NXP Semiconductors NTP53121G0JTZ
- Part No.:
- NTP53121G0JTZ
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID Transponders, Tags
- Package:
- Datasheet:
-
NTP53121G0JTZ.pdf
- Description:
- NTAG
- Quantity:
- Payment:

- Shipping:

Inventory:2,344
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NTP53121G0JTZ from NXP Semiconductors is an NFC Forum-compliant Type 5 Tag IC operating at 13.56 MHz, functioning as an I2C slave bridge between NFC readers and sensors or external memory. It delivers zero-power sensor readout via energy harvesting, provides 2048 bytes of user EEPROM and 256 bytes of SRAM, and supports ISO/IEC 15693 for industrial reader communication up to 60 cm - ideal for battery-free smart sensor commissioning and field parameterization.
For engineers reviewing the NTP53121G0JTZ datasheet, NTP53121G0JTZ pinout, NTP53121G0JTZ application, or NTP53121G0JTZ equivalent, this page details its SO8-packaged I2C slave interface, antenna-coupled RF operation, configurable GPIO/PWM/event detection pins, memory protection architecture, and secure NFC-to-sensor data path - all critical for low-BOM, maintenance-free IoT edge node design.
Technical Context
The NTP53121G0JTZ implements a dual-interface architecture: an ISO/IEC 15693/NFC Forum Type 5 RF front-end with integrated antenna matching (LA/LB pins), and an I2C slave controller supporting standard (100 kHz) and fast (400 kHz) modes. Its digital control unit manages session registers, memory arbitration, and security state transitions without MCU intervention.
It features a dedicated energy harvesting power management unit (PMU) generating a configurable output voltage (up to 30 mW), low-power standby current <6 µA, and hard power-down mode (<0.25 µA). The SO8 package omits HPD and VOUT pins - confirming absence of hardware power-down control and on-chip energy harvesting output regulation in this variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Standard | ISO/IEC 15693 and NFC Forum Type 5 Tag compliant - ensures interoperability with industrial long-range readers and consumer NFC devices |
| Memory | 2048 bytes user EEPROM + 256 bytes SRAM - enables persistent sensor configuration storage and volatile high-speed pass-through data buffering |
| I2C Interface | Slave-only, 100/400 kHz - connects directly to I2C sensors or MCUs without master logic; no transparent I2C master channel (NTP5332 feature only) |
| Operating Voltage | 1.62 V to 5.5 V supply - supports direct connection to harvested energy sources or system rails across diverse embedded environments |
| Temperature Range | −40 °C to +85 °C for EEPROM write, −40 °C to +105 °C for read/register access - validated for industrial sensor node deployment |
| Security | 32-bit password protection, NFC privacy mode, read-only lock, ECC-based reprogrammable originality signature - provides layered authentication and anti-cloning without AES (NTP5332 exclusive) |
| Power Modes | Standby current <6 µA, hard power-down <0.25 µA - enables multi-year operation in energy-constrained, intermittently powered applications |
Pinout & Package
Package: SO8 (SOT96-1), plastic small outline package, 8 leads, 1.27 mm pitch, 4.9 mm × 3.9 mm × 1.75 mm body. HPD and VOUT functions are not available in this package variant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for both RF and digital domains - must be connected to system ground plane |
| 2 | LA | Antenna connection (low-side) - forms resonant LC tank with external coil and LB pin |
| 3 | LB | Antenna connection (high-side) - completes antenna interface; requires impedance-matched PCB trace layout |
| 4 | GND | Second ground terminal - improves RF return path integrity and reduces EMI susceptibility |
| 5 | SDA/GPIO1/PWM1 | Multiplexed I2C data line, general-purpose I/O, or PWM output - configured via CONFIG register; default I2C slave mode |
| 6 | SCL/GPIO0/PWM0 | Multiplexed I2C clock line, general-purpose I/O, or PWM output - synchronizes I2C transactions or generates timing signals |
| 7 | ED/PWM0 | Event detection input or PWM output - triggers on external signal edges (e.g., sensor alert) or drives LED/driver circuits |
| 8 | VCC | External power supply input - accepts 1.62–5.5 V; powers internal circuitry when not harvesting energy |
Key Features
| Feature | Design Value |
|---|---|
| Zero-power sensor readout | Draws operating energy solely from NFC reader field - eliminates need for local battery in single-shot measurement scenarios |
