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參數(shù)資料
| 型號： | SMARTPSE24-KIT |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 22/36頁 |
| 文件大?。?/td> | 0K |
| 描述： | KIT EVAL REF 24PORT SPI/UART |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 主要目的： | 電源管理，以太網(wǎng)供電（POE），PSE |
| 已用 IC / 零件： | Si3452，Si3482，Si3500 |
| 已供物品： | 板，線纜，CD |
| 相關(guān)產(chǎn)品： | SI3482-A01-GM-ND - IC CTLR POE 24-48PORT PSE 24-QFN 336-1830-5-ND - IC POE CONTROLLER MIDSPAN 40QFN 336-1835-5-ND - IC POE CONTROLLER MIDSPAN 40QFN 336-1829-5-ND - IC POE CONTROLLER MIDSPAN 40QFN 336-1831-5-ND - IC POE CONTROLLER MIDSPAN 40QFN 336-1834-5-ND - IC POE CONTROLLER MIDSPAN 40QFN 336-1844-5-ND - IC POE SWITCH PWR OVER LAN 20QFN 336-1833-5-ND - IC POE CONTROLLER MIDSPAN 40QFN 336-1832-5-ND - IC POE CONTROLLER MIDSPAN 40QFN |
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Si3452
Rev. 1.3
29
13
DET4
Analog I/O
Connection for port 4 detection, classification, and transient surge protection. This
pin is tied to VOUT4.
14
SDA
Digital I/O
I2C data pin
15
GND34
Ground
Ground supply for protection clamps. Short to AGND, GND12, DGND.
16
SCL
Digital I/O
I2C clock pin
17
NC
No connect
Do not connect (float).
18
DET3
Analog I/O
Connection for port 3 detection and classification. See DET4 for detailed descrip-
tion.
19
VDD
Supply
+3.3 V (±10%) isolated supply. Short to VDD pin 30.
20
VOUT3
Analog I/O
Port 3 power FET switch output. When on, provides a low impedance path to
VEE3.
21
AD3
Digital I/O
Chip address bit 3 pin, read after reset. Address set with defined resistor dividers.
Pin also used for internal communications. Short to AD3 pin 24.
22
VEE3
Supply
Driver 3 VEE supply. Short to VEE, VEE1/2/4.
23
RST
Digital input
Active low digital reset. Short to RST pin 38.
24
AD3
Digital I/O
Chip address bit 3 pin, read after reset. Address set with a 10 k
pull-up or pull-
down resistor. Also used for internal communications. Short to AD3 pin 21.
25
AD2
Digital I/O
Chip address bit 2 pin, read after reset. Address set with a 10 k
pull-up or pull-
down resistor. Also used for internal communications. Short to AD2 pin 26.
26
AD2
Digital I/O
Chip address bit 2 pin, read after reset. Address set with a 10 k
pull-up or pull-
down resistor. Also used for internal communications. Short to AD2 pin 25.
27
AD1
Digital I/O
Chip address bit 1 pin, read after reset. Address set with a 10 k
pull-up or pull-
down resistor. Also used for internal communications. Short to AD1 pin 36.
28
AD0
Digital I/O
Chip address bit 0 pin, read after reset. Address set with a 10 k
pull-up or pull-
down resistor. Also used for internal communications. Short to AD0 pin 34.
29
DGND
Ground
Digital ground reference. Short to AGND, GND12/34
30
VDD
Supply
+3.3 V isolated supply. Short to VDD pin 19.
31
VEE2
Supply
Driver 2 VEE supply. Short to VEE, VEE1/3/4.
32
VOUT2
Analog I/O
Port 2 power FET switch output. When on, provides a low impedance path to
VEE2.
33
DET2
Analog I/O
Connection for port 2 detection and classification. See DET4 for detailed descrip-
tion.
34
AD0
Digital I/O
Chip address bit 0 pin. See description for- and short to AD0 pin 28.
35
GND12
Ground
Ground supply for protection clamps. Short to AGND, GND34, DGND.
36
AD1
Digital I/O
Chip address bit 1 pin. See description for- and short to AD1 pin 27.
Table 25. Si3452 Pin Descriptions (Continued)
Pin #
Name
Type
Description
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