
82371FB (PIIX)
— Timing Specification
2
Datasheet Addendum
1.3
DC Characteristics
Table 2. 82371FB DC Characteristics
Functional Operating Range (V
CC
=
5 V ±5%, T
CASE
= 0° C to +85° C)
Sym
Parameter
Min
Max
Unit
Notes
V
IL1
Input Low Voltage
– 0.3
0.8
V
V
IH1
Input High Voltage
2.0
V
CC
+ 0.3
V
V
T1-
Schmitt Trigger Threshold
Voltage, Falling Edge
0.7
1.35
V
V
CC
=5 V
V
T1+
Schmitt Trigger Threshold
Voltage, Rising Edge
1.4
2.2
V
1, V
CC
=5 V
V
H1
Hysteresis Voltage
0.3
1.2
V
1, V
CC
=5 V
V
OL1
Output Low Voltage
0.5
V
2,3,4,5
V
OH1
Output High Voltage
V
CC
– 0.7
V
2,3,4,5
I
OL1
Output Low Current
2
mA
2
I
OH1
Output High Current
– 1
mA
2
I
OL2
Output Low Current
12
mA
3
I
OH2
Output High Current
– 3
mA
3
I
OL3
Output Low Current
3
mA
4
I
OH3
Output High Current
– 2
mA
4
I
OL4
Output Low Current
6
mA
5
I
OH4
Output High Current
– 2
mA
5
I
LI1
Input Leakage Current
± 1
μ
A
All, except I
LI2
and I
LI3
I
LI2
Input Leakage Current
± 300
μ
A
6, T
C
I
LI3
Input Leakage Current
± 250
μ
A
6, EXTSMI#, TESTIN#
C
IN
Input Capacitance
12
pF
F
C
= 1 MHz
C
OUT
Output Capacitance
12
pF
F
C
= 1 MHz
C
I/O
I/O Capacitance
12
pF
F
C
= 1 MHz
I
CC
V
CC
Supply Current
250
mA
V
CC
= 5 V
NOTES:
1.
2. I
OL1
, I
apply to the following signals (V
, pertains to the I
, condition and V
pertains to the
I
condition): DD[15:0], PHOLD#, DIOW#, DIOR#,DDAK[1:0]#, SPKR, IGNNE#, INTR, SMI#,
STPCLK#, CPURST#,INIT, NMI,TC, DREQ[7:5,3:0], DACK[7:5,3:0]#, REFRESH#, DDRQ[1:0], SDIR,
SOE#, BIOSCS#, RTCCS#, KBCS#, XOE#, XDIR, MDRQ[1:0], MDAK[1:0], MIRQ[1:0], RTCALE,
PIRQ[A:D].
3. I
OL2
, I
apply to the following signals (V
, pertains to the I
, condition and V
pertains to the
I
condition): SYSCLK, SD[15:0], IOCHRDY, SMEMR#, AEN, SMEMW#, IOR#, IOW#, RSTDRV,
SA[7:0], BALE, MEMCS16#, LA[23:17], MEMR#, MEMW#,
4. I
OL3
, I
apply to the following signals (V
, pertains to the I
OL2
, condition and V
OH1
pertains to the
I
OH2
condition): AD[31:0], C/BE[3:0]#, PCIRST#
5. I
OL4
, I
apply to the following signals (V
, pertains to the I
, condition and V
OH1
pertains to the
I
condition): FRAME#, TRDY#, IRDY#, STOP#, DEVSEL#, PAR.
6. These signals have weak internal pull-up resistors.
V
T1-
, V
T1+
and VH1 apply to the following signals: IRQx, IOCHK#, ZEROWS#, PWROK.