Topaz 512 Card

The Topaz512 is a 13.56MHz contactless smart card chip launched by Broadcom. Its full name is “Topaz 512 – NFC Forum Type 1 Tag with 512-bit EEPROM”. It complies with the ISO/IEC 14443 Type A protocol standard and is designed for low-power, highly compatible near field communication (NFC) applications. It is widely used in smart tags and interactive scenarios.

Product Details:

Innovision Topaz 512 Card Specifications
Material PVC, PET, PET-G, PC
Size CR80 standard 86×54mm, or customized shape
Printing Blank Card, or Customized Printing
Thickness 0.84mm
Chip Innovision Topaz 512
Working Frequency 13.56 MHz
Interface RFID
Protocol ISO 14443 A, ISO 18092
UID 4 Byte UID
EEPROM 512 Byte
Reading Distance 0-10 cm
Function Read & Write
Compatible Chip Topaz 512
Lifetime >100,000 times read & write, 10 years
Applications NFC Business Card
NFC Advertising Card
Access control Card
Hotel Key Card
Loyalty Card

Descripción

Technical Specifications

Chip Model: Topaz512

Communication Protocol: ISO/IEC 14443-3 Type A, compatible with NFC Forum Type 1 Tag standard

Operating Frequency: 13.56 MHz

Data Transmission Method: ASK modulation, supports NFC device point-to-point communication

Storage Capacity:

Total Capacity: 512-bit EEPROM

User Available Space: 488-bit (partially used for system information)

Storage Structure: 12 pages × 8 bytes/page, each page can be read and written independently

Unique Identifier (UID): 7 bytes (56 bits) unique serial number, factory-fixed and unchangeable

Read/Write Cycles: 100,000 times (100,000 erase/write cycles)

Data Retention Time: Over 10 years

Operating Distance: Typical 0~5 cm, dependent on reader power and antenna design

Power supply: Passive design, powered by electromagnetic field induction from the reader

Packaging: Standard smart card (PVC) or various forms such as self-adhesive labels and epoxy labels

Key Features

NFC Forum Type 1 Compatibility: Can be directly read by all NFC-enabled smartphones (Android/iOS) without additional drivers or authentication.

Write Protection: Supports permanent lock bits to prevent tampering with critical data.

Low Power Consumption and Patch-and-Use: No battery required, suitable for smart interaction in static scenarios such as posters, packaging, and business cards.

Highly Flexible Packaging: Can be made into various forms such as cards, tags, wristbands, and keychains, supporting customized printing and pre-written UID.

Anti-Interference Design: Maintains stable communication capabilities even in metallic environments or complex electromagnetic fields (with anti-metal materials).

Supports Dynamic Interaction: Can be used to trigger phone actions such as opening web pages, making phone calls, sending text messages, and connecting via Bluetooth.

Why Choose the Topaz 512 NFC Card?

The Topaz 512 offers an outstanding balance between memory size and compatibility, making it ideal for affordable, high-frequency NFC applications. Its strong ISO compliance ensures smooth integration with most NFC-enabled devices. With 512 bytes of memory, it can store URLs, IDs, or promotional data with ease, making it an excellent choice for marketing campaigns, digital identification, or public transit.

Application Areas

• Smart Marketing: NFC smart posters, interactive product packaging, brand anti-counterfeiting verification

• Ticketing Management: Concert tickets, event admission tickets, one-time electronic tickets

• Identity Recognition: Visitor cards, temporary passes, exhibition badges

• Smart Office: NFC business cards, quick Wi-Fi connection, meeting check-in system

• Asset Management: Document and archive tracking, small device tags, library management

• Consumer Electronics: Mobile NFC payment tags, speaker quick pairing, smart home triggers

Compared to the Mifare series, the Topaz512, while having smaller storage, offers superior smartphone compatibility due to its native support for the NFC Forum standard, making it particularly suitable for lightweight, highly interactive applications.

Application areas


Technical Specifications

Attribute Details
Material PVC, PET, PET-G, PC
Size CR80 standard (86×54mm), custom sizes available
Chip Topaz 512 (ST SRI512)
Frequency 13.56MHz
Memory 512 bytes EEPROM (16 blocks, 32 bits per block)
Protocols ISO14443 A, ISO18092
Power Supply Passive, powered by an external radio wave

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