LAN8187I-JT SMSC, LAN8187I-JT Datasheet - Page 16

• Manufacturer Part Number: LAN8187I-JT
• Description: TXRX ETHERNET 10/100 ESD PROT
• Manufacturer: SMSC
• Type: Transceiverr

Specifications of LAN8187I-JT

• Protocol: Ethernet
• Voltage - Supply: 1.6 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Drivers/receivers: -
• Other names: Q4223799

Revision 0.6 (02-24-06)
SIGNAL NAME
SIGNAL NAME
SIGNAL NAME
CLKIN/XTAL1
GPO0/MII
EXRES1
XTAL2
GPO2
GPO1
RXN
TXN
RXP
TXP
Table 3.5 General Signals (continued)
Table 3.6 10/100 Line Interface
TYPE
TYPE
TYPE
Table 3.7 Analog References
AO
AO
I/O
AI
AI
AI
O
O
O
I
DATASHEET
Clock Input – 25 Mhz or 50 MHz external clock or crystal input.
In MII mode, this signal is the 25 MHz reference input clock
In RMII mode, this signal is the 50 MHz reference input clock
which is typically also driven to the RMII compliant Ethernet MAC
clock input.
Note:
Clock Output – 25 MHz crystal output.
Note:
General Purpose Output 2 – General Purpose Output signal
Driven by bits in registers 27 and 31.
General Purpose Output 1 – General Purpose Output signal
Driven by bits in registers 27 and 31. This signal is mux’d with
PHYAD4.
General Purpose Output 0 – General Purpose Output signal.
Driven by bits in registers 27 and 31.
MII – MII/RMII mode selection is latched on the rising edge of
the internal reset (nreset) based on the following strapping:
Float the GPO0 pin for MII mode or pull-high with an external
(see
page
Note:
Transmit Data: 100Base-TX or 10Base-T differential transmit
outputs to magnetics.
Transmit Data: 100Base-TX or 10Base-T differential transmit
outputs to magnetics.
Receive Data: 100Base-TX or 10Base-T differential receive
inputs from magnetics.
Receive Data: 100Base-TX or 10Base-T differential receive
inputs from magnetics.
Connects to reference resistor of value 12.4K-Ohm, 1%
connected as described in the Analog Layout Guidelines.
High-Performance MII and RMII 10/100 Ethernet PHY with HP Auto-MDIX
Table 4.3, “Boot Strapping Configuration Resistors,” on
32) resistor to VDDIO to set the device in RMII mode.
16
See
page 30
See
page 30
Also, float this pin if using an external clock being
driven through CLKIN/XTAL1
See
page 26
Section 4.10, "(TX_ER/TXD4)/nINT Strapping," on
Section 4.10, "(TX_ER/TXD4)/nINT Strapping," on
Section 4.6.3, "MII vs. RMII Configuration," on
for additional details on Strapping options.
for additional details on Strapping options.
for more details.
DESCRIPTION
DESCRIPTION
DESCRIPTION
SMSC LAN8187/LAN8187I
Datasheet