ST25TB512-AC

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13.56 MHz short-range contactless memory chip with 512-bit EEPROM and anticollision fucntions

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  • The ST25TB512-AC is a contactless memory, powered by an externally transmitted radio wave. It contains a 512-bit user EEPROM. The memory is organized as 16 blocks of 32 bits. The ST25TB512-AC is accessed via the 13.56 MHz carrier. Incoming data are demodulated and decoded from the received amplitude shift keying (ASK) modulation signal and outgoing data are generated by load variation using bit phase shift keying (BPSK) coding of a 847 kHz sub-carrier. The received ASK wave is 10% modulated. The data transfer rate between the ST25TB512-AC and the reader is 106 kbit/s in both reception and emission modes.

    The ST25TB512-AC follows the ISO 14443 - 2 Type B recommendation for the radio-frequency power and signal interface.

    Key Features

    • ISO 14443-2 Type B air interface compliant
    • ISO 14443-3 Type B frame format compliant
    • 13.56 MHz carrier frequency
    • 847 kHz subcarrier frequency
    • 106 Kbit/second data transfer
    • 8 bit Chip_ID based anticollision system
    • 2 count-down binary counters with automated anti-tearing protection
    • 64-bit Unique Identifier
    • 512-bit EEPROM with write protect feature
    • Read_block and Write_block (32 bits)
    • Internal tuning capacitor: 68 pF
    • 1 million erase/write cycles
    • 40-year data retention
    • Self-timed programming cycle
    • 5 ms typical programming time

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Technical Documentation

    • Description Version Size Action
      DS11495
      13.56 MHz short-range contactless memory chip with 512-bit EEPROM and anticollision functions
      8.0
      589.06 KB
      PDF
      DS11495

      13.56 MHz short-range contactless memory chip with 512-bit EEPROM and anticollision functions

    • Description Version Size Action
      AN2866
      How to design a 13.56 MHz customized antenna for ST25 NFC / RFID Tags
      3.0
      615.85 KB
      PDF
      AN5364
      How to protect ST25 tags from wireless power charging
      2.2
      844.22 KB
      PDF
      AN5443
      RF performance comparison of SR contactless memory chips and ST25TB series RFID tags
      1.0
      1.87 MB
      PDF
      AN2866

      How to design a 13.56 MHz customized antenna for ST25 NFC / RFID Tags

      AN5364

      How to protect ST25 tags from wireless power charging

      AN5443

      RF performance comparison of SR contactless memory chips and ST25TB series RFID tags

Presentations & Training Material

    • Description Version Size Action
      ST25TB product presentation 2.0
      939.07 KB
      PDF

      ST25TB product presentation

Publications and Collaterals

    • Description Version Size Action
      ST25TB series flyer 1.0
      135.58 KB
      PDF

      ST25TB series flyer

    • Description Version Size Action
      NFC solutions from ST 1.0
      3.29 MB
      PDF

      NFC solutions from ST

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST25TB512-AC6G6
Active
GOLD BUMPED DICE Industrial N/A

ST25TB512-AC6G6

Package:

GOLD BUMPED DICE

Material Declaration**:

PDF XML

Marketing Status

Active

Package

GOLD BUMPED DICE

Grade

Industrial

RoHS Compliance Grade

N/A

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Package
Packing Type
Temperature (°C) Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
min
max
ST25TB512-AC6G6 No availability of distributors reported, please contact our sales office GOLD BUMPED DICE Not Applicable -40 85
Active
EAR99 TAIWAN 0.06 / 10k

ST25TB512-AC6G6

Package

GOLD BUMPED DICE

Packing Type

Not Applicable

Budgetary Price (US$)*/Qty

0.06 / 10k

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.06 / 10k

ECCN (US)

EAR99

Country of Origin

TAIWAN

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors