NXP Semiconductors

NHS3100/A1 - NTAG SmartSensor Temp Logger NFC | NXP

MPN: NHS3100/A1 βœ“ Active
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1.7 V to 3.6 V Vdss 24-VFQFN Exposed Pad (HVQCCN) Package 13.56 MHz Speed
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Price updated: 2026-09-13
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NHS3100/A1 Overview

The NXP Semiconductors NHS3100/A1 is an NTAG SmartSensor IC optimized for temperature monitoring and logging, integrating a 13.56 MHz NFC interface (ISO 14443), an internal temperature sensor, an embedded Arm Cortex-M0+ microcontroller, and a direct battery connection in a 24-pin VFQFN package with exposed pad, operating from 1.7 V to 3.6 V.

An NTAG SmartSensor is a member of the smart sensor IC family that combines passive-style HF NFC communication with active sensing and computation. In the semiconductor hierarchy it sits between a pure NFC tag IC and a general-purpose microcontroller: it is a temperature-logger system-on-chip within the broader categories of NFC HF transceivers, sensor interfaces, and power management solutions. Because the NFC interface harvests communication power during reader interaction, the NHS3100 supports ultra-low-power logging architectures where the battery is only drained by measurement and computation, not by data readout.

Key features include the embedded NFC Forum Type 2 Tag compliant interface at 13.56 MHz per ISO/IEC 14443, an on-chip temperature sensor dedicated to cold-chain and condition monitoring, digital GPIOs for external sensor expansion, and the Arm Cortex-M0+ core that lets users implement custom firmware logic such as threshold alarms, logging schedules, and data compression. The direct battery connection allows single-cell operation without a separate power-management stage, minimizing external component count and enabling single-layer foil antenna designs.

Architecturally, the NHS3100 pairs the Cortex-M0+ with on-chip nonvolatile memory for application code and logged data, SRAM for working storage, and the NFC front-end sharing the EEPROM/EEPROM-like tag memory visible to readers. I2C and SPI interfaces are available for external sensors such as humidity or pressure. The temperature logger profile stores timestamped measurements that a smartphone or NFC reader can extract in the field without disassembling the product.

Typical applications include cold-chain shipment monitoring for pharmaceuticals and perishable food, NFC-enabled temperature data loggers on medical packaging, and condition-monitoring labels for industrial goods, where the NHS3100 provides battery-backed logging plus contactless readout in one IC.

Design consideration: place the IC with a single-layer printed foil antenna and keep the battery path low-impedance; firmware should batch temperature conversions to stretch battery life, since logging frequency dominates energy consumption rather than NFC readout.

This page synthesizes distributor availability data, packaging-variant cross references, and practical design notes not found in the manufacturer datasheet.

Drop-in alternatives for NHS3100/A1 β€” same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool β€” Select alternative parts for side-by-side comparison:

NHS3100/A1Z

βœ… Drop-In
πŸ“¦ 24-VFQFN Exposed Pad
same die and function, different packaging/delivery suffix (DigiKey-catalogued variant)

πŸ“‹ Reference alternative (not in catalog)

NHS3100/A1X

βœ… Drop-In
πŸ“¦ 24-VFQFN Exposed Pad
same NHS3100 temperature-logger IC, alternative delivery form listed at Arrow (kit/reader listing)

πŸ“‹ Reference alternative (not in catalog)

NHS3100W8/A1V

βœ… Drop-In
πŸ“¦ 24-VFQFN Exposed Pad
same-family NHS3100W8/A1 temperature logger ordering code (Mouser listing), delivery form differs

πŸ“‹ Reference alternative (not in catalog)

NHS3100/A1,515

βœ… Drop-In
πŸ“¦ 24-VFQFN Exposed Pad
identical IC; ,515 suffix indicates standard packing/delivery code per NXP ordering convention

πŸ“‹ Reference alternative (not in catalog)

