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LRI2K bảng dữ liệu(PDF) 24 Page - STMicroelectronics

tên linh kiện LRI2K
Giải thích chi tiết về linh kiện  13.56 MHz, 2048-bit EEPROM tag IC with 64-bit UID and kill code, ISO 15693 and ISO 18000-3 Mode 1 compliant
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LRI2K bảng dữ liệu(HTML) 24 Page - STMicroelectronics

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6.1.2
Low data rate
SOF comprises an unmodulated time of 226.56 µs, followed by 96 pulses at 423.75 kHz
(fC/32), and a logic 1 that consists of an unmodulated time of 75.52 µs followed by 32 pulses
at 423.75 kHz as shown in Figure 26.
Figure 26.
Start of frame, Low data rate, one subcarrier
For the Fast commands, the SOF comprises an unmodulated time of 113.28 µs followed by
48 pulses at 423.75 kHz (fC/32), and a logic 1 that includes an unmodulated time of 37.76 µs
followed by 16 pulses at 423.75 kHz as shown in Figure 27.
Figure 27.
Start of frame, Low data rate, one subcarrier x2
6.2
SOF when using two subcarriers
6.2.1
High data rate
The SOF comprises 27 pulses at 484.28 kHz (fC/28), followed by 24 pulses at 423.75 kHz
(fC/32), and a logic 1 that includes 9 pulses at 484.28 kHz followed by 8 pulses at 423.75
kHz as shown in Figure 28.
For the Fast commands, the x2 mode is not available.
Figure 28.
Start of frame, High data rate, two subcarriers
6.2.2
Low data rate
The SOF comprises 108 pulses at 484.28 kHz (fC/28) followed by 96 pulses at 423.75 kHz
(fC/32), and a logic 1 that includes 36 pulses at 484.28 kHz followed by 32 pulses at
423.75 kHz as shown in Figure 29.
For the Fast commands, the x2 mode is not available.
Figure 29.
Start of frame, Low data rate, two subcarriers
453.12µs
ai12080
151.04µs
226.56µs
ai12081
75.52µs
112.39µs
ai12082
37.46µs
449.56µs
ai12083
149.84µs



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