NXP FXTH87 User guide

NXP
Brand
NXP
Model
FXTH87
Type
User guide

This manual is also suitable for

NXP FXTH87 is a highly integrated tire pressure monitoring system (TPMS) device that provides accurate and reliable tire pressure and temperature data. It is designed for use in a wide range of automotive applications, including passenger cars, light trucks, and heavy-duty vehicles.

The FXTH87 features a small, fully integrated package footprint that enables easy integration into space-constrained applications. It also has a low transmitting power consumption (less than 7 mA Idd) and a large customer memory size (~8-15 kB), which provides flexibility for software development and reduces time to market.

NXP FXTH87 is a highly integrated tire pressure monitoring system (TPMS) device that provides accurate and reliable tire pressure and temperature data. It is designed for use in a wide range of automotive applications, including passenger cars, light trucks, and heavy-duty vehicles.

The FXTH87 features a small, fully integrated package footprint that enables easy integration into space-constrained applications. It also has a low transmitting power consumption (less than 7 mA Idd) and a large customer memory size (~8-15 kB), which provides flexibility for software development and reduces time to market.

FACT SHEET
TPMS FAMILY
TARGET APPLICATIONS
• Tire pressure monitoring systems
• Ultra-low-power wireless sensing
IMPLEMENTATIONS
• Measures dual-axis acceleration to support location of
wheel on the vehicle
• Measures temperature
• Measures battery voltage
• Bi-directional wireless communication
• Measures tire pressure for passenger, light-duly or heavy-
duty vehicles
NXP TPMS SENSORS
NXP’s tire pressure monitoring sensors (TPMS) has a fully
integrated 4 x 4 mm and 7 x 7 mm package footprint.
These are significantly smaller than the previous generation
of QFN packages on the market.
These devices provide:
• Low transmitting power consumption (less than 7 mA Idd)
• Large customer memory size (~8-15 kB)
• Dual-axis accelerometer architecture
NXP’S TPMS SOLUTION INTEGRATES:
• 8-bit MCU
• Pressure sensor
• XZ-axis or Z-axis accelerometer
• 125 kHz LF receiver
• 315–434 MHz RF transmitter
NXP’s portfolio can support cars, light and heavy trucks as
well as buses. These TPMS markets are mainly regulation
driven with new mandates, resulting in significant growth.
NXP continues to produce TPMS products that meet the
latest mandates to accommodate customer requirements.
TPMS SELECTOR GUIDE
Tire Pressure Monitoring Sensors
PRODUCT DIFFERENTIATION
Features Benefits
Small, fully integrated package size Enables small module design
for lighter weight and space-
constrained applications
Dual-axis XZ inertial sensor Enables easier localization capability
Same package height and similar
firmware as QFN 9 x 9 solutions
Easy transition from between
solutions
8–15 kB customer memory/capability
of interfacing with external memory
Flexibility of software development
and time to market
Low RF power consumption Long battery life
High production capacity Secured supply and short lead time
FXTH87 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 ºC to
+125 ºC
Temperature Resolution
(8-bit unsigned)
1 ºC/LSB
Temperature Offset
Accuracy (-20 ºC ≤ TA ≤
70 ºC)
± 3 ºC
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
FXTH87 TPMS FAMILY BLOCK DIAGRAM
7 mm
7 mm
1.98 mm
NTM88 SPECIFICATIONS
Part number
Pressure
Range
(kPa)
Pressure Accuracy
(-40°C <= Ta <=
105°C)
Temperature
Range (°C)
Temperature
Accuracy (-20°C
<= Ta <= 70°C)
Z-axis
Accelerometer
Range (g)
Z-axis Accelerometer
