RX95HF datasheet(10/44 Pages) STMICROELECTRONICS

Part #	RX95HF

Description	Near field communication transceiver for tag emulation

PDF	44 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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10 / 44 page

Power management and operating modes

RX95HF

10/44

DocID023884 Rev 3

Figure 5 shows the power-up sequence for a RX95HF device; where,



t0 is the initial wake-up delay

100 μs (minimum)



t1 is the minimum interrupt width

10 μs (minimum)



t2 is the delay for the serial interface selection

250 ns (typical)



t3 is the HFO setup time (tSU(HFO))

10 ms (maximum)



t4 is the VPS ramp-up time from 0V to VPS

200 μs (minimum) and

10 ms (max. by design validation)

Note:

VPS must be 0V before executing the start-up sequence.

The serial interface is selected after the following falling edge of pin IRQ_IN when leaving

from POR or Hibernate state.

Table 4 lists the signal configuration used to select the serial communication interface.

Table 4. Select serial communication interface selection table

Serial interface (SPI)

SSI_0

SSI_1

RX95HF Datasheet(PDF) 10 Page - STMicroelectronics