LXT974/LXT975 — Fast Ethernet 10/100 Quad Transceivers
Figure 3. LXT975 Pin Assignments
120 .......N/C
119 .......N/C
LED3_0 ..... 1
LED3_1 ..... 2
LED3_2 ..... 3
LED2_0 ..... 4
LED2_1 ..... 5
LED2_2 ..... 6
GND ..... 7
LED1_0 ..... 8
LED1_1 ..... 9
LED1_2 ..... 10
LED0_0 ..... 11
LED0_1 ..... 12
LED0_2 ..... 13
GND ..... 14
LEDCLK ..... 15
LEDDAT ..... 16
LEDENA ..... 17
ADD2 ..... 18
ADD3 ..... 19
ADD4 ..... 20
118 .......CLK25M
117 .......FDE_FX
116 .......CFG_0
115 .......CFG_1
114 .......CFG_2
113 .......BYPSCR
112 .......TEST
111 .......AUTOENA
110 .......FDE
109 .......RESET
108 .......GNDH
107 .......VCCH
106 .......TRSTE0
105 .......TRSTE1
104 .......TRSTE2
103 .......TRSTE3
102 .......PWRDN
101 .......TEST
(Date Code) XXXX XXXX
100 .......MDDIS
99 .........MDC
98 .........MDINT
97 .........MDIO
96 .........VCC
95 .........GND
(Part#)
GNDA ..... 21
VCC ..... 22
RXD0_3 ..... 23
RXD0_2 ..... 24
LXT974AHC or
LXT974BHC
RXD0_1 ..... 25
RXD0_0 ..... 26
94 .........CRS3
93 .........COL3
RX_DV0 ..... 27
(Lot#)
XXXXXX
RX_CLK0 ..... 28
RX_ER0 ..... 29
TX_ER0 ..... 30
TX_CLK0 ..... 31
TX_EN0 ..... 32
TXD0_0 ..... 33
TXD0_1 ..... 34
TXD0_2 ..... 35
TXD0_3 ..... 36
COL0 ..... 37
92 .........TXD3_3
91 .........TXD3_2
90 .........TXD3_1
89 .........TXD3_0
88 .........TX_EN3
87 .........TX_CLK3
86 .........TX_ER3
85 .........RX_ER3
84 .........RX_CLK3
83 .........RX_DV3
82 .........RXD3_0
81 .........RXD3_1
CRS0 ..... 38
GND ..... 39
VCCMII ..... 40
12
Datasheet
INTEL [ INTEL ]
