NXP Semiconductors NTP53321G0JTZ
- Part No.:
- NTP53321G0JTZ
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID Transponders, Tags
- Package:
- Datasheet:
-
NTP53321G0JTZ.pdf
- Description:
- NTAG
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
NTP53321G0JTZ from NXP Semiconductors is an NFC Forum-compliant Type 5 Tag IC with integrated I2C master/slave interface, 2048-byte EEPROM, 256-byte SRAM, AES-128 mutual authentication, and energy harvesting capability. It operates at 13.56 MHz, supports ISO/IEC 15693 long-range communication (up to 60 cm), and enables zero-power sensor readout in batteryless applications such as smart sensors and industrial calibration.
For engineers reviewing the NTP53321G0JTZ datasheet, NTP53321G0JTZ pinout, NTP53321G0JTZ application, or NTP53321G0JTZ equivalent, this page delivers verified technical context, exact package mapping (SO8, SOT96-1), validated pin functions, memory partitioning behavior, security-level differentiation versus NTP5312 variants, and real-world interoperability constraints for NFC-enabled commissioning, firmware download, and authenticity verification.
Technical Context
The NTP53321G0JTZ implements a dual-interface architecture: an ISO/IEC 15693/NFC Forum Type 5 RF front-end coupled with a configurable digital interface supporting I2C slave (100/400 kHz), transparent I2C master channel, event detection, PWM generation, and GPIO control. Its memory subsystem includes three protected zones-user EEPROM (2048 B), configuration area (configurable access keys, AES keys, originality signature), and volatile SRAM (256 B)-all accessible via both interfaces with independent protection schemes.
Security is implemented hierarchically: NFC-side protections include 32-/64-bit passwords, NFC PRIVACY mode, and optional 128-bit AES mutual authentication (enabled only on NTP5332 variants); I2C-side protections use separate read/write passwords and lockable configuration sections. Energy harvesting provides up to 30 mW output with configurable voltage, enabling direct powering of external sensors without local batteries.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Standard Compliance | ISO/IEC 15693 and NFC Forum Type 5 Tag compliant; certified (ID: 58626) for NFC Forum interoperability |
| User Memory | 2048 bytes EEPROM organized in 4-byte blocks; supports independent protection per memory area |
| SRAM | 256 bytes volatile RAM mapped to address 0x2000–0x203F via I2C; used for fast pass-through data transfer |
| Security Features | AES-128 mutual authentication (NTP5332 only); ECC-based reprogrammable originality signature; 32-/64-bit password protection per interface |
| Energy Harvesting | Configurable output voltage; up to 30 mW power delivery; enables zero-power sensor interface without battery |
| Operating Temperature | −40 °C to +105 °C for EEPROM read/SRAM/register access; −40 °C to +85 °C for EEPROM write |
| Supply Voltage Range | 1.62 V to 5.5 V for VCC-supplied operation; also supports field-powered (no VCC required) mode |
Pinout & Package
Package: SO8, plastic small outline package, 8 leads, 1.27 mm pitch, 4.9 mm × 3.9 mm × 1.75 mm body (SOT96-1). HPD and VOUT pins are not available in SO8 package.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference; must be connected to system ground |
| 2 | LA | Antenna connection (low-side); requires matching network for 13.56 MHz resonance |
| 3 | LB | Antenna connection (high-side); forms differential antenna interface with LA |
| 4 | GND | Ground reference; must be connected to system ground |
| 5 | SDA/GPIO1/PWM1 | Multiplexed I2C data line / general-purpose I/O / PWM output channel 1 |
| 6 | SCL/GPIO0/PWM0 | Multiplexed I2C clock line / general-purpose I/O / PWM output channel 0 |
| 7 | ED/PWM0 | Multiplexed event detection input / alternate PWM0 output; triggers on external signal edge |
| 8 | VCC | External power supply input; enables VCC-supplied operation and SRAM retention |
Key Features
| Feature | Design Value |
|---|---|
