82540EP — Networking Silicon
20 Datasheet
2.5V 20 20 40 40 80 80 240 245 0.1 0.1
1.5V 10 10 30 35 55 60 400 425 1 1
Subsystem
3.3V current
70 mA 135 mA 200 mA 800 mA 10 mA
Table 7. Power Specifications - Complete Subsystem
Table 8. I/O Characteristics
Symbol Parameter Condition Min Typ Max Unit
V
IL
Voltage input LOW -0.5 0.8 V
V
IH
Voltage input HIGH 2
V
DD
+0.3
V
V
OL
Voltage output LOW 0.4 V
V
OH
Voltage output HIGH 2.4 V
V
SH
Schmitt Trigger Hysterysis 0.1 V
I
OL
a
Output current LOW
3mA drivers (TTL3)
6mA drivers (TTL6)
12mA drivers (TTL12)
V
OL
V
OL
V
OL
3
6
12
mA
mA
mA
I
OH
a
Output current HIGH
3mA drivers (TTL3)
6mA drivers (TTL6)
12mA drivers (TTL12)
V
OH
V
OH
V
OH
-3
-6
-12
mA
mA
mA
I
IN
Input Current
TTL inputs
Inputs with pull-down resistors
TTL inputs with pull-up resistors
V
IN
= V
DD
or
V
SS
V
IN
= V
DD
V
IN
= V
SS
-10
150
-150
±1
10 µA
480 µA
-480 µA
I
OZ
3-state output leakage current
V
OH
= V
DD
or
V
SS
-10 ±1 10 µA
C
IN
Input capacitance
Any input and
bi-directional
buffer
2.5 pF
C
OUT
Output capacitance
Any output
buffer
2pF
C
PUD
Pull-up/down Resistor value 7.5 20 kΩ
a. TTL3 signals include: EE_DI, EE_SK, EE_CS, and JTAG_TDO.
TTL6 signals include: CLKRUN#, FL_CE#, FL_SCK, FL_SI, and CLK_VIEW.
TTL12 signals include: LED0 / LINK #, LED1 / ACT #, LED2 / LINK100 #, LED3 / LINK1000 #, SDP0, SDP1, SDP6, and SDP7.