NHS3100/A1 Maximum Ratings & Electrical Characteristics

Product Family NTAG SmartSensor
Core Processor Arm Cortex-M0+
Primary Function Temperature monitoring and logging
NFC Interface Frequency 13.56 MHz
NFC Standard ISO/IEC 14443
Supply Voltage Range 1.7 V to 3.6 V
Serial Interfaces I2C, SPI
Digital IOs Yes (GPIO)
Internal Temperature Sensor Yes
Package 24-VFQFN Exposed Pad (HVQCCN)
Mounting Type Surface Mount
Operating Temperature Grade Industrial
Terminal Count 24

NHS3100/A1 24-vfqfn exposed pad (hvqccn) Pin Configuration Guide

Pin configuration for NHS3100/A1 (24-vfqfn exposed pad (hvqccn) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.

24-vfqfn exposed pad (hvqccn) package pinout diagram for NHS3100/A1

No detailed pinout data available for NHS3100/A1.

Refer to the datasheet for full pin configuration.

Typical Applications

NHS3100/A1 is suitable for 6 applications: Pharmaceutical Cold-Chain Monitoring, NFC Temperature Data Loggers, Medical Packaging Monitoring, Perishable Food Logistics, Industrial Condition Monitoring Labels, NFC Sensor Tag Evaluation and Prototyping.

πŸ’Š

Pharmaceutical Cold-Chain Monitoring

The NHS3100/A1 fits pharmaceutical cold-chain labels because its internal temperature sensor and battery-backed logging record the full thermal history of a shipment while the 13.56 MHz ISO/IEC 14443 NFC interface lets any smartphone read the log without opening the package or drawing battery power for readout. In a typical implementation, the IC is mounted on a single-layer foil antenna label with a coin cell on the direct battery connection, powered from the 1.7 V to 3.6 V supply range. The Arm Cortex-M0+ firmware logs temperature at user-defined intervals and flags excursions above a threshold, for example 8 C for refrigerated vaccines. The trade-off is logging interval versus battery life: more frequent conversions shorten operation, so engineers typically sample every 1 to 10 minutes for multi-week shipments.

🧩

NFC Temperature Data Loggers

For standalone NFC temperature loggers, the NHS3100/A1 replaces the discrete combination of an NFC tag IC, a temperature sensor, a microcontroller, and power management with a single 24-VFQFN device. According to NXP, the IC is optimized for temperature monitoring and logging and supports an effective system solution with minimal external components. The Arm Cortex-M0+ runs custom logging firmware, storing timestamped measurements in on-chip memory that an NFC reader extracts on demand. Digital IOs and I2C/SPI allow extension to humidity or light sensors when the application demands multi-parameter logging. Because the NFC front end handles communication only during reader interaction, quiescent drain is dominated by scheduled temperature conversions, which the firmware can duty-cycle aggressively. This yields logger designs thin enough for smart-label form factors on boxes, pallets, and returnable transport items.

πŸŽ₯

Medical Packaging Monitoring

Medical packages such as blood products, reagents, and diagnostic kits benefit from the NHS3100/A1 because a battery-backed, tamper-evident temperature history can be attached directly to the package and read contactlessly at the point of care. The internal temperature sensor removes the need for an external probe, and the direct battery connection permits a thin coin-cell assembly compatible with flexible label substrates and single-layer foil antennas. The 1.7 V to 3.6 V operating range covers common primary cells used in disposable medical labels. The Cortex-M0+ firmware can implement acceptance logic, for example logging cumulative time above 25 C and presenting a pass/fail flag to the reader, so receiving staff can verify integrity in seconds. Trade-off: disposable-cell capacity limits total logging duration, so interval selection must match the expected shelf-to-use window.

