CR14-MQP/1GE STMicroelectronics, CR14-MQP/1GE Datasheet - Page 6

• 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

Summary description
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Summary description
The CR14 is a contactless coupler that is compliant with the short range ISO14443 type-B
standard. It is controlled using the two wire I²C bus.
The CR14 generates a 13.56 MHz signal on an external antenna. Transmitted data are
modulated using Amplitude Shift Keying (ASK). Received data are demodulated from the
PICC (Proximity integrated Coupling Card) load variation signal, induced on the antenna,
using Bit Phase Shift Keying (BPSK) of a 847kHz sub-carrier. The Transmitted ASK wave is
10% modulated. The Data transfer rate between the CR14 and the PICC is 106 Kbit/s in
both transmission and reception modes.
The CR14 follows the ISO14443 type-B recommendation for Radio frequency power and
signal interface.
The CR14 is specifically designed for short range applications that need disposable and
reusable products.
The CR14 includes an automated anti-collision mechanism that allows it to detect and
select any ST short range memories that are present at the same time within its range. The
anti-collision mechanism is based on the STMicroelectronics probabilistic scanning method.
The CR14 provides a complete analog interface, compliant with the ISO14443 type-B
recommendations for Radio-Frequency power and signal interfacing. With it, any ISO14443
type-B PICC products can be powered and have their data transmission controlled via a
simple antenna.
The CR14 is fabricated in STMicroelectronics High Endurance Single Poly-silicon CMOS
technology.
The CR14 is organized as 4 different blocks (see
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The CR14 is designed to be connected to a digital host (Microcontroller or ASIC). This host
has to manage the entire communication protocol in both transmit and receive modes,
through the I²C serial bus.
The I²C bus controller. It handles the serial connection with the application host. It is
compliant with the 400kHz I²C bus specification, and controls the read/write access to
all the CR14 registers.
The RAM buffer. It is bi-directional. . It stores all the request frame Bytes to be
transmitted to the PICC, and all the received Bytes sent by the PICC on the answer
frame.
The transmitter. It powers the PICCs by generating a 13.56MHz signal on an external
antenna. The resulting field is 10% modulated using ASK (amplitude shift keying) for
outgoing data.
The receiver. It demodulates the signal generated on the antenna by the load variation
of the PICC. The resulting signal is decoded by a 847kHz BPSK (binary phase shift
keying) sub-carrier decoder.
Doc ID 11922 Rev 2
Figure
2):
CR14