible locations: the transponder manufacturing facility; the transponder distribution center; and at Third Party locations. The following table defines the data that shall be programmed into the transponder, and the facilities where it could be programmed. Data block Transponder Identification Number (32 bits) Account Data field, for fleet identification (5 bits) DST data, up to 32 unique keys (40 bits each) Key activation data, to indicate programmed key Programmable at Factory Yes Programmable at Distribution Center Yes Programmable by Third Party No Yes Yes Yes Yes Yes No Yes Yes Yes Any data block may be programmed one time only. The DST keys shall be stored in such a way that they may not be read from the transponder once programmed. 3.2.4 Processor Characteristics The transponder processor is a dedicated microcontroller capable of operating at 1 MIPS. The processor includes a crystal clock operating at 4 MHz +/- 100 ppm over the full temperature range of the transponder. This tolerance directly influences the accuracy of the output data rate of the uplink data. Refer to the ARC Vehicle Transponder Software Specification, 11-09-05-701, for detailed requirements for the transponder software. The processor shall have two modes, Sleep and Active. The transponder shall go into its Sleep mode after exiting a RF field with the defined RF characteristics below the maximum RF level of an incoming data 0. In Sleep mode the transponder will consume a minimal amount of current to enhance battery life. The transponder will wake-up and go into an Active mode upon entering a RF field with the defined RF characteristics above the minimum RF level of an incoming Data 1. Once activated, the transponder will attempt to acquire and respond to incoming polls or else go back into Sleep mode if the RF field goes away. The processor executes tasks sequentially, and will only perform half-duplex communication. For a poll to be recognized by the processor, sufficient time must be allowed following the previous response. The first unique DST Challenge poll will cause the processor to save the challenge data and RI-TRP-VUSA – Hardware Specification Page 10 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Internal Data Revision: TIRIS SPECIFICATION execute the DST algorithm. While executing the DST algorithm, the processor will not respond to any polls. The processor will response to subsequent identical DST Challenge polls using the calculated DST Challenge Response. 3.2.5 Current Consumption Characteristics The transponder shall achieve a minimum battery life of three years. The battery life shall be defined through the functional temperature range with the defined number of fueling transactions per week. Exposure to temperatures in excess of the defined functional temperature range will reduce the battery life. Fueling Transactions Battery Voltage, typical Battery Voltage, allowable operating range Battery Capacity Current load (Sleep) 5 per week 3V (depends on battery type) 2.5 V to 3.5 V ~210 mAH < 4 uA average over specified temperature range < 5 mA Current load (Active) 3.2.6 Operation at Temperature Extremes The transponder may not be functional outside of the defined operating temperature range. The transponder shall return to full functionality after returning to the operating temperature range from the storage temperature range, provided that there is still sufficient battery capacity available after storage. The operating and storage temperature ranges are defined in section 7.5. RI-TRP-VUSA – Hardware Specification Page 11 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Internal Data 4. Revision: TIRIS SPECIFICATION INTERFACE REQUIREMENTS This section defines the interfaces between vehicle transponder and relevant subsystems of the ARC system. 4.1 DIGITAL CONTROL BOARD INTERFACES 4.1.1 Downlink message format (poll) The Dispenser Controller Board communicates with the vehicle transponder by sending poll messages in the downlink channel. The format of the downlink poll messages are defined in the ARC Vehicle Transponder Software Specification, 11-09-05-701. 4.1.2 Uplink message format (response) The vehicle transponder communicates with the Dispenser Controller board by sending response messages in the uplink channel. The format of the downlink poll messages are defined in the ARC Vehicle Transponder Software Specification, 11-09-05-701. 