NTM88 family of tire pressure monitor sensors User manual
■ The NTM88 is a small (4 mm x 4 mm x 1.98 mm), fully integrated tire pressure monitoring sensor (TPMS). It also provides low transmitting power consumption, large customer memory size, and a choice of either dual- or single-axis accelerometer architecture. The NTM88 TPMS solution integrates an 8-bit microcontroller (MCU), pressure sensor, accelerometer, and RF transmitter.
● Features and benefits：
■ Optional pressure ranges
■ Optional single- or dual-axis accelerometer ranges
■ Transducer measurement interfaces with low-power AFE:
◆ 10-bit compensated pressure sense element
◆ 10-bit compensated accelerometers
◆ 8-bit compensated internal device temperature measurement
◆ 8-bit compensated internal device voltage measurement
◆ Two I/O pins can be used for external signals
■ 8-bit S08 compact instruction set controller:
◆ 64 bytes low-power “always on“ NVM parameter registers
◆ 512 bytes SRAM
◆ 16 kB flash memory (512 bytes reserved for NXP coefficients)
◆ Family of NXP firmware libraries available via royalty-free license
■ Programmable RF transmitter
◆ Characterized for RF carrier typical of 315 MHz or 434 MHz
◆ Characterized for FSK in ~3 kHz increments or OOK modulation
◆ Characterized for baud rate examples of 9.6 kbp/s, 19.2 kbp/s, and 38.4 kbp/s
■ Flexible 125 kHz LF receiver:
◆ Capability for ASK or OOK demodulation
◆ Automated Manchester decoding
■ Two channel timer / pulse-width module
■ Client 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
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NTM88 family 、 NTM88 、 NTM88Hxxx 、 NTM88Jxxx 、 NTM88xxxxT1 、 NTM88H05xT1 、 NTM88Hxx5 、 NTM88RM |
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tire pressure monitor sensors 、 pressure sensor 、 tire pressure monitoring sensor (TPMS) |
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User's Guide |
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Please see the document for details |
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HQFN24 |
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English Chinese Chinese and English Japanese |
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29 June 2021 |
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Rev. 7.1 |
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UM11227 |
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2.2 MB |
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