Accuracy (-40°C <=
Ta <= 125°C)
X-axis
Accelerometer
Range (g)
X-axis Accelerometer
Accuracy (-40°C <= Ta
<= +125°C)
Passenger Car and Light Duty Pressure Range with Single X-axis Accelerometer
NTM88H055T1
90 to 930 ±5 -40 to +125 ±3 NA
-80 to +90
±3 @ 0g
NTM88H065T1 -360 to +400
NTM88H075T1 -120 to +520
Passenger Car and Light Duty Pressure Range with Dual XZ-axis Accelerometer – Under Development, contact sales representative for samples
NTM88H135T1
90 to 930 ±5 -40 to +125 ±3
-360 to +400
±3 @ 0g
-80 to +90
±3 @ 0gNTM88H145T1 -80 to +90 -360 to +400
NTM88H155T1 -360 to +400 -360 to +400
Medium Duty Pressure Range with Dual XZ-axis Accelerometer – Under Development, contact sales representative for samples
NTM88J135T1
90 to 1110
90 to 700kPa: ±5
700 to 1110kPa: ±8
-40 to +125 ±3
-360 to +400
±3 @ 0g
-80 to +90
±3 @ 0g
NTM88J145T1 -80 to +90 -360 to +400
NTM88J155T1 -360 to +400 -360 to +400
4 mm
4 mm
1.98 mm
NTM88 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 ºC to
+125 ºC
Temperature Resolution
(8-bit unsigned)
1 ºC/LSB
Temperature Offset
Accuracy (-20 ºC ≤ TA ≤
70 ºC)
± 3 ºC
NTM88 TPMS FAMILY BLOCK DIAGRAM
System
Analog
64-byte
Battery-Backed
RAM
Periodic
Wake-Up Unit
Memories
16 kB Flash
512-byte RAM
Core
Debug
Interfaces
Interrupt
Controller
S08 8-bit 4 MHz
6-ch. 12-bit ADC
Sub-1 GHz Radio Transmitter
26 MHz
Oscillator
VCO/PLL
Packet
Encoder
32-byte
Buffer
315 or 434 MHz ISM band RF Tx
Sensor Measurment
Interface
Pressure Sensor
Accelerometer
Tempreature Sensor
Timers
2-ch. Timer
Periodic Interupt Timer
Low-Power Timer
Feww Running Counter
Interfaces Clocks
Low-, Medium- and
High- Frequency Oscillators
Internal Reference Clocks
Keyboard Interface
6-ch. GPIOs
125 kHz Differential
LF ASK Rx
NTM88 TPMS FAMILY BLOCK DIAGRAM
www.nxp.com
NXP and the NXP logo are trademarks of NXP B.V. All other product or service names are the property of their respective owners.
© 2021 NXP B.V.
Document Number: TPMSFAMSGFS REV 0
FXTH87 SPECIFICATIONS
Part number
Pressure
Range (kPa)
Pressure Accuracy (-40 °C <=
Ta <= 85 °C)
Temperature
Range (°C)
Temperature
Accuracy (-20 °C
<= Ta <= 70 °C)
Z-axis
Accelerometer
Range (g)
Z-axis Accelerometer
Accuracy (-40 °C <=
Ta <= 125 °C)
X-axis
Accelerometer
Range (g)
X-axis Accelerometer
Accuracy (-40 °C <=
Ta <= +125 °C)
Standard Tolerances
FXTH87EH11DT1 100-900 ± 5 kPa from 100 to 900 kPa -40 to 125 ± 3 °C -215 to 305 ± 5g -80 to 90 ± 4g
Precision Tolerances
FXTH87EH116T1 100-900 ± 5 kPa from 100 to 900 kPa -40 to 125 ± 3 °C -215 to 305 ± 3g -80 to 90 ± 3g
Precision Tolerances
FXTH8715116T1 100-1500 ± 20 kPa from 100 to 1500 kPa
-40 to 125 ± 3 °C -215 to 305 ± 3g -80 to 90 ± 3g
FXTH8718116T1 100-1800 ± 25 kPa from 100 to 1500 kPa
High Precision Tolerances
FXTH8715117T1 100-1500 ± 17 kPa -40 to 125 ± 3 °C -210 to 300 ± 3g -80 to 90 ± 3g
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NXP FXTH87 User guide

NXP
Brand
NXP
Model
FXTH87
Type
User guide
This manual is also suitable for

NXP FXTH87 is a highly integrated tire pressure monitoring system (TPMS) device that provides accurate and reliable tire pressure and temperature data. It is designed for use in a wide range of automotive applications, including passenger cars, light trucks, and heavy-duty vehicles.

The FXTH87 features a small, fully integrated package footprint that enables easy integration into space-constrained applications. It also has a low transmitting power consumption (less than 7 mA Idd) and a large customer memory size (~8-15 kB), which provides flexibility for software development and reduces time to market.

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