Datasheet

Micrel, Inc. KS8721BL/SL
June 2009
6
M9999-062509-1.3
Pin Configuration
VDDIO INT#/PHYAD02524
GND LED0/TEST2623
13VDDC
TXER
TXC/REF_CLK
TXEN
TXD0
TXD1
TXD2
TXD3
COL/RMII
CRS/RMII_BTB
36 GND
GND
FXSD/FXEN
RX+
RX-
VDDRX
PD#
LED3/NWAYEN
LED2/DUPLEX
LED1/SPD100
35
34
33
32
31
30
29
28
27
14
15
16
17
18
19
20
21
22
GND REXT3712
RXER/ISO VDDRCV3811
1MDIO
MDC
R3D3/PHYAD1
RXD2/PHYAD2
RXD1/PHYAD3
RXD0/PHYAD4
VDDIO
GND
RXDV/PCS_LPBK
RXC
48 RST#
VDDPLL
XI
XO
GND
GND
VDDTX
TX+
TX-
GND
47
46
45
44
43
42
41
40
39
2
3
4
5
6
7
8
9
10
TXD0
TXEN
TXC/REF_CLK
TXER
VDDC
TXD1 TXD2 TXD3
MDIO
MDC
RXD1/PHYAD1
RXD2/PHYAD2
RXD1/PHYAD3
RXD0/PHYAD4
VDDIO
GND
RXDV/PCS_LPBK
RXC
RXER/ISO
GND
COL/RMII
CRS/RMII_BTB
GND
VDDIO
GND
GND
FXSD/FXEN
RX+
RX–
VDDRX
PD#
LED3/NWAYEN
LED2/DUPLEX
LED1/SPD100
LED0/TEST
INT#/PHYAD0
GND X0 X1 VDDPLL RST# GND VDDTX TX+ Tx– GND VDDRC
V
REXT
48-Pin SSOP (SM) 48-Pin LQFP (LQ)