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部品型式

555-4403F

製品説明
仕様・特性

Features • • • • • • • • • • • • Low-power, Low-voltage Operation Contactless Power Supply Contactless Read/Write Data Transmission Radio Frequency (RF): 100 kHz to 150 kHz 264-bit EEPROM Memory in 8 Blocks of 33 Bits 224 Bits in Seven Blocks of 32 Bits are Free for User Data Block Write Protection Extensive Protection Against Contactless Malprogramming of the EEPROM On-chip Resonance Capacitor (70 or 200 pF Mask Option) Anticollision Using Answer-On-Request (AOR) Typical < 50 ms to Write and Verify a Block Other Options Set by EEPROM: – Bitrate [bit/s]: RF/8, RF/16, RF/32, RF/40, RF/50, RF/64, RF/100, RF/128 – Modulation: BIN, FSK, PSK, Manchester, Biphase – Other: Terminator Mode, Password Mode, AOR Mode Description The T5554 is a contactless R/W-IDentification IC (IDICÒ) for general-purpose applications in the 125 kHz range. A single coil, connected to the chip, serves as the IC’s power supply and bidirectional communication interface. The coil and chip together form a transponder. The on-chip 264-bit EEPROM (8 blocks 33 bits each) can be read and written blockwise from a base station. The blocks can be protected against overwriting. One block is reserved for setting the operation modes of the IC. Another block can contain a password to prevent unauthorized writing. Standard R/W IDIC (264 Bit) with Integrated Capacitance T5554 Preliminary Reading occurs by damping the coil by an internal load. There are different bitrates and encoding schemes possible. Writing occurs by interrupting the RF field in a special way. System Block Diagram Figure 1. RFID System Using T5554 Tag Base station Data Controller Power Coil interface Transponder Memory T5554 Rev. 4576A–RFID–12/02 1

ブランド

DIALIGHT

会社名

Dialight

本社国名

U.S.A

事業概要

産業用LED製品を製造。建築用LED照明器具、信号機、車両用、航空障害灯など幅広い分野の製品を開発・製造

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