CR14-MQP/1GE STMicroelectronics, CR14-MQP/1GE Datasheet - Page 5

• Manufacturer Part Number: CR14-MQP/1GE
• Description: IC TYPE-B CHIP I2C ECO 16-SOIC N
• Manufacturer: STMicroelectronics

Specifications of CR14-MQP/1GE

• Rf Type: Transceiver
• Frequency: 13.56MHz
• Features: ISO14443-B
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Pin Count: 16
• Screening Level: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5719-1; 497-5719-1; 497-5719-5

CR14
List of figures
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Figure 35.
Figure 36.
Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Logic block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SO pin connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CR14 application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maximum R
I²C bus protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
CR14 I²C write mode sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
I²C polling flowchart using ACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
CR14 I²C read modes sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Host-to-CR14 transfer: I²C write to parameter register . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
CR14-to-host transfer: I²C random address read from parameter register . . . . . . . . . . . . 22
CR14-to-host transfer: I²C current address read from parameter register . . . . . . . . . . . . . 22
Host-to-CR14 transfer: I²C write to I/O frame register for ISO14443B . . . . . . . . . . . . . . . . 23
CR14-to-host transfer: I²C random address read from I/O frame register for ISO14443B 23
CR14-to-host transfer: I²C current address read from I/O frame register for ISO14443B . 24
Host-to-CR14 transfer: I²C write to slot marker register . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
CR14-to-host transfer: I²C random address read from slot marker register . . . . . . . . . . . 24
CR14-to-host transfer: I²C current address read from slot marker register . . . . . . . . . . . . 25
Wave transmitted using ASK modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
CR14 request frame character format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Request start of frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Request end of frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Wave received using BPSK sub-carrier modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Answer start of frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Answer end of frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Example of a complete transmission frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
CRC transmission rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Standard TAG command: request frame transmission. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Standard TAG command: answer frame reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Standard TAG command: complete TAG access description. . . . . . . . . . . . . . . . . . . . . . . 32
Anti-collision ST short range memory sequence (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Anti-collision ST short range memory sequence continued . . . . . . . . . . . . . . . . . . . . . . . . 34
I²C AC testing I/O waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
I²C AC waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
CR14 synchronous timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
SO16 narrow - 16 lead plastic small outline, 150 mils body width, Package outline . . . . . 42
L
value versus bus capacitance (C
Doc ID 11922 Rev 2
BUS
) for an I
²
C bus . . . . . . . . . . . . . . . . . . 11
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