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CR14 Datasheet(PDF) 21 Page - STMicroelectronics

No. de pieza CR14
Descripción Electrónicos  ISO14443 type-B contactless coupler chip with anti-collision and CRC management
PDF  47 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

CR14 Datasheet(HTML) 21 Page - STMicroelectronics

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CR14
CR14 I²C protocol description
Doc ID 11922 Rev 2
21/47
After reading each Byte, the CR14 waits for the master to send an ACK during the 9th bit
time. If the master does not return an ACK within this time, the CR14 terminates the data
transfer and switches to stand-by mode.
Figure 9.
CR14 I²C read modes sequences
CR14 READ
DEV SEL
DATA 1
DATA 2
DATA 3
AI12064
DATA N
ACK
ACK
ACK
R/W
ACK
NoACK
BUS Master
BUS Slave
ACK
DATA 4
CR14 READ
DEV SEL
ADDRESS
ACK
BUS Master
BUS Slave
R/W
ACK
DEV SEL
DATA 1
DATA N
ACK
ACK
R/W
ACK
NoACK
DATA 2
I²C CURRENT ADDRESS READ
I²C RANDOM ADDRESS READ



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