The NXP NHS3152 is an IC optimized for logging and sensing. With its embedded NFC interface, internal temperature sensor, ADC, DAC, current sensor and direct battery connection, it supports an effective system solution with a minimal number of external components.
The embedded ARM Cortex-M0+ offers flexibility to the users of this IC to implement their own dedicated solution. The NHS3152 contains multiple features, including multiple Power-down modes and a selectable CPU frequency of up to 8 MHz, for ultra low power consumption.
Users can program this NHS3152 with the industry-wide standard solutions for ARM Cortex-M0+ processors.
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## Features
* System
* ARM Cortex-M0+ processor running at frequencies of up to 8 MHz
* ARM Cortex-M0+ built-in Nested Vectored Interrupt Controller (NVIC)
* ARM Serial Wire Debug
* System tick timer
* IC reset input
* Memory
* 32 kB on-chip flash programming memory
* 4 kB on-chip EEPROM of which 256 bytes can be write protected
* 8 kB SRAM
* Digital peripherals
* Up to 12 General-purpose I/O (GPIO) pins with configurable pull-up/pull-down resistors and repeater mode
* GPIO pins which can be used as edge and level sensitive interrupt sources
* High-current drivers/sinks (20 mA) on four GPIO pins
* High-current drivers/sinks (20 mA) on two I2C Bus pins
* Programmable WatchDog timer (WDT)
* Analog peripherals
* Temperature sensor with ±0.3 °C absolute temperature accuracy between 0 °C and 40 °C and ±0.5 °C in the range between -40 and +85 °C
* Analog to Digital convertor
* Digital to Analog convertor
* Current Sensor
* 6 analog I/O pins
* Communication interfaces
* NFC/RFID ISO 14443 type A interface
* I2C-bus interface supporting full I²C-bus specification and Fast-mode with a data rate of 400 kbit/s, with multiple address recognition and Monitor mode
* Clock generation
* 8 MHz internal RC oscillator, trimmed to 2 %, accuracy, which is used as the system clock
* Timer oscillator operating at 32 kHz linked to the RTC timer unit
* Power control
* Support for 1.72 V – 3.6 V external voltages
* The NHS3152 can also be powered from the NFC field
* Activation via NFC possible
* Integrated Power Management Unit (PMU) for versatile control of power consumption
* Four reduced power modes for ARM Cortex-M0+: Sleep, Deep-sleep, and Deep power-down and Battery-off
* Power gating for each analog peripheral for ultra-low power operation
* < 50 nA IC current consumption in Battery-off mode at 3.0 V
