MAX14827 Datasheet, PDF (21/41 Pages) Maxim Integrated Products – Integrated LED Driver

MAX14827
IO-Link Device Transceiver
Pin Description (continued)
PIN
TQFN WLP
NAME
PIN
PARALLEL MODE
DESCRIPTION ^{(SPI/PIN = high)}
UARTSEL = Low
FUNCTION
MULTIPLEXED
MODE
(SPI/PIN = high)
UARTSEL = high
PIN MODE
(SPI/PIN = low)
22
E3
CLK/
TXEN/
200MA
SPI Clock
Input/
UART TXEN
Input/
Current Limit
Setting Input
SPI clock input
When CS/PP is high, the
SPI interface is disabled
and UART interface
mode is enabled. Drive
CLK/TXEN/200MA high
to enable the C/Q driver.
Drive CLK/TXEN/200MA
high to enable a 200mA
current limit on the C/Q and
DO driver outputs. Drive
CLK/TXEN/200MA low to
set the current limit for the
driver outputs to 100mA.
23
D2
SPI/PIN
SPI or Pin-
Mode Select
Input
Drive SPI/PIN high for SPI or UART interface operation. Drive SPI/PIN low
for pin-mode operation.
When CS/PP is high,
24
E2
SDI/TX/
NPN
SPI Serial Data
Input/
TX Logic Input/
NPN Driver
Mode Select
Input
SPI serial data
input
the SPI interface is
disabled and UART
interface mode is
enabled. Drive SDI/
TX/NPN to switch C/Q.
C/Q is the logic inverse
of the SDI/TX/NPN
Drive SDI/TX/NPN high to
set the C/Q and DO driver
outputs in NPN mode. Drive
SDI/TX/NPN low to set the
driver outputs in PNP mode.
SDI/TX/NPN is ignored when
the CS/PP input is high.
input.
EP
-
EP
Exposed pad. Connect to ground. Not intended as the main ground connection.
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