Ground And No Connects; Control Signals - Intel 82540EP Datasheet

82540EP — Networking Silicon
3.7.3

Ground and No Connects

Symbol
GND
NC
3.7.4

Control Signals

Symbol
CTRL_15
CTRL_25
16
Type
P
Ground.
No Connect. Do not connect any circuitry to these pins. Pull-up or pull-down resistors
P
should not be connected to these pins.
Type
1.5V Control. LDO voltage regulator output to drive external pass transistor. If 1.5V is
already present in the system, leave output unconnected. To achieve optimal D
A
consumption (<50 mw), leave the output unconnected and use a high-efficiency
external switching regulator.
2.5V Control. LDO voltage regulator output to drive external pass transistor. If 2.5V is
already present in the system, leave output unconnected. To achieve optimal D
A
consumption (<50 mw), leave the output unconnected and use a high-efficiency
external switching regulator.
Name and Function
Name and Function
power
3
power
3
Datasheet