🏭

Perishable Food Logistics

In food logistics, the NHS3100/A1 provides a low-cost smart-label path to prove that seafood, dairy, or produce stayed within temperature limits. NXP designed the IC specifically for temperature monitoring and logging, and the NFC interface complies with ISO/IEC 14443 at 13.56 MHz, meaning any NFC phone can read the recorded history without dedicated equipment. The minimal-external-component architecture allows labels printed with a single-layer foil antenna, keeping label cost low enough for high-volume food shipments. The Arm Cortex-M0+ enables custom firmware such as shelf-life models computed from the temperature curve itself, converting raw measurements into remaining-quality estimates read out over NFC. Engineers should match the sampling interval to shipment duration; a multi-week refrigerated container trip needs coarser sampling than a two-day last-mile delivery to preserve battery capacity.

βš™οΈ

Industrial Condition Monitoring Labels

Industrial goods - machine spare parts, adhesives, composites, and electronics modules - often degrade with heat exposure during storage and transport. The NHS3100/A1 addresses this as an NFC condition-monitoring label IC: its internal sensor records ambient temperature while the Cortex-M0+ applies product-specific thresholds, and the 13.56 MHz NFC interface enables inspection with a standard smartphone or fixed reader at goods-in. The digital IOs and I2C/SPI interfaces extend the label to vibration counters or humidity sensors where the process requires more than temperature. Because the IC supports direct battery connection from 1.7 V to 3.6 V, a single primary cell powers years of intermittent logging. NXP's dual-IC NHS3100UCODEADK reference shows how logged state can also be forwarded to a UHF RFID interface via I2C for warehouse-wide automated reads, combining NFC field access with long-range inventory scanning.

πŸ”§

NFC Sensor Tag Evaluation and Prototyping

Engineers designing new NFC sensing products can prototype directly with the NHS3100 family before committing to a custom label layout. The NHS3100's Arm Cortex-M0+ is fully programmable, so teams can validate sampling schedules, NFC memory maps, alarm logic, and antenna matching on development hardware - NXP's NHS3100UCODEADK demonstrates the IC in a working dual-IC system with a UCODE UHF device connected over I2C. The 24-VFQFN exposed-pad package supports straightforward probe access for bench bring-up, while the same die scales into production smart labels using single-layer foil antennas. Because the IC integrates the temperature sensor, NFC front end, MCU, and direct battery connection, a two-layer prototype board plus coin cell is sufficient to demonstrate a complete configurable logger. This dramatically shortens the path from concept to a field-trial-ready NFC temperature tag.

