Intel 82540EP User Manual
Page 26
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
µ
A
480
µ
A
-480
µ
A
I
OZ
3-state output leakage current
V
OH
= V
DD
or
V
SS
-10
±
1
10
µ
A
C
IN
Input capacitance
Any input and
bi-directional
buffer
2.5
pF
C
OUT
Output capacitance
Any output
buffer
2
pF
C
PUD
Pull-up/down Resistor value
7.5
20
k
Ω
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.