1
2
3
4
A
B
C
D
4
3
2
1
D
C
B
A
www.PowerMCU.com
Designed by HAOYU Electronics
VDD2A
1
LED2/nINTSEL
2
LED1/REGOFF
3
XTAL2
4
XTAL1/CLKIN
5
VDDCR
6
RXD1/MODE1
7
RXD0/MODE0
8
VDDIO
9
RXER/PHYAD0
10
CRS_DV/MODE2
11
MDIO
12
MDC
13
nINT/REFCLKO
14
nRST
15
TXEN
16
TXD0
17
TXD1
18
VDD1A
19
TXN
20
TXP
21
RXN
22
RXP
23
RBIAS
24
U2
LAN8720A
1CT:1CT
1CT:1CT
RD+
3
RD-
6
RCT
5
G+
9
G-
10
TCT
4
TD-
2
TD+
1
Y-
11
Y+
12
GND
13
Green LED
Yellow LED
1
4&5
3
7&8
6
2
TX+
TX-
RX+
RX-
TCM
RCM
NC
7
GHS/GND
8
RJ45
GND
14
CN1
RJ45-HR1105A
TX+
TX-
RX+
RX-
RN2
49R9
C10
104
C11
104
3V3A
R29
330R
R30
330R
R3
10K
R27 1K5
3V3
ETH_MDIO
ETH_MDC
C13
104
C12
104
3V3
RSTOUT
RN1
10K
L5
0R
3V3
R31
12.1K
3
1
4
2
Y3
25M
C26
22P
C25
22P
R32
1M
R17 22R
R18 22R
R19 22R
R20 22R
R21 220R
R22 220R
R23 220R
R24 220R
ETH_TXD0
ETH_TXD1
ETH_TX_EN
ETH_REF_CLK
ETH_RXD0
ETH_RXD1
ETH_CRS
ETH_RX_ER
C20
105
R2
10K
3V3
R33
0R
C19
105
P1.0
P1.1
P1.4
P1.15
P1.9
P1.10
P1.8
P1.14
P1.17
P1.16
RSTOUT