Recommended Products Summary

NHS3100/A1Z Same-die packaging variant for volume builds Used in: Pharmaceutical Cold-Chain Monitoring, Medical Packaging Monitoring, NFC Sensor Tag Evaluation and Prototyping NHS3100UCODEADK Development kit for NHS3100 logger firmware Used in: Pharmaceutical Cold-Chain Monitoring, NFC Temperature Data Loggers, Medical Packaging Monitoring, Perishable Food Logistics, Industrial Condition Monitoring Labels, NFC Sensor Tag Evaluation and Prototyping SL354011FHK UHF RFID IC bridged via I2C in NXP reference design Used in: NFC Temperature Data Loggers, Industrial Condition Monitoring Labels NHS3100W8/A1V Same-family ordering code for logger builds Used in: Perishable Food Logistics
What is the NHS3100/A1?
The NHS3100/A1 is an NXP NTAG SmartSensor IC optimized for temperature monitoring and logging. According to the NXP NHS3100 datasheet, it integrates a 13.56 MHz NFC interface compliant with ISO/IEC 14443, an internal temperature sensor, an Arm Cortex-M0+ microcontroller, digital IOs, and a direct battery connection, all in a 24-pin VFQFN exposed-pad package operating from 1.7 V to 3.6 V.
What is the supply voltage range of the NHS3100/A1?
The NHS3100/A1 operates from 1.7 V to 3.6 V, per the DigiKey product listing for the NHS3100/A1Z variant of the same IC. This range supports a direct connection to a single lithium coin cell or two alkaline cells without a separate regulator, which is why NXP highlights the direct battery connection as a feature enabling minimal external components and single-layer foil designs.
What is the difference between NHS3100/A1 and NHS3100/A1Z?
The NHS3100/A1 and NHS3100/A1Z share the same die and functionality; the suffix indicates a packaging/delivery-form difference, as confirmed by the NXP Community discussion on NHS3100 packaging (A1, A1Z, UKA1Z) in which NXP confirms functional equivalence. The A1Z is the DigiKey-catalogued variant in the 24-VFQFN exposed-pad package. For new designs, choose whichever delivery form your supply chain stocks.
Can the NHS3100/A1 run custom firmware?
Yes. According to the NXP product page, the embedded Arm Cortex-M0+ offers flexibility for users to implement their own dedicated solutions, including custom logging schedules, threshold alarms, and data processing. NXP provides the NHS3100 development kit (NHS3100UCODEADK pairing with SL354011FHK) and firmware SDK so engineers can flash application code and tailor the temperature-logger behavior to their use case.
What is the best drop-in replacement for NHS3100/A1?
The closest drop-in replacement is NHS3100/A1Z, the same die and 24-VFQFN exposed-pad package sold through DigiKey; the only difference is the packaging/delivery suffix. NHS3100W8/A1V (listed by Mouser as the NHS3100W8/A1 temperature logger) is another same-family ordering code. No cross-brand pin-compatible equivalent was found in available cross-reference data, so second sourcing requires board-level redesign.
Is NHS3100/A1 the same as NHS3100/A1Z?
Functionally yes - both are the NXP NHS3100 NTAG SmartSensor with the same temperature sensor, NFC interface, and Arm Cortex-M0+ core. Per the NXP Community packaging thread, the suffixes A1, A1Z, and UKA1Z denote different packaging/delivery forms rather than functional differences. Verify the specific suffix against your reflow and taping requirements when ordering, since taping orientation and reel quantity can differ between suffixes.
Where to download the NHS3100 datasheet PDF?
The official NHS3100 datasheet PDF is available directly from NXP at https://www.nxp.com/docs/en/data-sheet/NHS3100.pdf. This is the authoritative document covering the general description, NFC interface, temperature sensor, Arm Cortex-M0+ subsystem, electrical characteristics, and package dimensions. Mirror copies exist on aggregator sites such as alldatasheet.com and datasheet4u.com, but always prefer the NXP original for the latest revision.
Where can I find the NHS3100 pinout?
The NHS3100 pinout is documented in the official NXP datasheet PDF at nxp.com/docs/en/data-sheet/NHS3100.pdf, in the pinning information section for the 24-pin HVQCCN (VFQFN exposed pad) package. Because pin functions include NFC antenna connections (TX/RX), battery input, GPIOs, and I2C/SPI pads, engineers should copy pin assignments directly from the datasheet table rather than from secondary sources.
What are the key specifications of NHS3100/A1 that engineers should know?
