Sensing SolutionsRobust, Reliable Performance FXTH8715 High Pressure TPMS Family Tire Pressure Monitoring Sensors 100-1500 kPa Target Applications Overview Tire pressure monitoring systems Freescales FXTH8715 high pressure family of tire pressure monitoring sensors (TPMS) is highly integrated with the smallest 7 x 7 mm package footprint on the market which has a 63% Ultra low-power wireless sensing smaller footprint than Freescales previous-generation of SOIC 20 package developed for truck applications. It also provides the lowest transmitting power consumption (less than 8 mA Idd), Implementations largest customer memory size (8 kB) currently available and unique dual-axis accelerometer Measures pressure typical for architecture. Freescales TPMS solution integrates an 8-bit microcontroller (MCU), pressure heavy duty vehicles (trucks, sensor, XZ-axis or Z-axis accelerometer and RF transmitter. buses, construction vehicles) Measures dual-axis acceleration Freescales portfolio with pressure ranges of 100-1500 kPa support s medium and heavy duty trucks, buses and construction vehicles for TPMS markets. These TPMS markets are mainly Measures temperature driven by improved safety and fleet management requirements. Measures battery voltage Bi-directional communication FXTH8715 TPMS Family Block Diagram Xtrinsic FXTH87 TPMS Family Block Diagram Core System Memories Sub-1 GHz Radio Transmitter 64-byte Battery-backed 16 kB Flash 315 or 434 MHz ISM band RF Tx S08 8-bit 4 MHz RAM Periodic 512-byte RAM Wake-Up Unit Debug Interrupt 26 MHz VCO / PLL Interfaces Controller Oscillator Temperature Restart Packet Encoder 32-byte Buffer Analog Timers Interfaces Clocks Low-, Medium- and Keyboard Interface 2 ch Timer 6 ch 10-bit ADC High- Frequency Oscillators 6 ch GPIOs Periodic Sensor Measurement Interrupt Interface Internal Timer Reference Clocks 125 kHz Differential Pressure Sensor LF ASK Rx Low-Power Timer Accelerometer Temperature SensorProduct Specifications Standard P-cell Pressure Offset Axis of Z Range Z-Offset Accuracy X-Offset Accuracy Part Number Range (kPa) Accuracy (0 C to 70 C) Acceleration Sensitivity (-40 C to +125 C X Range (-40 C to +125 C) Standard Tolerances -270 g/+350 g range, FXTH871502DT1 100-1500 20 kPa Z 6 g 40 g sensitivity -210 g/+240 g range, -70 g/+80 g range, FXTH871511DT1 100-1500 20 kPa XZ 5 g 4 g 60 g sensitivity 10 g sensitivity Precision Tolerances -270 g/+350 g range, FXTH8715026T1 100-1500 20 kPa Z 3 g 40 g sensitivity -210 g/+240 g range, -70 g/+80 g range, FXTH8715116T1 100-1500 20 kPa XZ 3 g 3 g 60 g sensitivity 10 g sensitivity High Precision Tolerances -270 g/+350 g range, FXTH8715027T1 100-1500 17 kPa Z 3 g 40 g sensitivity -210 g/+240 g range, -70 g/+80 g range, FXTH8715117T1 100-1500 17 kPa XZ 3 g 3 g 60 g sensitivity 10 g sensitivity Features Common Attributes QFN 7 x 7 x 2.2 mm package enables Voltage Measurement Range 1.8 V to 3.6 V visible solder joint for inspection Voltage Resolution (8-bit) 10 mV / LSB 1001500 kPa pressure range Voltage Accuracy (>2.1 V supply) 100 mV o o Temperature Measurement Range Run Mode -40 C to +125 C Z-axis or dual XZ-axis accelerometers o Temperature Resolution (8-bit unsigned) 1 C / LSB Accelerometer standard or precision o o o Temperature Offset Accuracy (-20 C TA 70 C) 3 C tolerances available High precision tolerance available for Product Differentiation pressure Features Benefits Low-power wake-up timer and periodic Tightest offset pressure accuracy Enables predictive system implementation reset driven by LFO Enables smallest module design for lighter weight Smallest package size Dedicated state machines for reduced and space-constrained applications power consumption Dual-axis XZ inertial sensor Enables easier tire localization capability 8-bit MCU/S08 core with SIM, interrupt Flexibility of software development and time to 8 kB customer memory/capability of interfacing with external memory market and debug/monitor Lowest RF power consumption Longest battery life 512 Bytes RAM / 16 k Flash (8 k for High production capacity (QFN 7 x 7) Secured supply and short lead time Freescale library, 8 k for applications) Internal 315/434 MHz RF transmitter Documentation Internal 125 kHz LF receiver Document Number Title Description Six multipurpose GPIO pins (including FXTH871xD Tire Pressure Monitor Sensor Standard Tolerance Specification Data Sheet two A/D inputs) FXTH871x6 Tire Pressure Monitor Sensor Precision Tolerance Specification Data Sheet FXTH871x7 Tire Pressure Monitor Sensor for High Precision Data Sheet Product Longevity Program AN4391 Using the FXTH87 Family of LF Receivers for TPMS Application Application Note These products are/or may be supported AN1902 Assembly Guidelines for QFN and DFN Packages Application Note by Freescales Product Longevity Program. For Terms and Conditions and to obtain a Freescale: A Leader in Sensing Solutions list of available products please see: Expanding on more than 35 years of sensor innovation, Freescale sensing solutions are Freescale.com/productlongevity designed with the right combination of high-performance sensing capability, processing capacity and customizable software to help deliver smart, differentiated sensing applications. With these sensing solutions, our vision is to offer a diverse and differentiated product portfolio to meet the expanding needs of the automotive, consumer and industrial segments. Freescale sensing solutions offer ideal blends of functionality and intelligence designed to help our customers differentiate and win in highly competitive market. For more information, visit freescale.com/TPMS and freescale.com/pressure Freescale and the Freescale logo are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. SMARTMOS is a trademark of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. 2015 Freescale Semiconductor, Inc Document Number: 1500FXTH87FS REV 0