Sensing SolutionsRobust, Reliable Performance FXTH870x TPMS Family Tire Pressure Monitoring Sensors 100-900 kPa Overview Freescales FXTH870s family of tire pressure monitoring sensors (TPMS) is the smallest, fully Target Applications integrated 7 x 7 mm package footprint on the market which is 40% smaller than Freescales Tire pressure monitoring previous-generation QFN 9 x 9 mm package. It also provides the lowest transmitting power systems consumption (less than 8 mA Idd), largest customer memory size (8 kB) and unique dual-axis Ultra low-power wireless accelerometer architecture. Freescales TPMS solution integrates an 8-bit microcontroller sensing (MCU), pressure sensor, XZ-axis or Z-axis accelerometer and RF transmitter. Implementations Freescales portfolio with pressure ranges of 100-450 kPa and 100900 kPa support cars and light trucks TPMS markets. These TPMS markets are mainly regulation driven with new Measures pressure for passenger/light duty vehicles mandates, resulting in significant growth. Freescale continues to produce TPMS products that meet the latest mandates with ease to accommodate customer requirements. Measures dual-axis acceleration Measures temperature FXTH870x TPMS Family Block Diagram Measures battery voltage Xtrinsic FXTH87 TPMS Family Block Diagram Bi-directional communication Core System Memories Sub-1 GHz Radio Transmitter 64-byte Battery-backed 16 kB Flash S08 8-bit 4 MHz 315 or 434 MHz ISM band RF Tx 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 Keyboard Interface Low-, Medium- and 2 ch Timer 6 ch 10-bit ADC High- Frequency Oscillators 6 ch GPIOs Periodic Sensor Measurement Interrupt Internal Interface 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-Offset Accuracy X-Offset Accuracy Part Number Range (kPa) Accuracy (0 C to 70 C) Acceleration Z Range (-40 C to +125 C) X Range (-40 C to +125 C) Standard Tolerances FXTH870502DT1 100450 7 kPa Z -270 g/+ 400 g range 6 g FXTH870511DT1 100450 7 kPa XZ -210 g/+240 g range 5 g -80 g/+90 g range 4 g FXTH870902DT1 100900 10 kPa Z -270 g/+ 400 g range 6 g FXTH870911DT1 100900 10 kPa XZ -210 g/+240 g range 5 g -80 g/+90 g range 4 g FXTH870912DT1 100900 10 kPa XZ -270 g/+ 400 g range 6 g -80 g/+90 g range 4 g Precision Tolerances FXTH8705026T1 100450 7 kPa Z -270 g/+ 400 g range 3 g FXTH8705116T1 100450 7 kPa XZ -210 g/+240 g range 3 g -80 g/+90 g range 3 g FXTH8709026T1 100900 10 kPa Z -270 g/+ 400 g range 3 g FXTH8709116T1 100900 10 kPa XZ -210 g/+240 g range 3 g -80 g/+90 g range 3 g FXTH8709126T1 100900 10 kPa XZ -270 g/+ 400 g range 3 g -80 g/+90 g range 3 g * For precision product availability, please contact your Freescale Sales Representative. Features Common Attributes Voltage Measurement Range 1.8 V to 3.6 V QFN 7 x 7 x 2.2 mm package enables Voltage Resolution (8-bit) 10 mV / LSB visible solder joint for inspection Voltage Accuracy (>2.1 V supply) 100 mV 100450 kPa and 100900 kPa o o Temperature Measurement Range Run Mode -40 C to +125 C pressure ranges o Temperature Resolution (8-bit unsigned) 1 C / LSB Z-axis or dual XZ-axis accelerometers o o o Temperature Offset Accuracy (-20 C TA 70 C) 3 C Accelerometer standard or precision tolerances available Product Differentiation Low-power wake-up timer and periodic Features Benefits reset driven by LFO Smallest, fully integrated package size Enables smallest module design for lighter weight and space-constrained applications Dedicated state machines for reduced Dual-axis XZ inertial sensor Enables easier tire localization capability power consumption Same package height and similar firmware as QFN 9 x 9 solutions Easy transition from QFN 9 x 9 solutions 8-bit MCU/S08 core with SIM, interrupt 8 kB customer memory/capability of interfacing with Flexibility of software development and and debug/monitor external memory time to market 512 Bytes RAM / 16 k Flash (8 k for Lowest RF power consumption Longest battery life Freescale library, 8 k for applications) High production capacity (QFN 7 x 7) Secured supply and short lead time Internal 315/434 MHz RF transmitter Documentation Internal 125 kHz LF receiver Document Number Title Description Six multipurpose GPIO pins (including two A/D inputs) FXTH870xD Tire Pressure Monitor System Standard Tolerance Specification Data Sheet FXTH870x6 Tire Pressure Monitor System Precision Tolerance Specification Data Sheet Product Longevity Program AN4391 Using the FXTH87 Family of LF Receivers for TPMS Application Application Note AN1902 Assembly Guidelines for QFN and DFN Packages Application Note These products are/or may be supported by Freescales Product Longevity Program. Freescale: A Leader in Sensing Solutions For Terms and Conditions and to obtain a 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 Freescale and the Freescale logo are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. All other product or service names are the property of their respective owners. 2015 Freescale Semiconductor, Inc. Document Number: FXTH87A4FS REV 3