lxt9781 Intel Corporation, lxt9781 Datasheet - Page 10

• Manufacturer Part Number: lxt9781
• Description: Fast Ethernet 10/100 Multi-port Transceiver With Rmii
• Manufacturer: Intel Corporation

LXT9761/9781 — Fast Ethernet 10/100 Multi-Port Transceiver with RMII
1.0
10
Package Topside Markings
Part #
Rev #
Lot #
FPO #
1. Ports 6 and 7 are available only on the LXT9781. These ports are not bonded out on the LXT9761.
Figure 2. LXT9781 PQFP Pin Assignments
CRS_DV7 .......4
CRS_DV6 .......11
CRS_DV5 .......20
CRS_DV4 .......27
CRS_DV3 .......36
CRS_DV2 .......43
RXD7_1 .......2
RXD7_0 .......3
RXD6_1 .......9
RXD6_0 .......10
RXD5_1 .......18
RXD5_0 .......19
RXD4_1 .......25
RXD4_0 .......26
RXD3_1 .......34
RXD3_0 .......35
RXD2_1 .......41
RXD2_0 .......42
TXD7_0 .......7
TXD7_1 .......8
TXD6_0 .......14
TXD6_1 .......17
TXD5_0 .......23
TXD5_1 .......24
TXD4_0 .......30
TXD4_1 .......33
TXD3_0 .......39
TXD3_1 .......40
TXD2_0 .......46
TXD2_1 .......47
RXER7 .......5
RXER6 .......12
RXER5
RXER4 .......28
RXER3 .......37
RXER2 .......44
TXEN7 .......6
TXEN6 .......13
VCCIO .......15
TXEN5 .......22
TXEN4 .......29
VCCIO .......31
TXEN3 .......38
TXEN2 .......45
VCCIO .......52
GNDD .......1
GNDD .......16
GNDD .......32
GNDD .......48
GNDD .......49
GNDD .......50
GNDD .......51
Marking
......21
Pin Assignments and Signal Descriptions
LXT9781 is the unique identifier for this product family.
Identifies the particular silicon “stepping” (Refer to Specification Update for additional stepping
information.)
Identifies the batch.
Identifies the Finish Process Order.
FPO #
LOT #
Part #
LXT9781 XX
XXXXXX
XXXXXXXX
Definition
Rev #
156 ..........TPFIN7
155 ..........VCCR
154 ..........TPFOP7
153 ..........TPFON7
152 ..........GNDA
151 ..........TPFON6
150 ..........TPFOP6
149 ..........VCCT
148 ..........VCCR
147 ..........TPFIN6
146 ..........TPFIP6
145 ..........GNDA
144 ..........GNDA
143 ..........TPFIP5
142 ..........TPFIN5
141 ..........VCCR
140 ..........TPFOP5
139 ..........TPFON5
138 ..........GNDA
137 ..........TPFON4
136 ..........TPFOP4
135 ..........VCCT
134 ..........VCCR
133 ..........TPFIN4
132 ..........TPFIP4
131 ..........GNDA
130 ..........GNDA
129 ..........TPFIP3
128 ..........TPFIN3
127 ..........VCCR
126 ..........VCCT
125 ..........TPFOP3
124 ..........TPFON3
123 ..........GNDA
122 ..........TPFON2
121 ..........TPFOP2
120 ..........VCCR
119 ..........TPFIN2
118 ..........TPFIP2
117 ..........GNDA
116 ..........GNDA
115 ..........TPFIP1
114 ..........TPFIN1
113 ..........VCCR
112 ..........VCCT
111 ..........TPFOP1
110 ..........TPFON1
109 ..........GNDA
108 ..........TPFON0
107 ..........TPFOP0
106 ..........VCCR
105 ..........TPFIN0
Datasheet