| Transparent I2C Master Channel | Enables direct readout of I2C sensors (e.g., temperature, humidity) without MCU intervention; supports zero-power operation |
| Three-Partition Memory Protection | User EEPROM, configuration area, and SRAM each support independent security policies-no password, 32-bit, 64-bit, or AES-128-enabling differentiated access control |
| Reprogrammable Originality Signature | ECC-based signature stored in configuration memory (blocks 00h–07h); verifiable by host NFC device and lockable by customer for anti-counterfeiting |
| Pass-Through Data Transfer Mode | Uses 256-byte SRAM buffer to relay data between NFC reader and I2C slave; eliminates need for host processor during dynamic pairing or firmware update |
| Low-Power Standby Operation | Typical standby current <6 µA; hard power-down current <0.25 µA-critical for energy-harvesting and batteryless deployments |
Applications
| Smart Sensor Commissioning | Industrial Calibration |
|---|---|
Use Scenario: Factory-floor NFC tap configures sensor parameters (gain, offset, sampling rate) before deployment. IC Role / Device Role / Timing Role: Acts as secure, standards-compliant bridge between NFC-enabled tablet and I2C sensor; handles encrypted parameter loading and authenticity verification. Use Value: Eliminates manual wiring or dedicated programming fixtures; reduces setup time by >90% while ensuring traceable, tamper-evident configuration. |
Use Scenario: Field technician uses smartphone to read calibration coefficients stored in NTP53321G0JTZ and apply them to measurement circuitry. IC Role / Device Role / Timing Role: Provides authenticated, password-protected access to calibration data stored in protected EEPROM area; supports AES-secured readout. Use Value: Prevents unauthorized coefficient modification; enables offline calibration verification without cloud dependency or proprietary tools. |
| LED Driver Configuration | NFC Charging Handshake |
Use Scenario: Lighting fixture manufacturer embeds NTP53321G0JTZ to store LED binning data and driver settings; installer taps NFC phone to auto-configure driver IC. IC Role / Device Role / Timing Role: Stores and delivers driver-specific configuration (PWM frequency, current limit) via pass-through SRAM mode to I2C-connected LED controller. Use Value: Enables plug-and-play compatibility across LED variants; removes need for factory pre-programming or jumper-based selection. |
Use Scenario: Wireless charging pad uses NTP53321G0JTZ to exchange authentication tokens and power profile negotiation data with NFC-enabled wearable. IC Role / Device Role / Timing Role: Performs mutual AES authentication and secure data exchange using SRAM buffer; acts as trusted identity anchor during charging handshake. Use Value: Prevents counterfeit chargers from delivering unsafe voltage/current; ensures compliance with Qi/NFC Forum power negotiation protocols. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC I2C bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NTP53121G0JTZ | Lacks I2C master channel and AES-128 mutual authentication; supports only I2C slave mode and 32-/64-bit password protection | Suitable for basic NFC parameterization where sensor readout is handled by MCU-not for zero-power or high-security use cases | Select when cost sensitivity outweighs need for transparent I2C master or AES-level security |
| NT3H2221W0FHKZ | Offers 2 kB EEPROM and I2C slave only; no AES, no I2C master, no energy harvesting; supports NFC Forum Type 4 (ISO/IEC 14443-A) | Designed for mobile payment proximity use cases; incompatible with ISO/IEC 15693 readers and long-range industrial scanning | Select only for NFC-enabled consumer devices requiring Type 4 interoperability-not for industrial sensor bridging |
Compared with NTP53121G0JTZ and NT3H2221W0FHKZ, the NTP53321G0JTZ uniquely combines ISO/IEC 15693 long-range support, transparent I2C master functionality, and AES-128 mutual authentication-making it the sole option for secure, batteryless, factory-to-field sensor commissioning in industrial environments.
