FXTH871502DT1

FXTH8715 TPMS Family Block Diagram
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
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.
Xtrinsic FXTH87 TPMS Family Block Diagram
Timers
System Memories
Interfaces Clocks
Low-, Medium- and
High- Frequency
Oscillators
Internal
Reference Clocks
Analog
Debug
Interfaces
S08 8-bit 4 MHz
Sub-1 GHz Radio Transmitter
Packet Encoder
26 MHz
Oscillator
VCO / PLL
32-byte Buffer
315 or 434 MHz ISM band RF Tx
Periodic
Interrupt
Timer
2 ch Timer
125 kHz Differential
LF ASK Rx
6 ch GPIOs
Keyboard Interface
64-byte
Battery-backed
RAM
Periodic
Wake-Up Unit
Low-Power
Timer
512-byte RAM
16 kB Flash
Sensor Measurement
Interface
6 ch 10-bit ADC
Interrupt
Controller
Core
Temperature
Restart
Accelerometer
Pressure Sensor
Temperature Sensor
Common Attributes
Voltage Measurement Range 1.8 V to 3.6 V
Voltage Resolution (8-bit) 10 mV / LSB
Voltage Accuracy (>2.1 V supply) ±100 mV
Temperature Measurement Range Run Mode -40
o
C to +125
o
C
Temperature Resolution (8-bit unsigned) 1
o
C / LSB
Temperature Offset Accuracy (-20
o
C ≤ TA ≤ 70
o
C) ±3
o
C
Product Differentiation
Features Benefits
Tightest offset pressure accuracy Enables predictive system implementation
Smallest package size
Enables smallest module design for lighter weight
and space-constrained applications
Dual-axis XZ inertial sensor Enables easier tire localization capability
8 kB customer memory/capability of interfacing with external
memory
Flexibility of software development and time to
market
Lowest RF power consumption Longest battery life
High production capacity (QFN 7 x 7) Secured supply and short lead time
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
Product Specifications
Freescale: A Leader in Sensing Solutions
Expanding on more than 35 years of sensor innovation, Freescale sensing solutions are
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.
Product Longevity Program
These products are/or may be supported
by Freescale’s Product Longevity Program.
For Terms and Conditions and to obtain a
list of available products please see:
Freescale.com/productlongevity
Standard
Part Number
P-cell
Range (kPa)
Pressure Offset
Accuracy (0° C to 70° C)
Axis of
Acceleration
Z Range
Sensitivity
Z-Offset Accuracy
(-40° C to +125° C X Range
X-Offset Accuracy
(-40° C to +125° C)
Standard Tolerances
FXTH871502DT1 100-1500 ±20 kPa Z
-270 g/+350 g range,
40 g sensitivity
±6 g
FXTH871511DT1
100-1500 ±20 kPa XZ
-210 g/+240 g range,
60 g sensitivity
±5 g
-70 g/+80 g range,
10 g sensitivity
±4 g
Precision Tolerances
FXTH8715026T1 100-1500 ±20 kPa Z
-270 g/+350 g range,
40 g sensitivity
±3 g
FXTH8715116T1 100-1500 ±20 kPa XZ
-210 g/+240 g range,
60 g sensitivity
±3 g
-70 g/+80 g range,
10 g sensitivity
±3 g
High Precision Tolerances
FXTH8715027T1 100-1500 ±17 kPa Z
-270 g/+350 g range,
40 g sensitivity
±3 g
FXTH8715117T1 100-1500 ±17 kPa XZ
-210 g/+240 g range,
60 g sensitivity
±3 g
-70 g/+80 g range,
10 g sensitivity
±3 g
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)
Documentation
Document Number Title Description
FXTH871xD Tire Pressure Monitor Sensor Standard Tolerance Specification Data Sheet
FXTH871x6 Tire Pressure Monitor Sensor Precision Tolerance Specification Data Sheet
FXTH871x7 Tire Pressure Monitor Sensor for High Precision Data Sheet
AN4391 Using the FXTH87 Family of LF Receivers for TPMS Application Application Note
AN1902 Assembly Guidelines for QFN and DFN Packages Application Note

FXTH871502DT1

Mfr. #:
Manufacturer:
NXP / Freescale
Description:
Board Mount Pressure Sensors TPMS 7X7 1500kPa Z Axis
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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