ST25TB512-AT

量産中
Design Win Education

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

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製品概要

概要

The ST25TB512-AT is a contactless memory, powered by an externally transmitted radio wave. It contains a 512-bit user EEPROM. The memory is organized as 128 blocks of 32 bits. The ST25TB512-AT 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-AT and the reader is 106 kbit/s in both reception and emission modes.

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

The ST25TB512-AT is specifically designed for short range applications that need re-usable products. The ST25TB512-AT includes an anticollision mechanism that allows it to detect and select tags present at the same time within range of the reader. The anticollision is based on a probabilistic scanning method using slot markers.

The ST25TB512-AT contact-less EEPROM can be randomly read and written in block mode (each block containing 32 bits). The instruction set includes the following nine commands:

The ST25TB512-AT memory is organized in three areas, as described in Table 1. The first area is a resettable OTP (one time programmable) area in which bits can only be switched from 1 to 0. Using a special command, it is possible to erase all bits of this area to 1. The second area provides two 32-bit binary counters which can only be decremented. The last area is the EEPROM memory. It is accessible by block of 32 bits and includes an auto-erase cycle during each Write_block command.

Die floor plan and physical options related to the die assembly are described in Figure 2.

For the option 1 of the die assembly, the CTUN (referenced in Table 2) can increase from 0.5pF to 1pF. The option 2 of the die assembly is showing a tripod which can be used for physical stability, having no impact on CTUN parameter.

  • 特徴

    • 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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製品型番 マーケティング・ステータス パッケージ グレード RoHSコンプライアンスグレード 材料宣誓書**
ST25TB512-AT6F6
量産中
75UM GOLD BUMPED DICE インダストリアル N/A
ST25TB512-AT6G6
量産中
GOLD BUMPED DICE インダストリアル N/A

ST25TB512-AT6F6

Package:

75UM GOLD BUMPED DICE

Material Declaration**:

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量産中

Package

75UM GOLD BUMPED DICE

Grade

Industrial

RoHS Compliance Grade

N/A

ST25TB512-AT6G6

Package:

GOLD BUMPED DICE

Material Declaration**:

PDF XML

Marketing Status

量産中

Package

GOLD BUMPED DICE

Grade

Industrial

RoHS Compliance Grade

N/A

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Available at distributors

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ST25TB512-AT6F6
Available at distributors

販売代理店在庫 ST25TB512-AT6F6

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク

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販売代理店に在庫がない場合は、STのセールス・オフィスまでお問い合わせください

75UM GOLD BUMPED DICE Not Applicable TAIWAN EAR99 NEC - -

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ST25TB512-AT6G6 量産中

Budgetary Price (US$)*/Qty:
-
パッケージ:
GOLD BUMPED DICE
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Tray
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-
Country of Origin:
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EAR99
ECCN (EU):
NEC

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ST25TB512-AT6G6

Operating Temperature (°C)

最小:

-

最大:

-

Free Samples:

-

ESample Max Qty:

-

ST25TB512-AT6F6 量産中

Budgetary Price (US$)*/Qty:
-
パッケージ:
75UM GOLD BUMPED DICE
梱包タイプ:
Not Applicable
RoHS:
-
Country of Origin:
TAIWAN
ECCN (US):
EAR99
ECCN (EU):
NEC

製品型番:

ST25TB512-AT6F6

Operating Temperature (°C)

最小:

-

最大:

-

Free Samples:

-

ESample Max Qty:

-

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