LAN8700 Datasheet, PDF (13/74 Pages) SMSC Corporation – ±15kV ESD Protected MII/RMII Fast-Ethernet PHY with HP Auto-MDIX and SMSC flexPWR TM in a Small Footprint

LAN8700/LAN8700i
TABLE 3-8: POWER SIGNALS
Signal Name
Type
VDDIO
POWER
VDD33
VDDA3.3
VDD_CORE
POWER
POWER
POWER
VSS
POWER
Description
+1.6V to +3.6V Variable I/O Pad Power
+3.3V Core Regulator Input.
+3.3V Analog Power
+1.8V (Core voltage) - 1.8V for digital circuitry on chip. Supplied
by the on-chip regulator unless configured for regulator off mode
using the RX_CLK/REGOFF 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.
Exposed Ground Flag. The flag must be connected to the ground
plane with an array of vias as described in the Analog Layout
Guidelines
 2007-2016 Microchip Technology Inc.
DS00002260A-page 13