NXP Semiconductors P3T1035CUKAZ

Overview

P3T1035CUKAZ from NXP Semiconductors is a high-accuracy I3C/I²C digital temperature sensor operating from −40 °C to +125 °C, featuring ±0.5 °C accuracy (0 °C to +70 °C), 12-bit resolution (0.0625 °C), and ultra-low 6 μA quiescent current. It integrates an on-chip bandgap sensor, programmable over/undertemperature thresholds, and supports both I3C SDR and Fast-mode Plus I²C interfaces - deployed in portable devices, SSDs, and server thermal monitoring.

For engineers reviewing the P3T1035CUKAZ datasheet, P3T1035CUKAZ pinout, P3T1035CUKAZ application, or P3T1035CUKAZ equivalent, this page delivers verified technical context, validated pin functions, real-world use cases for thermal management in space-constrained systems, and two confirmed alternative parts with documented functional and accuracy trade-offs.

Technical Context

The P3T1035CUKAZ implements a bandgap-based temperature sensing core with 12-bit two's complement ADC output, storing readings in a dedicated Temp register (00h) accessible via I3C or I²C. Its configuration register (01h) controls functional modes (one-shot, continuous, shutdown) and enables FH/FL interrupt flags triggered by tHIGH/tLOW threshold violations.

I3C operation includes dynamic address assignment via SETDASA CCC, BCR/DCR compliance (DCR = 0x63 for temperature sensor), and IBI support for event-driven interrupts. In I²C mode, it supports Multiple Device Access (MDA) for simultaneous register writes/reads across up to eight devices using dedicated MDA addresses (00000000/00000001), though MDA only accesses MSByte of Temp/tHIGH/tLOW registers.

Key Specifications

Pinout & Package

WLCSP4 package: Wafer Level Chip Scale Package with 4 solder balls, 0.4 mm pitch, body dimensions 0.91 mm × 0.855 mm × 0.455 mm.

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 P3T1035CUKAZ uniquely combines I3C readiness, MDA-enabled multi-sensor efficiency, and ±0.5 °C accuracy across the full commercial temperature span - making it optimal for next-gen server, SSD, and portable electronics requiring both precision and interface flexibility.

Availability

P3T1035CUKAZ is available at Aetrix Electronics and suitable for server thermal management, SSD temperature control, and industrial PLC ambient sensing requiring stable component supply and long-term lifecycle support.

Supply support for P3T1035CUKAZ 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.

The P3T1035CUKAZ belongs to NXP's high-precision I3C/I²C temperature sensor family, designed specifically for thermal monitoring in space-constrained, low-power, and high-reliability embedded systems where accuracy, interface modernization, and multi-device scalability are critical.

FAQ

What is the guaranteed accuracy specification for P3T1035CUKAZ across its full operating temperature range?

The P3T1035CUKAZ guarantees ±0.5 °C maximum accuracy from 0 °C to +70 °C at VCC ≥ 1.62 V. Outside that range, accuracy degrades to ±1 °C from −40 °C to +125 °C under the same supply condition. At lower VCC (1.4 V ≤ VCC < 1.62 V), accuracy is ±2 °C (−20 °C to +100 °C) and ±3 °C (−40 °C to +125 °C). These values are explicitly specified in Section 1 and Table 27 of the P3T1035CUKAZ datasheet.

Does P3T1035CUKAZ support true I3C dynamic address assignment, and how is it implemented?

Yes, P3T1035CUKAZ supports I3C dynamic address assignment via the SETDASA Common Command Code (CCC). The controller sends a SETDASA command (0x87) containing the device's static address (1110010) and a 7-bit dynamic address. This flow is defined in Section 7.4.4 and Figure 8 of the P3T1035CUKAZ datasheet. The device also responds to ENTDAA and RSTDAA broadcast CCCs to enter or reset the assignment process.

Can P3T1035CUKAZ operate in shutdown mode, and what is its current draw in that state?

Yes, P3T1035CUKAZ supports shutdown mode controlled via bits M1/M0 in the Configuration register (01h). In shutdown mode, the device disables the ADC and interface logic, reducing supply current to less than 1 μA (typical). This state preserves register contents and allows fast wake-up (<1 ms) upon mode change - confirmed in Section 7.1 and Table 22 of the P3T1035CUKAZ datasheet.

How does the Multiple Device Access (MDA) feature work on P3T1035CUKAZ, and what registers does it support?

MDA allows a single I²C transaction to simultaneously read or write the Temp, tHIGH, or tLOW registers across multiple P3T1035CUKAZ devices. It uses dedicated MDA addresses (00000000 for write, 00000001 for read). Only the MSByte (8-bit) of these registers is accessible via MDA - the LSByte is excluded. This behavior is documented in Sections 7.3.5 and Figure 22 of the P3T1035CUKAZ datasheet.

What is the factory-programmed I²C address for P3T1035CUKAZ, and how is it encoded?

The factory-programmed I²C target address for P3T1035CUKAZ is 1110010 (7-bit, left-aligned), corresponding to 0x72 in 8-bit format (with R/W bit). This is fixed per the "C" variant in Table 2 of the P3T1035CUKAZ datasheet and cannot be altered. The address is hard-coded in OTP and used for all standard I²C read/write and MDA transactions.