NXP Semiconductors NTM88J

The NTM88 is a highly integrated tire pressure sensor family and is providing the following features.

Small footprint in a 4 mm x 4 mm package.

Low power consumption at 180 nA tvp (Stand-by current @ 3.0 V, 25 ℃).

Large memory size at 16 kB.

A field-proven dual-axis accelerometer architecture; the XZ axis offers motion detection and tire localization capabilities.

Available in 900 kPa, 1100 kPa and 1500 kPa.

Key features

• QFN 4 x 4 x 1.98 mm package enables visible solder joint for inspection
• 100–900 kPa pressure ranges
• Single axis or Dual axis
• Six multipurpose GPIO pins (including two A/D inputs)

Additional features

• Accelerometer standard or precision tolerances available
• Low-power wake-up timer, free-running counter, and periodic reset are 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 (1k for NXP coefficients, 15 k for user applications and NXP firmware libraries)
• Internal 315/434 MHz RF transmitter
• Internal 125 kHz LF receiver

Applications

• Tire pressure monitoring systems (TPMS)