| Configurable memory protection | Three independent memory areas with selectable access levels (no protection, 32-bit password, or ECC originality check) - enables differentiated security per data type |
| Pass-through data transfer | 256-byte SRAM buffer enables real-time NFC-to-I2C data relay without host MCU involvement - reduces latency in dynamic pairing |
| Robust industrial operation | Guaranteed EEPROM read functionality from −40 °C to +105 °C - supports deployment in automotive under-hood or factory-floor environments |
| Low-BOM system integration | Integrated RF matching, energy harvesting PMU, and multiplexed GPIO/PWM eliminate discrete support components - reduces PCB area and BOM count |
Applications
| Smart Sensor Commissioning | Industrial Device Parameterization |
|---|---|
Use Scenario: Factory-floor calibration of temperature/humidity sensors before shipment using NFC-enabled tablet. IC Role / Device Role / Timing Role: Acts as NFC-to-I2C bridge, receiving calibration coefficients over NFC and writing them directly to sensor registers via I2C slave interface. Use Value: Eliminates wired programming fixtures and manual configuration; enables rapid, error-free setup with zero additional power source. |
Use Scenario: Field technician updating firmware or operational parameters on a sealed industrial flow meter using smartphone tap. IC Role / Device Role / Timing Role: Provides secure, authenticated NFC interface to access protected memory areas and trigger I2C-based device reconfiguration sequences. Use Value: Enables safe, offline updates without opening enclosures or interrupting process - leveraging NFC privacy mode and password protection. |
| Authenticity-Verified Smart Packaging | Battery-Free Wearable Trimming |
Use Scenario: Pharmaceutical blister pack verifying genuine product via smartphone scan before dispensing. IC Role / Device Role / Timing Role: Stores ECC-based originality signature and batch-specific cryptographic keys in locked configuration memory; validates authenticity during NFC read. Use Value: Prevents counterfeiting through customer-reprogrammable, tamper-evident signature - verified end-to-end without cloud dependency. |
Use Scenario: Hearing aid manufacturer performing final analog gain trimming after assembly using NFC probe. IC Role / Device Role / Timing Role: Bridges NFC commands to I2C-connected DAC or trim register; stores trimmed values in protected EEPROM for permanent retention. Use Value: Achieves precision calibration without test fixtures or battery-powered programmers - reducing production cost and cycle time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC I2C bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NTP53321G0JTZ | Includes I2C master channel and 128-bit AES mutual authentication - adds sensor-initiated reads and stronger crypto | Required for systems needing autonomous sensor polling or FIPS-aligned security compliance | Select when AES authentication or transparent I2C master capability is mandatory; otherwise NTP53121G0JTZ offers lower cost and identical footprint |
| NT3H2211W0FHKZ | Smaller 2 Kbit EEPROM (256 bytes), no SRAM, no energy harvesting PMU, TSSOP8 package - simpler, lower-cost NFC tag IC | Suitable for static data storage only (e.g., asset ID), not for sensor bridging or dynamic data exchange | Choose for pure NFC tag use cases without I2C interfacing or power harvesting requirements |
Compared with NTP53321G0JTZ, NTP53121G0JTZ omits AES and I2C master functions but retains full I2C slave, energy harvesting, and memory architecture - making it optimal for cost-sensitive, battery-free sensor link applications where advanced crypto is unnecessary. Versus NT3H2211W0FHKZ, it delivers 8× more EEPROM, SRAM buffering, and true sensor bridging capability.
Availability
NTP53121G0JTZ is available at Aetrix Electronics and suitable for smart sensor commissioning, industrial device parameterization, authenticity-verified packaging, and battery-free wearable trimming requiring stable component supply and long-term lifecycle support.
Supply support for NTP53121G0JTZ 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in NFC, RFID, and secure element technologies.
The NTAG 5 family - including NTP53121G0JTZ - was designed specifically to enable zero-power, NFC-driven sensor integration and secure cloud-onboarding for industrial and consumer edge devices.
FAQ
Does NTP53121G0JTZ support I2C master functionality?