Key NHS3100/A1 specifications: NXP NTAG SmartSensor for temperature logging; 13.56 MHz NFC interface per ISO/IEC 14443; internal temperature sensor; Arm Cortex-M0+ MCU core; I2C and SPI interfaces; digital GPIOs; 1.7 V to 3.6 V supply with direct battery connection; 24-pin VFQFN exposed-pad (HVQCCN) package; industrial temperature grade. These parameters make it a single-chip NFC temperature data logger requiring minimal external components.
Is NHS3100/A1 suitable for cold-chain pharmaceutical monitoring?
Yes, the NHS3100/A1 is well suited to cold-chain monitoring: its internal temperature sensor plus battery-backed logging continuously records temperature history, while the NFC interface lets any smartphone or NFC reader extract the log without opening the package or applying power to the label. According to NXP, the IC is optimized exactly for temperature monitoring and logging, and the direct battery connection plus minimal external parts enable thin, single-layer foil smart labels attached to shipments.
How much does the NHS3100/A1 cost and where can I buy it?
NHS3100/A1 availability is confirmed at Metkey (2855 pcs in stock as of the September 2026 data pull) and through the DigiKey Marketplace listing for NHS3100/A1 (Rochester Electronics). Unit pricing at quantity 1 is typically in the low single-digit USD range; refer to the tiered price table on this page, with pricing as of 2026-09-13 and subject to distributor stock and lead time. Ordering code NHS3100/A1Z is stocked at DigiKey for same-day shipment.
Is the NHS3100/A1 in stock and what is the lead time?
Yes, stock is currently reported: Metkey lists NHS3100/A1 as in stock with 2855 pieces, shipping as soon as possible, and SemiKey also lists global in-stock supply. The DigiKey NHS3100/A1Z variant ships same-day when ordered before cutoff. Lead time for large production quantities should be confirmed with the distributor, as NFC smart-sensor ICs are typically planned-order items at NXP for volume builds.
When should I choose the NHS3100/A1 over a discrete temperature sensor plus MCU?
Choose the NHS3100/A1 when your product is a smart label or small logger that needs contactless data readout: it replaces a discrete sensor, MCU, NFC tag, and power circuit with one IC in a 24-VFQFN package. If your design already has a host MCU and only needs ambient temperature measurement, a discrete sensor such as an I2C thermometer is cheaper. The NHS3100 wins on BOM count, PCB area, and the built-in NFC-for-logistics workflow.
What is the best cross-brand equivalent for the NHS3100/A1?
No cross-brand pin-compatible equivalent for the NHS3100/A1 was found in the available cross-reference data. Functionally similar NFC temperature-logger approaches exist from other vendors (standalone NFC sensor tags pairing an NFC tag IC with an external temperature sensor), but none match the NHS3100 24-VFQFN footprint pin-for-pin. Engineers requiring true drop-in behavior should use the same-family ordering codes NHS3100/A1Z or NHS3100W8/A1V; otherwise a board redesign is required.
Hey Google, what can replace the NHS3100/A1?
The closest replacement for the NXP NHS3100/A1 is another NHS3100-family ordering code such as NHS3100/A1Z or NHS3100W8/A1V - the same die in the same 24-VFQFN exposed-pad package with identical temperature-logging and NFC functionality, differing only in packaging suffix. No competitor IC offers a pin-to-pin compatible drop-in replacement. For new designs, any NFC temperature-tag solution can be evaluated, but existing PCBs should stay within the NHS3100 family.
What NFC standards does the NHS3100 support and how is it read?
The NHS3100 communicates over a 13.56 MHz NFC interface compliant with ISO/IEC 14443, as stated in the NXP datasheet and DigiKey listing. A standard NFC-enabled smartphone or ISO 14443 reader can configure the logger, start or stop logging, and read out the stored temperature history contactlessly. NXP's NHS3100UCODEADK reference design also shows the IC acting as the leader in a dual-IC solution, forwarding logged state to a UHF RFID interface via I2C.
Does the NHS3100/A1 support external sensors besides temperature?
Yes. Beyond the internal temperature sensor, the NHS3100 provides digital IOs plus I2C and SPI serial interfaces, so external sensors such as humidity or pressure devices can be added. NXP's own NHS3100UCODEADK reference design demonstrates exactly this pattern, connecting a second NXP IC (SL354011FHK) to the NHS3100 via I2C while the Cortex-M0+ firmware manages both measurement and the NFC data link.