4.2 PROGRAMMING STATION INTERFACES The programming interface shall be in accordance with Vehicle Transponder Programming Specification, 11-09-05-704. RI-TRP-VUSA – Hardware Specification Page 12 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Revision: TIRIS SPECIFICATION Internal Data 5. 5.1 ELECTROMAGNETIC INTERFERENCE REQUIREMENTS GENERAL The design requirements for the control of the electromagnetic emission and susceptibility characteristics of the U.S. vehicle transponder shall be in accordance with MIL-STD-461D Requirements for Control of Electromagnetic Interference Emissions and Susceptibility. 5.2 RADIATED EMISSION Requirement RE101 RE102 RE103 5.3 RADIATED SUSCEPTIBILITY Requirement RS101 RS103 5.4 Description Radiated Emissions, Magnetic Field, 30 Hz to 100 kHz for a Land Mobile platform. Radiated Emissions, Electric Field, 10 kHz to 18 GHz. Except for 903 +/1 MHz, where a maximum of - 10 dBm may be present for a Land Mobile platform. Radiated Emissions, Antenna Spurious and harmonic Output, 10 kHz to 40 GHz. Except for 903 +/- 1 MHz, where a maximum of - 10 dBm may be present for a Land Mobile platform. Description Radiated Susceptibility, Magnetic Field, 30 Hz to 100 kHz. A maximum field strength of 27 mA/m is allowable. Radiated Susceptibility, Electric Field, 10 kHz to 40 GHz.. Except for 10kHz to 200 kHz, where a field strength of 2.7 mA/m is allowable. ELECTRIC / MAGNETIC FIELD DAMAGE SUSCEPTIBILITY The transponder shall withstand, without permanent damage, a field of 1 A/m in the band 0 - 200 kHz, excluding 133 -135 kHz, or a field of 200 V/m in any other band. RI-TRP-VUSA – Hardware Specification Page 13 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Internal Data 6. 6.1 Revision: TIRIS SPECIFICATION REGULATORY REQUIREMENTS FCC REQUIREMENTS The vehicle transponder shall comply with FCC Regulations, Part 15, Class B. RI-TRP-VUSA – Hardware Specification Page 14 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Internal Data 7. Revision: TIRIS SPECIFICATION QUALITY ASSURANCE PROVISIONS The U.S. vehicle transponder shall be designed and manufactured under a quality assurance program equivalent to ISO 9001. This does not imply that the suppliers of the design or manufacturers shall be certified to ISO 9001 but are capable of and have withstood an external audit by an independent auditor. 7.1 INSPECTION The transponder shall be visually inspected by the supplier. The transponder shall be inspected for compliance to the Institute for Interconnecting and Packaging Electronic Circuits (IPC) or equivalent standard. This inspection shall be sufficient to assure performance to the requirements of this specification, workmanship and electrical interface. 7.2 TESTING The transponder shall be tested for compliance to the performance requirement of paragraphs 3 through 6. Test procedures shall be reviewed and approved prior to the acceptance of product. 7.3 MATERIALS Materials chosen by the supplier shall be in accordance with IPC or equivalent standards and practices, sufficient to assure performance to the requirements of this specification. External parts, elements or coatings including marking shall be inherently non-nutrient to fungus and do not blister, crack, outgas, soften, flow or exhibit defects that adversely affect storage, operation, or assembly. 7.3.1 Toxic Products and Formulations No products or formulations, which are known to be toxic or harmful, shall be used without approval by Texas Instruments Incorporated. 7.3.2 Workmanship Workmanship evidenced in the construction of the vehicle transponder shall be inspected for compliance to the Institute for Interconnecting and Packaging Electronic Circuits (IPC) or equivalent, RI-TRP-VUSA – Hardware Specification Page 15 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Revision: TIRIS SPECIFICATION Internal Data sufficient to assure performance to the requirements of this specification to the extremes of the environments specified herein. 