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UHF RFID Chips by NXP Semiconductors

  • Akansha Sharma
  • Jan 23, 2024
  • RFID
UHF RFID Chips by NXP Semiconductors

NXP Semiconductors is at the forefront of RFID technology, continually pushing the boundaries of what is possible. With their extensive expertise and dedication to innovation, they have become a trusted name in the industry, manufacturing world-class integrated circuits.
Their product lineup includes passive and active RFID chips, RFID tags, readers, and software platforms. These components can be seamlessly integrated into existing systems or used to develop new solutions from scratch. There are various other RFID manufacturing companies such as
Alien Technology and Impinj Inc. as well that offer cutting edge RFID ICs for cost-effective RFID implementation in businesses.

NXP Semiconductors' RFID chips are known for their high performance, durability, and reliability. Whether it's for inventory management, supply chain optimization, access control, or any other RFID application, NXP Semiconductors offers a plethora of solutions to meet the unique needs of businesses.

UHF RFID Chips by NXP Semiconductors: UCODE


UCODE RAIN RFID ICs designed and manufactured by NXP Semiconductors enable identification, location, authentication, and engagement of items. These passive UHF RFID chips deliver high levels of accuracy and new ways to identify, locate, authenticate, and engage each item anywhere along its journey from production to the final sale and beyond.

UCODE ICs have high read sensitivity, fast programming capabilities, and security features, utilized in a variety of industries, including retail, supply chain and logistics, airlines and airports, manufacturing, and automotive.

UCODE Series of RAIN RFID Microchips

Let’s look at the collections of UCODE RFID chips and their features in detail:

UCODE Series: UCODE series can easily handle multi-tasking work and processes. These chips accelerate the Internet of Things for billions of goods. They are best suited for RFID applications in Retail, Logistics, and Aviation.

It has several types of chips in this series:

1. UCODE 9xe (UCODE 9 with more EPC Memory): It is an advanced version of UCODE 9 RFID IC, which has higher 128 bits EPC memory capacity than UCODE 9. It can encode information like expiration date or production information, directly on the IC. The expansion in memory capacity enables IoT applications to be even smarter than before.

Features of UCODE 9xe

1. Read sensitivity: -24 dBm

2. Write sensitivity: -22 dBm

3. EPC Memory: 128 bits

4. TID memory: 96 bits

5. Drop-in replacement for UCODE 9 / UCODE 8

6. Pre-serialization of 96-bit EPC

Applications: Automated tool management, Industrial supply chain tracking, Item level tracking in the supply chain, etc.

2. UCODE 9 (Accelerates the IoT): They are designed to boost the performance of RFID tagging applications so that retailers and logistics companies can accelerate their IoT adoption. Furthermore, UCODE 9 allows for the reuse of existing UCODE 8 inlay antenna designs, providing a simple migration path from UCODE 8 to UCODE 9.

Features of UCODE 9

1. Read sensitivity: -24 dBm

2.Write sensitivity: -22 dBm

3. EPC memory: 96 bits

4. Encoding speed: 32 bits in 0.96 ms

5. Drop-in antenna replacement for UCODE 8

6. Supports pre-serialization of 96-bit EPC

7. 100k write cycle endurance

8. 96-bit Tag Identifier (TID) factory-locked

Applications: Inventory and supply chain management, Retail apparel, Smart parcel services, etc.

3. UCODE 8/8m: UCODE 8/8m offers high performance and is well suited for inventory management applications, e.g. Retail and Fashion. With its proven RF performance, UCODE 8/8m can read RFID tags at long distances and keep the inventory of dense RFID tags up-to-date. It also provides a Self Adjust Feature, a Product Status Flag for Electronic Article Surveillance (EAS) applications.

Features of UCODE 8 and UCODE 8m

1. Read sensitivity: -23 dBm

2. Write sensitivity: -18 dBm

3. EPC memory: 128-bit/96-bit (UCODE 8/UCODE 8m)

4. Supports pre-serialization for 96-bit EPC

5. 96-bit Tag Identifier (TID) factory locked

6. 48-bit unique serial number factory-encoded into TID

7. 0-bit/32-bit (UCODE 8/UCODE 8m) User Memory

Applications: Baggage tagging, Brand protection, Inventory and supply chain management, etc.

4. UCODE with Cryptography: A highly secure UCODE series of RFID ICs which combines cryptographic AES authentication with a long read range to increase security for smart city use cases. They are suitable for applications like Automatic vehicle identification, Smart logistics, Brand protection, etc.

