NXP Semiconductors P3T1035GUKAZ

Overview

P3T1035GUKAZ from NXP Semiconductors is a high-accuracy digital temperature sensor with I3C and I²C interfaces, operating from −40 °C to +125 °C, delivering ±0.5 °C accuracy (0 °C to +70 °C at V_CC ≥ 1.62 V), 12-bit resolution (0.0625 °C), and ultra-low 6 μA typical supply current - deployed in SSD thermal monitoring, notebook CPU die sensing, and IoT edge node ambient measurement.

For engineers reviewing the P3T1035GUKAZ datasheet, P3T1035GUKAZ pinout, P3T1035GUKAZ application, or P3T1035GUKAZ equivalent, this page delivers verified electrical specs, WLCSP4 package layout, I3C/I²C register-level interoperability details, overtemperature flag behavior, and validated alternative part selection guidance for thermal management subsystems.

Technical Context

The P3T1035GUKAZ integrates an on-chip bandgap temperature sensor with 12-bit successive-approximation ADC, storing two's complement temperature data in a read-only Temp register (00h). It supports three functional modes - one-shot, continuous conversion, and shutdown - controlled via M1/M0 bits in the Configuration register (01h).

I²C operation includes Fast-mode Plus (up to 1 MHz) and proprietary Multiple Device Access (MDA) for simultaneous register writes/reads across up to eight devices on one bus; I3C mode implements SDR-only target functionality with dynamic address assignment via SETDASA CCC, BCR/DCR compliance, and IBI support triggered by tHIGH/tLOW threshold crossings.

Key Specifications

Pinout & Package

Package: WLCSP4 (SOT1375-6), 0.91 mm × 0.855 mm × 0.455 mm body, 0.4 mm pitch, 4-terminal wafer-level chip-scale package optimized for space-constrained mobile and embedded PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital temperature sensor applications.

Compared with STTS22HTR and MAX31875RTA+, the P3T1035GUKAZ uniquely combines I3C readiness, MDA efficiency, and WLCSP4 footprint - making it optimal for next-generation SSDs, DDR5 DIMMs, and compact IoT nodes requiring both precision and protocol scalability.

Availability

P3T1035GUKAZ is available at Aetrix Electronics and suitable for SSD thermal management, notebook CPU die sensing, and industrial IoT edge node applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for P3T1035GUKAZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in sensor signal conditioning and low-power mixed-signal design.

The P3T1035GUKAZ belongs to NXP's high-accuracy I3C/I²C temperature sensor family, engineered specifically for thermal-aware computing in bandwidth-constrained, power-sensitive, and space-limited applications such as client SSDs and mobile SoC platforms.

FAQ

What is the I²C address of P3T1035GUKAZ?

The P3T1035GUKAZ has a factory-programmed static I²C target address of 1110110 (0x76), corresponding to the 'G' variant in Table 2 of the datasheet. This fixed address eliminates configuration overhead and prevents bus collisions in multi-sensor deployments, and is used directly by controllers during standard I²C read/write transactions without address remapping.

Does P3T1035GUKAZ support I3C dynamic address assignment?

Yes, P3T1035GUKAZ supports I3C dynamic address assignment via the SETDASA Common Command Code (CCC), but only when its static I²C address is not 1110110 - which is the case for the G variant. Since 1110110 is an I3C target-restricted address (per Table 7 footnote), P3T1035GUKAZ operates in I3C mode using its static address or via broadcast CCCs like RSTDAA and ENTC, not SETDASA.

How does the Multiple Device Access (MDA) feature work on P3T1035GUKAZ?

MDA allows a single I²C transaction to simultaneously write to or read the MSByte of Temp, tHIGH, or tLOW registers across multiple P3T1035GUKAZ devices. The controller sends MDA write address 00000000 or MDA read address 00000001, followed by pointer and data - all addressed devices respond in parallel, reducing bus arbitration overhead by up to 8× in dense thermal sensor arrays.

What is the temperature resolution and format of the Temp register in P3T1035GUKAZ?

The Temp register (00h) holds a 12-bit two's complement value representing temperature in 0.0625 °C steps (e.g., 0x0100 = +25.0 °C). It is accessed as two bytes (MSB/LSB); 8-bit reads return only the MSByte with 1 °C resolution. The register updates automatically after each conversion cycle and is readable at any time without halting operation.

Can P3T1035GUKAZ generate interrupts without host polling?

Yes, P3T1035GUKAZ supports In-Band Interrupt (IBI) signaling on the I3C bus: when the measured temperature crosses tHIGH or tLOW thresholds, the FH or FL flag in the Configuration register (01h) transitions, causing the device to pull SDA low during bus idle periods - triggering immediate controller attention without periodic register polling.