7.4 RELIABILITY REQUIREMENTS 7.4.1 Reliability Performance The reliability of the transponder shall be designed to meet or exceed the design goals documented in the table below. The reliability prediction technique shall utilize MIL-HDBK-217 or Bell Core, Method 1, at 25 degrees C, as a guideline. Module MTBF * (hours, Repairable) LUHF Vehicle Transponder (excluding Battery) MTTF ** (hours, Nonrepairable) Survival Probability (3 years) 1,000,000 .974 Table 7-1. Reliability Requirements MTBF - Mean Time Between Failure which are repairable. ** MTTF - Mean Time to Failure which are non-repairable. 7.5 ENVIRONMENTAL REQUIREMENTS The U.S. vehicle transponder is to meet applicable sections defined in the applicable Customer Requirements Product Specifications detailed in Section 1.2. The critical operating environmental guidelines are as follows: Operating temperature: Operating temperature tests in accordance with MIL-STD-202F, method 102A, temperature cycling or equivalent, using the following parameters: -10 to +85 degrees C, duration 500 hours. Transponder may have degraded operational performance to -20 degrees C. Storage temperature (battery removed): Storage temperate tests in accordance with MIL-STD810D, method 502.2, using the following parameters: Low temperature - 40 degrees C 1000 hours, High temperature 104 degrees C, 1000 hours. Shock Environment: Shock test performed in accordance with Mil-STD-810D, Method 516.3 or equivalent using the following parameters: 30 G's at 10 mS, half sinusoidal wave, 6 axes. RI-TRP-VUSA – Hardware Specification Page 16 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Internal Data Revision: TIRIS SPECIFICATION Vibration Environment: Vibration tests in accordance with MIL-STD-810E, Method 514.4 or equivalent, using the following parameters: 10 to 500 Hz, 10 g peak, 30 minutes sweep, logarithmic. Humidity Environment (battery removed): Humidity tests in accordance with MIL-STD-810D, Method 507.2, procedure III, aggravated screening or equivalent, using the following humidity parameters: 85 percent relative humidity, non-condensing at 85o C, duration 500 hours. Thermal Shock (battery removed): Thermal Shock testing in accordance with MIL-STD-810D, Method 503.2 or equivalent, using the following thermal shock parameters: - 40 to 85 degrees C, 100 cycles duration. Drop: Drop from 1m onto a 1-inch thick maple block, 1 drop per side on all surfaces. Operational functionality and structural integrity shall not be compromised. The battery cover is allowed to fall off of the transponder as long as it is not damaged and can be replaced into the unit. RI-TRP-VUSA – Hardware Specification Page 17 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Internal Data Revision: TIRIS SPECIFICATION 8. PREPARATION FOR DELIVERY 8.1 PACKING AND PACKAGING Preservation, packaging, and packing of system and subsystems to be delivered shall be to the supplier's best commercial practice to prevent deterioration and mechanical damage in shipment and in storage. 8.2 ELECTROSTATIC (ES) PROTECTION The ARC system and subsystems shall meet an ES level of 2000 volts minimum using a standard body model. RI-TRP-VUSA – Hardware Specification Page 18 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Revision: TIRIS SPECIFICATION Internal Data 9. BATTERY LIFE CALCULATION Battery Load Conditions * Standby Conditions Load Current: 2 uA Duration: 100% of time * Active Conditions Duration: 5 transactions / week, assuming 5 minutes / transaction Continuous Load:1 mA Pulsed Cycle Load: (* Additional to Continuous Load) Cycle Time: 200 mS Pulse Time: 6 mS Pulsed Load: 4 mA * Temperature: Range: -10C to +85C Hot %: 15% (+85C) Cold %: 15% (-10C) (Operational) * Minimum Operational Voltage: 2.5V * Battery Self Discharge: < 5% / year * Battery Energy:210 mA-Hour Energy Usage per Year *Self Discharge Energy per Year: 10.50 mA-Hour (210 mA-Hour * 5%) *Standby Energy per Year: 17.52 mA-Hours (2 uA * 24 Hours/Day * 365 Days/Year) * Active Energy per Year: RI-TRP-VUSA – Hardware Specification Page 19 of 20 11-09-05-700 A92FPTVEH – Attachment 2 TI PROPRIETARY INFORMATION TEXAS INSTRUMENTS Internal Data Revision: TIRIS SPECIFICATION Continuous: 21.67 mA-Hours (1 mA * [(5 Min/Day)/ (60 Min/Hour)]* 5 Days/Week * 52 Weeks/Year) Pulsed: 2.60 mA-Hours (4 mA * [(6 mS/200 mS * 5 Min/Day)/(60 Min/Hour)] * 5 Days/Week * 52 Weeks/Year) ==================== Total 52.29 mA-Hours/Year Calculated Life: 4.02 Years (210 mA-Hour / 52.29 mA-Hour/Year) RI-TRP-VUSA – Hardware Specification Page 20 of 20 11-09-05-700
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