Schematics
UM1519
30/40
Doc ID 022813 Rev 2
Figure 12.
STM3220-21-45-46G-EVALEthernet
MI
I_
T
X
D
0
MI
I_
T
X
_E
N
MI
I_
T
X
_CLK
MI
I_
RXD
0
MI
I_
RX_E
R
MI
I_
RX_DV/RMII
_CRSD
V
MI
I_
RX_CLK
/RMI
I
_
RE
F_
C
L
K
MI
I_
C
O
L
MI
I_
CRS
MI
I_MDC
MI
I_MDI
O
X1
25MH
z (with
socket)
C14
22p
F
C15
22p
F
1
2
3
JP
5
MC
O
EN
1
GN
D
2
OU
T
3
VC
C
4
U3
SM7745HE
V
-50.0M
(do
not
fit)
+3V
3
R26
10
K
RESE
T
#
R24
0
JP
8
R40
2K
2
+3V
3
+3V
3
R25
4.87
K
R30
2K
2
+3V
3
R33
2K
2
C21
0.1u
F
C17
0.1u
F
C19
0.1u
F
C13
10u
F
R42
2K
2
MI
I_
T
X
D
1
MI
I_
T
X
D
2
MI
I_
T
X
D
3
MI
I_
RXD
1
MI
I_
RXD
2
MI
I_
RXD
3
T
X
_CLK
1
TX
_
E
N
2
T
XD_
0
3
T
XD_
1
4
T
XD_
2
5
T
XD_3/SNI
_
MOD
E
6
PWR_DOWN/I
N
T
7
NC
8
NC
9
NC
10
NC
11
NC
12
RD
-
13
RD
+
14
AG
N
D
15
TD
-
16
TD
+
17
PF
BI
N
1
18
AG
N
D
19
NC
20
NC
21
A
VDD3
3
22
PF
BOU
T
23
RB
IA
S
24
25MH
z_OUT
25
L
ED_A
C
T/C
OL
/AN_E
N
26
LED_S
PEED/AN
1
27
L
ED_L
IN
K/AN0
28
RESE
T_N
29
MDI
O
30
MDC
31
IOVDD3
3
32
X2
33
X1
34
IO
G
N
D
35
DGN
D
36
PF
BI
N
2
37
RX_CLK
38
RX_DV/MII
_MOD
E
39
CRS/CRS_DV/L
ED
_CF
G
40
RX_ER/MDI
X_E
N
41
CO
L
/P
H
YA
D0
42
RXD_0/
P
H
YA
D1
43
RXD_1/
PH
YA
D2
44
RXD_2/
PH
YA
D3
45
RXD_3/
P
H
YA
D4
46
IO
G
N
D
47
IOVDD3
3
48
U5
D
P
83848C
V
V
+3V
3
C16
0.1u
F
C27
0.1u
F
C20
0.1u
F
+3V
3
R43
1.5
K
1
2
3
JP
6
TP
1
25MH
z
TD
+
1
TC
T
4
TD
-
2
RD
+
3
RCT
5
RD
-
6
NC
7
CHS
GN
D
8
L
ED(g
reen)_A
9
L
ED(g
reen)_
K
10
L
ED(
Yello
w)_A
12
L
ED(
Yello
w)_
K
11
Shield
13
Shield
14
CN
7
J001
1D21B
R22
240
R1
240
+3V
3
C7
0.1u
F
C6
0.1u
F
+3V
3
MI
I_
IN
T
R4
1
0
R4
4
0
S
e
cond
sour
ce
: S
I-601
16-
F
RS5
51
RS3
51
RS6
51
+3V
3
Unused
in
RM
II
m
ode
RS1
2K
2
RS4
51
RS2
51
PI
1
0
PC
1
PC
2
PC
3
PA
1
PA
2
PH
2
PH
3
PA
7
PC
4
PC
5
PG
11
PH
6
PH
7
PG13
PG14
PB
1
4
PB
8
PA
8
SB1
R208
51
R212
150
AM1200
8
v1
