LAN9220_12 Datasheet, PDF (20/151 Pages) SMSC Corporation – 16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support

NAME
Core Voltage
Decoupling
16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support
Datasheet
Table 2.4 System and Power Signals (continued)
SYMBOL
VDD18CORE
BUFFER
TYPE
P
NUM
PINS
2
DESCRIPTION
+1.8 V from internal core regulator. Both pins
must be connected together externally. Each
pin requires a 0.01uF decoupling capacitor. In
addition, pin 2 requires a bulk 4.7uF capacitor
(<2 Ohm ESR) in parallel. These pins must not
be used to supply power to other external
devices.
PIN
NUM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PIN NAME
VDD33REG
VDD18CORE
GPIO0/nLED1
GPIO1/nLED2
GPIO2/nLED3
A7
A6
A5
A4
A3
A2
A1
FIFO_SEL
TEST
Table 2.5 56-QFN Package Pin Assignments
PIN
NUM
15
16
17
18
19
20
21
22
23
24
25
26
27
28
PIN NAME
PIN
NUM
PIN NAME
nRD
29
D6
nWR
30
VDDVARIO
nCS
31
D5
VDDVARIO
32
D4
D15
33
D3
D14
34
D2
D13
35
D1
D12
36
D0
D11
37
VDD18CORE
VDDVARIO
38
EEDIO/GPO3
D10
39
EECS
D9
40
EECLK/GPO4
D8
41
PME
D7
42
nRESET
EXPOSED PAD
MUST BE CONNECTED TO VSS
PIN
NUM
43
44
45
46
47
48
49
50
51
52
53
54
55
56
PIN NAME
IRQ
TPO-
TPO+
VDD33A
TPI-
TPI+
VDD33A
EXRES
VDD33A
AMDIX_EN
VDD18A
XTAL2
XTAL1/CLKIN
VDDVARIO
Revision 2.9 (03-01-12)
20
DATASHEET
SMSC LAN9220