FEATURES
Overview
Freescale’s 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% smaller footprint than Freescale’s previous-generation of SOIC 20 package developed for truck applications. It also provides the lowest transmitting power consumption (less than 8 mA Idd), largest customer memory size (8 kB) currently available and unique dual-axis accelerometer architecture. Freescale’s TPMS solution integrates an 8-bit microcontroller (MCU), pressure sensor, XZ-axis or Z-axis accelerometer and RF transmitter.
Features
• QFN 7 x 7 x 2.2 mm package enables visible solder joint for inspection
• 100–1500 kPa pressure range
• Z-axis or dual XZ-axis accelerometers
• Accelerometer standard or precision tolerances available
• High precision tolerance available for pressure
• Low-power wake-up timer and periodic reset driven by LFO
• Dedicated state machines for reduced power consumption
• 8-bit MCU/S08 core with SIM, interrupt and debug/monitor
• 512 Bytes RAM / 16 k Flash (8 k for Freescale library, 8 k for applications)
• Internal 315/434 MHz RF transmitter
• Internal 125 kHz LF receiver
• Six multipurpose GPIO pins (including two A/D inputs)
Target Applications
• Tire pressure monitoring systems
• Ultra low-power wireless sensing
NXP Semiconductors enables secure connections and infrastructure for a smarter world, advancing solutions that make lives easier, better and safer. As the world leader in secure connectivity solutions for embedded applications, NXP is driving innovation in the secure connected vehicle, end-to-end security & privacy and smart connected solutions markets. Built on more than 60 years of combined experience and expertise, the company has 45,000 employees in more than 35 countries.
Freescale Semiconductor has been acquired by NXP Semiconductor. Freescale Semiconductor parts are now a part of the NXP family (Dec 2015).