Rainbow-electronics MAX14821 Manual do Utilizador descarregar pdf (Página 7)

�� Maxim Integrated Products 7

MAX14821

IO-Link Device Transceiver

AC ELECTRICAL CHARACTERISTICS (continued)

= 18V to 36V, V

= 2.3V to 5.5V, V

GND

= 0V; all logic inputs at V

or GND; T

= -40NC to +85NC, unless otherwise noted. Typical

values are at V

= 24V, V

= 3.3V, and T

= +25NC, unless otherwise noted.) (Note 2)

Note 2: All devices are 100% production tested at T

= +25NC. Limits over the operating temperature range are guaranteed by

design.

Note 3: UV is an open-drain output. Connect UV to a voltage less than 5.5V through an external pullup resistor.

Note 4: Disable time measurements are load dependent.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

SPI TIMING (CS, SCLK, SDI, SDO) (Figure 6)

SCLK Clock Period t

CH+CL

83.3 ns

SCLK Pulse-Width High t

41.65 ns

SCLK Pulse-Width Low t

41.65 ns

CS Fall to SCLK Rise Time

CSS

20 ns

SCLK Rise to CS Rise Hold Time

CSH

20 ns

SDI Hold Time t

10 ns

SDI Setup Time t

10 ns

Output Data Propagation Delay t

32 ns

SDO Rise and Fall Times t

20 ns

Minimum CS Pulse

CSW

76.8 ns

1 2 3 4 5 6 7 8 9 10 11 12 ... 28 29

MAX14821 1
IO-Link Device Transceiver 1

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