lan8187 Standard Microsystems Corp., lan8187 Datasheet - Page 17

• Manufacturer Part Number: lan8187
• Description: Lan8187/lan8187i ?15kv Esd Protected Mii/rmii 10/100 Ethernet Transceiver With Hp Auto-mdix & Flexpwr Technology
• Manufacturer: Standard Microsystems Corp.

±15kV ESD Protected MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX & flexPWR
Datasheet
SMSC LAN8187/LAN8187i
SIGNAL NAME
SIGNAL NAME
SIGNAL NAME
VDD_CORE
AVDD[1-3]
AVSS[1-4]
VSS[1-8]
EXRES1
VDD33
VDDIO
RXN
RXP
NC
POWER
POWER
POWER
POWER
POWER
POWER
TYPE
TYPE
TYPE
Table 3.6 10/100 Line Interface
AI
AI
AI
Table 3.8 No Connect Signals
Table 3.7 Analog References
Table 3.9 Power Signals
DATASHEET
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. The
nominal voltage is 1.2V and therefore the resistor will dissipate
approximately 1mW of power.
No Connect
+3.3V Analog Power
Analog Ground
+1.8V (Core voltage) - 1.8V for digital circuitry on chip. Supplied
by the on-chip regulator unless the regulator is disabled by
grounding the REG_EN pin. Place a 0.1uF capacitor near this
pin and connect the capacitor from this pin to ground. When
using the on-chip regulator, place a 4.7uF ±20% capacitor with
ESR < 1ohm near this pin and connect the capacitor from this
pin to ground. X5R or X7R ceramic capacitors are
recommended since they exhibit an ESR lower than 0.1ohm at
frequencies greater than 10kHz.
+3.3V Digital Power
+1.6V to +3.6V Variable I/O Pad Power
Digital Ground (GND)
17
TM
Technology
DESCRIPTION
DESCRIPTION
DESCRIPTION
Revision 1.5 (01-10-08)