Micrel, Inc.
KSZ9031RNX
Pin Description (Continued)
Pin Number
Pin Name
Type(2)
46
XI
I
47
NC
–
48
PADDLE
ISET
P_GND
I/O
GND
Pin Function
Crystal / Oscillator/ External Clock input
25MHz ±50ppm tolerance
No connect
This pin is not bonded and can be connected to AVDDH power for footprint
compatibility with the Micrel KSZ9021RN Gigabit PHY.
Set the transmit output level
Connect a 12.1kΩ 1% resistor to ground on this pin.
Exposed paddle on bottom of chip
Connect P_GND to ground.
May 14, 2015
13
Revision 2.2