NXP Semiconductors
UM11227
NTM88 family of tire pressure monitor sensors
UM11227 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2020. All rights reserved.
User manual Rev. 6 — 24 April 2020
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• Flexible 125 kHz LF receiver:
– Capability for ASK or OOK demodulation
– Automated Manchester decoding
• Two channel timer / pulse-width module
• Slave SPI to support host access to internal peripherals, registers, and memory
• Seven GPIOs with programmable multiplexing to support software development,
external ADC input, timer, SPI, and wake-up
• Qualified in compliance with AEC-Q100, Rev. H
• Long battery service life
• Temperature sensor
• Voltage reference measured by ADC10
• Six-channel, 10-bit analog-to-digital converter (ADC10) with two external I/O inputs
• Internal 315-/434-M Hz RF transmitter
– External crystal oscillator
– PLL-based output with fractional-n divider
– OOK and FSK modulation capability
– Programmable data rate generator
– Manchester, Bi-Phase, or NRZ data encoding
– 256-bit RF data buffer variable length interrupt
– Direct access to RF transmitter from MCU for unique formats
– Low-power consumption
• Differential input LF detector/decoder on independent signal pins
• Real-time Interrupt driven by LFO with intervals of 2, 4, 8, 16, 32, 64, or 128 ms
• Free-running counter, low-power, wake up timer and periodic reset driven by LFO
• Watchdog timeout with selectable times and clock sources
• Two-channel general-purpose timer/PWM module (TPM1)
• Internal oscillators
– MCU bus clock of 0.5, 1, 2, and 4 MHz (1, 2, 4, and 8 MHz HFO)
– Low frequency, low-power time clock (LFO) with 1 ms period
– Medium frequency, controller clock (MFO) of 8 μs period
• Low-voltage detection
4 Configuration options
Table 1. Ordering information
PackageType number
Name Description Version
NTM88Hxx5 HQFN24 Plastic thermal enhanced quad flat package; no leads, 0.1 dimple wettable
flank; 24 terminals; 0.5 mm pitch, 4 mm x 4 mm x 1.98 mm body
SOT1931-1(D)
4.1 Electronic encoding - "CodeF"
Consult the appropriate NTM88 product data sheet for a description of the CodeF
traceability which allows the user to extract:
• For devices programmed by NXP with an embedded firmware, configuration values
holding the firmware library used for final test
• Accelerometer variant type
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