PLUG-CR95HF-B STMICROELECTRONICS | Alldatasheet
Document overview
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- PDF pages: 5
Technical content
Features
■ Ready-to-use printed circuit board including – CR95HF multi-protocol transceiver IC – 47 x 34 mm 13.56 MHz inductive etched antenna and tuning components – SPI or UART connector for communication with the host
Description
The PLUG-CR95HF-B includes a CR95HF contactless transceiver, a 47 x 34 mm 13.56 MHz inductive etched antenna and its associated tuning components. The user must connect a host to the board through the UART or the SPI connector. It allows to control the 13.56 MHz CR95HF multi-protocol transceiver IC from the host. The CR95HF acts as a slave. The host can configure the transceiver and send SPI or UART commands. The PLUG-CR95HF-B board is powered through the VPS pin. Figure 1. Functional block diagram
1 Hardware configuration
the SPI serial interface (see Figure 2, and Table 1). Figure 2. Top view of the PLUG-CR95HF-B Figure 3. PLUG-CR95HF-B connector Table 1. Solder bridge configuration
Refer to the CR95HF datasheet for a description of the signals. Table 2. Description of connector signals
1 UART_TX and IRQOUT UART transmit pin/interrupt output for CR95HF
2 UART_RX and IRQIN UART receive pin/interrupt input for CR95HF
3 SPI_SS (NSS) SPI slave select
4 SPI_MISO SPI data, slave output
5 SPI_MOSI SPI data, slave input
6 SPI_SCK SPI serial clock
7 VPS and VPS_TX Main power supply/power supply for RF drivers
8 GND Ground
2 Revision history
Table 3. Document revision history 13-Feb-2012 1 Initial release. Description of connector signals.