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PD69200 bảng dữ liệu(PDF) 11 Page - Microchip Technology

tên linh kiện PD69200
Giải thích chi tiết về linh kiện  PoE PSE Controller
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
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PD69200 bảng dữ liệu(HTML) 11 Page - Microchip Technology

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Number
Designation
Type
Description
20
I2C0_SCL
IN/OUT
I2C clock from the host master. Speed is limited
to 400 KHz. Clock stretch required. Pull-up
required, see AN3361 for details.
21
I2C0_SDA
IN/OUT
I2C bidirectional data. 15-byte protocol
messages are transmitted on this line. A pull up
is required. See AN3361 for more details.
22
I2C_ADDR_MEAS
Analog_IN
Analog input to determine I2C address or UART
operation.
23
Reserved
Connect to GND
24
xI2C_MESSAGE_READY
OUT
I2C message ready for reading by the host. The
controller asserts this line low when it has an
answer to the host. Therefore, the host can poll
this line and initiate an I2C read cycle only
when the message is ready. This pin is active
low.
After the host reads the data from the
controller, this pin is asserted to high.
25
xINT_OUT
OUT
Interrupt output indication. This line is asserted
low when a pre-configured event is in progress.
This pin is active low.
26
xLED_CS
OUT
Chip select signal for LED stream. This pin is
active low.
27
xLED_LATCH
OUT
Latch signal for LED stream. This pin is active
low.
28
xLED_OE
OUT
Output enable signal for LED stream. This pin
is active low.
29
Reserved
Analog_IN
Reserved Analog_IN. Connect to 3.3 V.
30
FAN_CONTROL
OUT
Logic out that may be used to control a fan
driver. This pin is active high.
31
xDISABLE_PORTS
IN
Disable all PoE ports. When this input is
asserted low, the controller shuts down all of
the PoE ports in the system. See AN3361 for
pin connection requirements. (Active Low)
32
xSys_OK/LED System OK
OUT
System validity indication. The behavior of this
output is controlled by individual software
mask. (Active Low)
ePAD
ePAD
Connect to VSSA. Sufficient copper mass is
needed to ensure adequate thermal
performance.
PD69200
Pin Descriptions
© 2020 Microchip Technology Inc.
Datasheet
DS00003460A-page 11



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