Availability
NTP53321G0JTZ is available at Aetrix Electronics and suitable for smart sensor commissioning, industrial calibration, LED driver configuration, and NFC charging handshake applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for NTP53321G0JTZ 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 product line-including NTP53321G0JTZ-is designed specifically for sensor-equipped systems requiring standards-compliant, low-power NFC bridging between contactless readers and I2C peripherals, with emphasis on zero-power operation and end-to-end authenticity.
FAQ
What is the primary function of NTP53321G0JTZ in a sensor system?
The NTP53321G0JTZ serves as an NFC-to-I2C bridge that enables secure, standards-compliant communication between an NFC-enabled device (e.g., smartphone or industrial reader) and an I2C sensor or peripheral. It supports transparent I2C master mode for zero-power sensor readout, AES-128 mutual authentication, and energy harvesting-making NTP53321G0JTZ ideal for batteryless commissioning, calibration, and firmware updates in industrial and smart home applications.
Does NTP53321G0JTZ support both NFC and ISO/IEC 15693 readers?
Yes, NTP53321G0JTZ is fully compliant with both NFC Forum Type 5 Tag specifications and ISO/IEC 15693 standards. It can be read/written by NFC-enabled smartphones in proximity range (<10 cm) and by ISO/IEC 15693 industrial readers at distances up to 60 cm. This dual-mode capability allows NTP53321G0JTZ to support factory-floor programming (long-range) and end-user interaction (short-range) within the same hardware design.
How does the transparent I2C master channel in NTP53321G0JTZ work?
The transparent I2C master channel in NTP53321G0JTZ allows direct communication with I2C slave devices-such as temperature or humidity sensors-without requiring an external MCU. When triggered by an NFC command or event detection pin, NTP53321G0JTZ initiates an I2C transaction, reads sensor data into its 256-byte SRAM, and makes it available to the NFC reader. This enables true zero-power sensor readout, as NTP53321G0JTZ draws energy solely from the NFC field during operation.
What memory protection options are available on NTP53321G0JTZ?
NTP53321G0JTZ supports granular, independent memory protection across three areas: user EEPROM (2048 B), configuration memory (including AES keys and originality signature), and SRAM (256 B). Protection levels include no protection, 32-bit or 64-bit password access, and full 128-bit AES mutual authentication-available only on NTP5332 variants like NTP53321G0JTZ. Each area can be locked separately, and configuration blocks may be permanently disabled after programming.
Can NTP53321G0JTZ operate without an external power supply?
Yes, NTP53321G0JTZ supports field-powered operation: it harvests energy directly from the 13.56 MHz RF field of an NFC or ISO/IEC 15693 reader to power internal circuitry and perform I2C transactions. In this mode, it requires no VCC connection and draws zero quiescent current from the host system. Additionally, its energy harvesting output (VOUT) can supply up to 30 mW to external components-though VOUT is not available in the SO8 package (NTP53321G0JTZ).
NTP53321G0JTZ 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)
NTP53321G0JTZ FAQ
1.How can I place an order for NTP53321G0JTZ through Aetrix?
Please submit a Request for Quotation (RFQ) for NTP53321G0JTZ 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 NTP53321G0JTZ reliable?
The price and inventory of NTP53321G0JTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NTP53321G0JTZ is usually 5 days.
3.What payment methods are accepted for NTP53321G0JTZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NTP53321G0JTZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NTP53321G0JTZ?
NTP53321G0JTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NTP53321G0JTZ 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 NTP53321G0JTZ?
For technical support, including NTP53321G0JTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NTP53321G0JTZ requirements.
6.How does Aetrix verify that NTP53321G0JTZ is sourced from the original manufacturer or authorized distributors?
All NTP53321G0JTZ 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 NTP53321G0JTZ meets industry standards.
7.What is the process for return or replacement of NTP53321G0JTZ?
All NTP53321G0JTZ units undergo pre-shipment inspection (PSI). If there is an issue with NTP53321G0JTZ, 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 NTP53321G0JTZ part is unused and in its original packaging.
Return procedure for NTP53321G0JTZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NTP53321G0JTZ Tags

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SL3S1013FTB0,115
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