82551QM Datasheet, PDF (97/120 Pages) Intel Corporation – Fast Ethernet Multifunction PCI/CardBus Controller

Networking Silicon — 82551QM
Table 64. PCI/CardBus Interface DC Specifications
C_CLKP
C_IDSEL
L_PINP
I_OFFPME
CLK Pin Capacitance
IDSEL Pin Capacitance
Pin Inductance
PME# Input Leakage
Current
V_O < V_IO
5
12
pF
4
8
pF
4
20
nH
4
1
mA
5
NOTES:
1. These values are only applicable in 3.3 V signaling environments. Outside of this limit the input buffer must
consume its minimum current.
2. Input leakage currents include high-Z output leakage for all bidirectional buffers with tristate outputs.
3. Signals without pull-up resistors have 3 mA low output current; and signals requiring pull-up resistors, 6 mA.
The signals requiring pull-up resistors include: FRAME#, TRDY#, IRDY#, DEVSEL#, STOP#, SERR# and
PERR#.
4. This value is characterized but not tested.
5. This input leakage current is the maximum allowable leakage into the PME# open drain driver when power is
removed from V_CC of the component. This assumes that no event has occurred to cause the device to
assertion of PME#.
Table 65. SMB Interface DC Specifications
Symbol
Parameter
Condition
V_IHS
V_ILS
I_ILS
V_OLS
I_PDNS
Input High Voltage
Input Low Voltage
Input Low Leakage
Current
0 < V_IN < V_CC
Output Low Voltage
I_PDNS = 100 µA
Current through pull-up
resistor
Min
Max Units Notes
2.1
V_IO + 0.5 V
1
-0.5
0.8
V
1
±5.0
µA
1
0.4
V
1
100
350
µA
1, 2
NOTES:
1. SMB outputs (SMB_ALERT#, SMBDATA, and SMBCLK) are open drain.
2. The input leakage current through the pull-up resistor is the maximum allowable leakage into the SMB open
drain driver when power is removed from V_CC of the component. It assumes that no event has occurred to
cause the device to assert SMB.
Table 66. Flash/Modem/EEPROM Interface DC Specifications
Symbol
Parameter
Condition
Min
V_IHL
Input High Voltage
2.0
V_ILL
Input Low Voltage
-0.5
I_ILL
Input Low Leakage
Current
0 < V_IN < V_CC
V_OHL
Output High Voltage I_out = -1 mA
2.4
V_OLL
Output Low Voltage
I_out = 2 mA
C_INL
Input Pin Capacitance
NOTE:
1. This value is characterized but not tested.
Max Units
V_CC + 0.5 V
0.8
V
±20
µA
V
0.4
V
10
pF
Notes
1
Datasheet
91