No, NTP53121G0JTZ supports I2C slave mode only. The transparent I2C master channel is exclusive to the NTP5332 variant. NTP53121G0JTZ operates strictly as an I2C slave, enabling direct connection to sensors or MCUs but requiring external master control for I2C transactions. This distinction is confirmed in the product data sheet Section 4 ordering table and Section 8 functional description.
What is the maximum reading distance achievable with NTP53121G0JTZ?
NTP53121G0JTZ achieves up to 60 cm reading distance when used with ISO/IEC 15693-compatible industrial readers. With standard NFC-enabled smartphones, the range is limited to proximity (typically <10 cm) due to NFC Forum Type 5 Tag constraints. The 60 cm performance is enabled by its ISO/IEC 15693 compliance and optimized antenna interface (LA/LB pins), as specified in Section 2 Features and Benefits.
Can NTP53121G0JTZ supply power to external components?
No, the SO8 package variant NTP53121G0JTZ does not support energy harvesting output voltage regulation. While the IC includes an energy harvesting PMU, the VOUT pin is omitted in this package (confirmed in Figure 5 and Table 5). Power can be harvested internally for NTP53121G0JTZ operation, but no regulated output is available to drive external circuitry - unlike XQFN16/TSSOP16 variants which include VOUT.
How is memory protection implemented on NTP53121G0JTZ?
NTP53121G0JTZ implements three-tier memory protection: no protection, 32-bit password-protected access (for both NFC and I2C interfaces), and ECC-based originality signature verification. AES authentication is not supported on this variant. Protection is applied per memory area (user EEPROM, configuration, SRAM) and configured via dedicated CONFIG registers, as detailed in Sections 8.1.2 and 8.1.3 of the datasheet.
Is NTP53121G0JTZ compatible with NFC Forum-certified development tools?
Yes, NTP53121G0JTZ is fully compatible with NFC Forum-certified development tools, as the underlying NTAG 5 link platform holds NFC Forum Certification ID 58626 (stated in Section 1 General Description). Its Type 5 Tag compliance ensures interoperability with standard NFC test equipment, Android Host Card Emulation (HCE), and certified reader libraries without custom driver development.
NTP53121G0JTZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Style:
- -
- Technology:
- -
- Frequency:
- 13.56MHz
- Memory Type:
- Read/Write
- Writable Memory:
- 16kb (User)
- Standards:
- ISO 15693, NFC
- Operating Temperature:
- -40°C ~ 85°C
- Size / Dimension:
- 0.154" L x 0.193" W (3.90mm x 4.90mm)
NTP53121G0JTZ FAQ
1.How can I place an order for NTP53121G0JTZ through Aetrix?
Please submit a Request for Quotation (RFQ) for NTP53121G0JTZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for NTP53121G0JTZ reliable?
The price and inventory of NTP53121G0JTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NTP53121G0JTZ is usually 5 days.
3.What payment methods are accepted for NTP53121G0JTZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NTP53121G0JTZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NTP53121G0JTZ?
NTP53121G0JTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NTP53121G0JTZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for NTP53121G0JTZ?
For technical support, including NTP53121G0JTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NTP53121G0JTZ requirements.
6.How does Aetrix verify that NTP53121G0JTZ is sourced from the original manufacturer or authorized distributors?
All NTP53121G0JTZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NTP53121G0JTZ meets industry standards.
7.What is the process for return or replacement of NTP53121G0JTZ?
All NTP53121G0JTZ units undergo pre-shipment inspection (PSI). If there is an issue with NTP53121G0JTZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The NTP53121G0JTZ part is unused and in its original packaging.
Return procedure for NTP53121G0JTZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NTP53121G0JTZ Tags

-
SL3S1013FTB0,115
NXP Semiconductors

-
NTP53321G0JHKZ
NXP Semiconductors
-
HTSH4801ETK,118
NXP Semiconductors

-
NTA53321G0FHKZ
NXP Semiconductors

-
RF-HDT-DVBE-N2
Texas Instruments
-
RF-HDT-DVBB-N2
Texas Instruments

-
HT2DC20S20/F/RSP
NXP Semiconductors

-
TRPGR30ATGA
Texas Instruments
-
TRPGR30ATGC
Texas Instruments

-
RI-TRP-DR2B-40
Texas Instruments

-
V680-D1KP52MT
Omron Automation and Safety

-
HTMS8001FTB/AF,115
NXP USA Inc.
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

