10XSD200 データシートの表示（PDF） - Freescale Semiconductor
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10XSD200 Datasheet PDF : 60 Pages
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PIN ASSIGNMENT
Table 1. 10XSD200 Pin Description (continued)
The function of each pin is described in the section Functional Description
Pin
Number
Pin Name
Function
Formal Name
Definition
11
SCLK
Input
Serial Clock
This input pin is to be connected to an external SPI Clock signal. The SCLK
pin is internally connected to a pull-down current source IDWN
12
SI
Input
Serial Input
This input pin receives the SPI input data from an external device (micro-
controller or another extreme switch device in case of daisy-chaining). The SI
pin is internally connected to a pull-down current source IDWN
13
VDD
Power Digital Drain Voltage This is the positive supply pin of the SPI interface.
16
SO
Output
Serial Output
This output pin transmits SPI data to an external device (external micro-
controller or the SI pin of the next SPI device in case of daisy-chaining). The
pin doesn’t require external pull-up or pull-down resistors, but a series resistor
is recommended to limit current consumption in case of GND disconnection
14, 17, 22 GND
Ground
Ground
These pins, internally connected, are the ground pins for the logic and analog
circuitry. It is recommended to also connect these pins on the PCB.
15,18,21 VPWR
Power
Positive Power Supply These pins, internally connected, supply both the device’s power and control
circuitry (except the SPI port). The drain of both internal MOSFET switches is
connected to them. Pin 15 is the device’s primary thermal pad.
19
HS1
Output Power Switch Outputs Output pins of the switches, to be connected to the load.
20
HS0
23
SYNC
Output
Output Current
This output pin is asserted (logic low) when the Current Sense (CS) output
Monitoring
signal is within the specified accuracy range. Reading the SYNC pin allows the
Synchronization external microprocessor to synchronize to the device when operating in
autonomous operating mode. SYNC is open-drain and requires a pull-up
resistor to VDD.
Analog Integrated Circuit Device Data
Freescale Semiconductor
10XSD200
5
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