FXTH8715027T1 Ver la hoja de datos (PDF) - Freescale Semiconductor
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FXTH8715027T1 Datasheet PDF : 2 Pages
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Sensing Solutions—Robust, Reliable Performance
FXTH8715 High Pressure
TPMS Family
Tire Pressure Monitoring Sensors 100-1500 kPa
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.
Freescale’s 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
driven by improved safety and fleet management requirements.
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Core
S08 8-bit 4 MHz
Debug
Interfaces
Interrupt
Controller
System
64-byte
Battery-backed
RAM
Periodic
Wake-Up Unit
Temperature
Restart
Memories
16 kB Flash
512-byte RAM
Sub-1 GHz Radio Transmitter
315 or 434 MHz ISM band RF Tx
26 MHz
Oscillator
VCO / PLL
Packet Encoder 32-byte Buffer
Analog
6 ch 10-bit ADC
Sensor Measurement
Interface
Pressure Sensor
Accelerometer
Temperature Sensor
Timers
2 ch Timer
Periodic
Interrupt
Timer
Low-Power
Timer
Interfaces
Keyboard Interface
6 ch GPIOs
125 kHz Differential
LF ASK Rx
Clocks
Low-, Medium- and
High- Frequency
Oscillators
Internal
Reference Clocks
Target Applications
• Tire pressure monitoring
systems
• Ultra low-power wireless
sensing
Implementations
• Measures pressure typical for
heavy duty vehicles (trucks,
buses, construction vehicles)
• Measures dual-axis acceleration
• Measures temperature
• Measures battery voltage
• Bi-directional communication
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