W5500 Datasheet, PDF (8/65 Pages) List of Unclassifed Manufacturers – Supports 8 independent sockets simultaneously

Table 2. W5500 Pin Description
Pin No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Symbol
TXN
TXP
AGND
AVDD
RXN
RXP
DNC
AVDD
AGND
EXRES1
AVDD
-
-
AGND
AVDD
AGND
AVDD
VBG
AGND
TOCAP
AVDD
1V2O
Internal
Type
Bias¹
Description
-
AO TXP/TXN Signal Pair
-
AO The differential data is transmitted to the media on the
TXP/TXN signal pair.
-
GND Analog ground
-
PWR Analog 3.3V power
-
AI RXP/RXN Signal Pair
-
AI The differential data from the media is received on the
RXP/RXN signal pair.
-
AI/O Do Not Connect Pin
-
PWR Analog 3.3V power
-
GND Analog ground
-
AI/O External Reference Resistor
It should be connected to an external resistor (12.4KΩ,
1%) needed for biasing of internal analog circuits.
Refer to the „External reference resistor‟ (Figure.2) for
details.
-
PWR Analog 3.3V power
- NC
- NC
-
GND Analog ground
-
PWR Analog 3.3V power
-
GND Analog ground
-
PWR Analog 3.3V power
-
AO Band Gap Output Voltage
This pin will be measured as 1.2V at 25℃.
It must be left floating.
-
GND Analog ground
-
AO External Reference Capacitor
This pin must be connected to a 4.7uF capacitor.
The trace length to capacitor should be short to
stabilize the internal signals.
-
PWR Analog 3.3V power
-
AO 1.2V Regulator output voltage
1 _{Internal Bias after hardware reset}
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W5500 Datasheet Version1.0 (August 2013)