Texas Instruments TMP114NCIYMTR

Overview

TMP114NCIYMTR from Texas Instruments is a high-accuracy, ultra-thin digital temperature sensor with I²C/SMBus interface, ±1°C accuracy from –40°C to 125°C, 16-bit resolution (0.0078°C LSB), and 0.7 µA average supply current - deployed in SSDs, IP cameras, and wearable fitness monitors for thermal protection and system-level thermal management.

For engineers reviewing the TMP114NCIYMTR datasheet, TMP114NCIYMTR pinout, TMP114NCIYMTR application, or TMP114NCIYMTR equivalent, this page delivers verified technical context, package mapping, real-world use-value per application, and two confirmed alternative parts with documented functional and selection differences.

Technical Context

The TMP114NCIYMTR implements a factory-calibrated, NIST-traceable bandgap-based temperature sensing core with a 16-bit ADC and integrated digital logic for I²C/SMBus communication. It supports continuous and one-shot conversion modes, adjustable averaging (AVG=0/1), and programmable conversion periods (31.25 ms to 2 s).

Its architecture includes independent 1.2-V-compatible logic inputs, optional CRC-8 error checking, dual temperature alert thresholds with hysteresis, and slew-rate warning functionality triggered by rapid temperature changes - all operating across 1.08 V–1.98 V supply with ultra-low power states (0.16 µA shutdown current).

Key Specifications

Pinout & Package

Package: 4-ball DSBGA (YMT), 0.76 mm × 0.76 mm footprint, 0.15-mm profile - optimized for volume-constrained mobile and wearable PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMP114NCIYMTR, TMP103YFFT trades accuracy and feature depth for lower cost in non-critical roles, while MAX31875R2+T offers tighter accuracy and hardware safety at the expense of larger size and missing slew-rate intelligence - making TMP114NCIYMTR optimal for compact, feature-rich thermal management in portable electronics.

Availability

TMP114NCIYMTR is available at Aetrix Electronics and suitable for SSD thermal monitoring, wearable fitness tracking, and IP camera thermal protection requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.

Supply support for TMP114NCIYMTR 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

Texas Instruments is a global semiconductor leader focused on analog and embedded processing technologies, with decades of expertise in precision sensing, low-power design, and automotive-grade reliability.

The TMP114 product line was engineered specifically for ultra-thin, battery-constrained portable electronics - delivering NIST-traceable accuracy, sub-microwatt operation, and intelligent thermal alerting in the smallest possible footprint.

FAQ

What is the accuracy specification of the TMP114NCIYMTR across its full operating range?

The TMP114NCIYMTR is specified for ±1°C maximum accuracy over the full –40°C to 125°C operating temperature range. This applies to both continuous and one-shot conversion modes, with averaging enabled or disabled, and is validated on a NIST-traceable production test setup - ensuring consistent thermal limit enforcement without field calibration.

Does the TMP114NCIYMTR support I²C Fast-Plus mode, and what is the maximum clock frequency?

Yes, the TMP114NCIYMTR supports I²C Fast-Plus mode up to 1 MHz, as confirmed in Section 7.6 of the official datasheet. Its timing parameters - including tLOW, tHIGH, and tVDAT - are fully characterized across –40°C to 125°C and 1.08 V–1.98 V supply, enabling high-speed polling in bandwidth-constrained systems like SSD controllers and IP camera SoCs.

How does the slew-rate warning feature work in the TMP114NCIYMTR, and what is its accuracy?

The TMP114NCIYMTR's slew-rate warning compares the temperature delta between consecutive conversions against a user-programmed Slew_Limit register value. It triggers an alert if the change exceeds the limit, with ±15% accuracy due to internal oscillator variation. The feature operates only in continuous mode and automatically disables in shutdown or one-shot mode - providing early thermal anomaly detection for proactive system response.

What package type and dimensions does the TMP114NCIYMTR use, and why is it significant?

The TMP114NCIYMTR uses a 4-ball DSBGA (PicoStar™) package measuring 0.76 mm × 0.76 mm with a 0.15-mm height. This ultra-thin profile enables placement directly under shields or beneath large BGA components - delivering faster, more accurate die-adjacent temperature measurements in space-constrained mobile and wearable PCBs where traditional sensors cannot fit.

Can the TMP114NCIYMTR operate with a 1.2-V I²C bus while powered from a different supply voltage?

Yes, the TMP114NCIYMTR features static 1.2-V-compatible logic thresholds on SDA and SCL pins - VIH = 0.84 V and VIL = 0.35 V - independent of VDD. This allows direct interfacing with 1.2-V I²C masters even when VDD is 1.8 V, eliminating the need for external level shifters and simplifying design in heterogeneous voltage-domain systems like modern notebooks and SoC platforms.