NXP Semiconductors P3T2030BUKAZ

Overview

P3T2030BUKAZ from NXP Semiconductors is a digital temperature sensor with I3C and I2C-bus interface, ±2 °C accuracy across −40 °C to +125 °C at V_CC ≥ 1.62 V, 12-bit resolution (0.0625 °C), and overtemperature detection. It operates in normal, one-shot, or shutdown mode and targets thermal monitoring in space-constrained embedded systems.

For engineers reviewing the P3T2030BUKAZ datasheet, P3T2030BUKAZ pinout, P3T2030BUKAZ application, or P3T2030BUKAZ equivalent, key selection considerations include its WLCSP4 package, factory-programmed I2C address 1110001 (0x71), I3C provisional-ID support, MDA capability for multi-device I2C reads/writes, and low 6 μA quiescent current.

Technical Context

The P3T2030BUKAZ integrates an on-chip bandgap temperature sensor and 12-bit ADC, storing two's complement temperature data in a dedicated Temp register accessible via I3C or Fast-mode Plus I2C. Its configuration register enables programmable over/undertemperature thresholds and selectable operating modes (one-shot, continuous, shutdown).

I3C operation supports dynamic address assignment via SETDASA CCC, BCR/DCR reporting, and in-band interrupts (IBI) triggered by tHIGH/tLOW threshold crossings. In I2C mode, it implements Multiple Device Access (MDA) - a proprietary broadcast mechanism enabling simultaneous register access across up to eight devices on the same bus using dedicated MDA read/write addresses.

Key Specifications

Pinout & Package

Package: Wafer Level Chip Scale Package (WLCSP4), 4-terminal, 0.4 mm pitch, 0.91 mm × 0.855 mm × 0.455 mm body (SOT1375-6).

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 P3T2030BUKAZ delivers broader industrial temperature coverage with I3C readiness and MDA efficiency-critical for scalable, future-proof thermal subsystems in dense PCB layouts.

Availability

P3T2030BUKAZ is available at Aetrix Electronics and suitable for server thermal management, industrial PLC monitoring, and SSD controller thermal throttling requiring stable component supply and long-term lifecycle assurance.

Supply support for P3T2030BUKAZ 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 applications.

The P3T2030BUKAZ belongs to NXP's precision I3C/I2C temperature sensor family, designed specifically for high-density, low-power thermal monitoring in next-generation compute and storage platforms.

FAQ

What is the factory-programmed I2C address for P3T2030BUKAZ?

The P3T2030BUKAZ has a fixed I2C 7-bit static address of 1110001 (0x71), as defined in Table 2 of the datasheet. This address is laser-trimmed during wafer test and cannot be modified. It enables plug-and-play integration without external address configuration components.

Does P3T2030BUKAZ support both I2C and I3C protocols simultaneously?

No - the P3T2030BUKAZ operates in either I2C or I3C mode, selected automatically at power-up based on bus activity. If an I2C controller initiates communication first, the device remains in I2C mode; if an I3C controller sends a CCC (e.g., SETDASA), it enters I3C mode. Mode switching requires reset or power cycle.

Can P3T2030BUKAZ perform temperature conversions in shutdown mode?

No - in shutdown mode, the P3T2030BUKAZ disables the bandgap sensor, ADC, and interface logic to achieve 6 μA typical current draw. Temperature conversion resumes only after exiting shutdown via Configuration register write (M1:M0 = 00b or 01b) or power cycle.

What is the purpose of the Multiple Device Access (MDA) feature in P3T2030BUKAZ?

MDA allows a single I2C transaction to read or write the same register (Temp, tHIGH, or tLOW) across up to eight P3T2030BUKAZ devices on one bus. It uses dedicated MDA addresses (0x00 for write, 0x01 for read) and reduces bus traffic versus individual addressing - especially valuable in multi-sensor thermal arrays.

How does the overtemperature detection function work in P3T2030BUKAZ?

The P3T2030BUKAZ continuously compares measured temperature against the tHIGH register value. When temperature exceeds tHIGH, the FH bit (bit 3) in the Configuration register is set to 1. This flag can trigger an in-band interrupt (IBI) if enabled, or be polled by the host via I2C/I3C - enabling immediate thermal response without continuous register reads.