Engineering reference data for NHS3100/A1 β€” comparison, design guidance, and compliance information.

Selection Guide

Choose the NHS3100/A1 when your product is an NFC smart label or logger that must record temperature history and be read contactlessly by any ISO/IEC 14443 smartphone - its integration of sensor, MCU, and NFC front end in one 24-VFQFN package beats discrete solutions on BOM count and label thickness. Among ordering codes, pick whichever your channel stocks: NHS3100/A1 (Metkey, 2855 pcs in stock), NHS3100/A1Z (DigiKey, ships today), NHS3100W8/A1V (Mouser), or NHS3100/A1,515 (multi-distributor); all are the same die per NXP Community confirmation. If your application needs long-range automated reads in addition to NFC, evaluate the NXP NHS3100UCODEADK dual-IC architecture with the SL354011FHK UHF device. There is no cross-brand drop-in equivalent - any competitor NFC sensor tag requires a board redesign. Honest trade-off: if you only need a local temperature reading with no logging and no NFC, a simple I2C thermometer is cheaper.

Comparison with Alternatives

Parameter This Product NHS3100/A1Z NHS3100/A1X NHS3100W8/A1V NHS3100/A1,515
Package 24-VFQFN Exposed Pad (HVQCCN) 24-VFQFN Exposed Pad - same 24-VFQFN Exposed Pad - same 24-VFQFN Exposed Pad - same 24-VFQFN Exposed Pad - same
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors
Core Arm Cortex-M0+ Arm Cortex-M0+ Arm Cortex-M0+ Arm Cortex-M0+ Arm Cortex-M0+
NFC Frequency 13.56 MHz (ISO/IEC 14443) 13.56 MHz 13.56 MHz 13.56 MHz 13.56 MHz
Supply Voltage 1.7 V to 3.6 V 1.7 V to 3.6 V 1.7 V to 3.6 V 1.7 V to 3.6 V 1.7 V to 3.6 V
Temperature Sensor Internal Internal Internal Internal Internal
Serial Interfaces I2C, SPI I2C, SPI I2C, SPI I2C, SPI I2C, SPI
Primary Availability Channel Metkey, DigiKey Marketplace, SemiKey DigiKey (ships today) Arrow.com Mouser Octopart multi-distributor

Key Differentiators

  • Single-IC NFC temperature logger (vs Discrete NFC tag + sensor + MCU solutions)
  • Direct battery connection without power stage (vs NHS3100/A1Z (identical) vs typical NFC sensor tags)
  • Programmable platform vs fixed-function tags (vs NHS3100UCODEADK companion design)

Design Notes

The NHS3100/A1 is designed for single-layer foil antenna smart labels: NXP states it supports an effective system solution with minimal external components. Route the NFC antenna as a symmetric loop matching the ISO/IEC 14443 13.56 MHz resonance, and keep the matching network components close to the TX/RX pads. The exposed pad of the 24-VFQFN should be soldered to ground for mechanical stability and thermal relief. Battery trace to the direct-battery connection pin should be short and wide to minimize series resistance during temperature-conversion current spikes.

With the 1.7 V to 3.6 V direct battery connection, battery selection dominates logger lifetime. Estimated: a typical CR2032 (~220 mAh) supporting a temperature conversion every 60 s will outlast the shelf life of most shipments, whereas 1-second sampling can consume the cell in weeks - the exact conversion current must be taken from the manufacturer datasheet, since it is not in the verified data on this page. Batch conversions in firmware and use the Cortex-M0+ sleep modes between samples; NFC readout itself draws power from the reader field, not the cell.

Do not assume all NHS3100 ordering suffixes are electrically different: per the NXP Community packaging thread, A1, A1Z, and UKA1Z are packaging/delivery differences, not functional ones - ordering the wrong suffix causes logistics delays, not design errors. Also verify taping orientation when automating assembly, and always pull pin assignments from the official NHS3100 datasheet PDF rather than secondary aggregator sites, which may carry outdated revisions.

Compliance Information

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
Unknown
Halogen Free
Unknown
Conflict Minerals
Unknown

Compliance status was not stated in the verified web data; consult the official NXP product page and datasheet for RoHS/REACH declarations.

Data verified on: 2026-09-13 β€” data verified and curated by XAIPART's component engineering team

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Related Components & Terms

NXP Semiconductors NHS3100 NHS3100/A1 NHS3100/A1Z NHS3100W8/A1V NTAG SmartSensor Arm Cortex-M0+ NFC ISO/IEC 14443 13.56 MHz VFQFN-24 HVQCCN temperature logger cold chain monitoring I2C SPI digital GPIO industrial temperature grade RFID NHS3100UCODEADK SL354011FHK data logger smart label
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