5. UCODE DNA RAIN RFID: UCODE DNA RAIN RFID (UHF) tag IC supports use cases that require long read ranges of up to 15 meters. The IC combines high contactless performance with cryptographic security to enable a wide range of Smart City applications, including asset tagging, autonomous vehicle identification, access control, and supply chain management.


1. Read sensitivity: -19 dBm

2. AES authentication sensitivity: -18 dBm

3. Write sensitivity: -11 dBm

4. Encoding speed: 32 bits per 1.5 milliseconds

5. Encoding mode: 100 items in 60 milliseconds

6. Minimum 100,000 write cycle endurance

7. EPC memory: 224 bits

8. User Memory of 3072 bits

9. Supports self-pre-serialization for 96-bit EPC

10. 96-bit Tag Identifier(TID) factory locked

Applications: Access management, Automatic vehicle identification, Baggage tagging, Brand protection, etc.

6. UCODE DNA Track: They are designed to prove product authenticity to their customers. During the RAIN RFID inventory count, UCODE DNA Track verifies the originality, so that merchants can tell if a branded product is authentic and appropriately sourced.

Features of UCODE DNA Track

1. Read sensitivity: -19 dBm

2. AES authentication sensitivity: -18 dBm

3. Write sensitivity: -11 dBm

4. Encoding speed: 32bits per 1.5 milliseconds

4. 448 bit of EPC memory

5. Pre-serialization for 96-bit EPC

6. 96-bit Tag Identifier (TID) factory locked

7. 256bit User Memory

8. Minimum 100,000 write cycle endurance

Applications: Retail, hospitals, and pharmaceutical.

UCODE with Memory: UCODE with Memory enables data storing with up to 2-kbit user memory for applications including Industry 4.0 and Aviation.

1. UCODE 9xm: The UHF RFID UCODE 9xm RFID chip by NXP supports high-performance solutions in industrial and manufacturing environments, offering high performance and an enhanced feature set with three flexible memory configurations. 

Features of UCODE with Memory
1. Read sensitivity: -24 dBm

2. Write sensitivity: -22 dBm

3. Up to 496 bits EPC memory

4. Up to 752 bits user memory

5. TID memory of 96-bits

6. 100k write cycle endurance

2. UCODE (7xm-1k, 7xm-2k and 7xm+): The UCODE 7xm series is the most recent iteration of NXP's memory UHF tag ICs. With its read range, the UCODE 7xm is ideal for applications that require a large read range as well as extended user memory to store data specific to customers or products.

Features of UCODE (7xm-1k, 7xm-2k and 7xm+)

1. Read sensitivity: -19 dBm

2. Write sensitivity: -12 dBm

3. Encoding speed: 32 bits per 1.5 milliseconds

4. Up to 2-kbit user memory

5. Up to 448-bit of EPC memory

6. Supports Pre-serialization for 96-bit EPC

7. 96-bit Tag Identifier (TID) factory locked

8. Minimum 100.000 write cycle endurance

Applications: Logistics, Brand protection (luxury branded fashion goods), Process automation, etc.

3. UCODE G2iM and G2iM+: In addition to the leading-edge read range, NXP's UCODE G2iM series transponder ICs provide a Tag Tamper Alarm, Data Transfer, Digital Switch, sophisticated privacy-protection modes. 

Features of UCode G2iM and G2iM+

1. Up to 640-bit User Memory

2. With UCODE G2iM, the EPC is 256 bits and with UCODE G2iM+, it is 448 bits

3. 96-bit Tag Identifier (TID)

4. PSF (Product Status Flag) Alarm

5. Read protection

6. A high chip sensitivity allows for small label sizes and long read ranges

Applications: Market Fashion (apparel and footwear) Retail Electronics, Fast moving consumer goods (FMCG), Asset management, Electronic vehicle identification, etc.

To conclude, RFID chips have revolutionized the way we interact with objects and systems around us. NXP Semiconductors is leading the charge in RFID technology, offering state-of-the-art RFID chips and solutions that enable businesses to improve efficiency and enhance security with applications ranging from inventory management and supply chain optimization to contactless payments and access control systems.

Disclaimer: The information presented here is for general information purposes only and true to best of our understanding. Users are requested to use any information as per their own understanding and knowledge. Before using any of the information, please refer to our Privacy Policy and Terms and Conditions.

  • Created on Jan 23, 2024

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