LRI2K_08 datasheet(22/89 Pages) STMICROELECTRONICS

Il numero della parte	LRI2K

Spiegazioni elettronici	2048-bit EEPROM tag IC at 13.56 MHz, with 64-bit UID and kill code, ISO 15693 and ISO 18000-3 Mode 1 compliant

PDF	89 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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22 / 89 page

Bit representation and coding

LRI2K

22/89

5.2

Bit coding using two subcarriers

5.2.1

High data rate

A logic 0 starts with 8 pulses at 423.75 kHz (fC/32) followed by 9 pulses at 484.28 kHz

(fC/28) as shown in Figure 20. For the Fast commands, the x2 mode is not available.

Figure 20.

Logic 0, high data rate

A logic 1 starts with 9 pulses at 484.28 kHz (fC/28) followed by 8 pulses at 423.75 kHz

(fC/32) as shown in Figure 21. For the Fast commands, the x2 mode is not available.

Figure 21.

Logic 1, high data rate

5.2.2

Low data rate

A logic 0 starts with 32 pulses at 423.75 kHz (fC/32) followed by 36 pulses at 484.28 kHz

(fC/28) as shown in Figure 22. For the Fast commands, the x2 mode is not available.

Figure 22.

Logic 0, low data rate

A logic 1 starts with 36 pulses at 484.28kHz (fC/28) followed by 32 pulses at 423.75kHz

(fC/32) as shown in Figure 23. For the fast commands, the x2 mode is not available.

Figure 23.

Logic 1, low data rate

37.46µs

ai12074

37.46µs

ai12073

149.84µs

ai12072

149.84µs

ai12075

LRI2K Scheda tecnica(PDF) 22 Page - STMicroelectronics