Intel Pentium D 945 HH80553PG0964MN Manual De Usuario
Los códigos de productos
HH80553PG0964MN
Electrical Specifications
28
Datasheet
2.6.2
GTL+ Asynchronous Signals
Legacy input signals such as A20M#, IGNNE#, INIT#, PWRGOOD, SMI#, and STPCLK#
use CMOS input buffers. All of these signals follow the same DC requirements as GTL+
signals; however, the outputs are not actively driven high (during a logical 0-to-1
transition) by the processor. These signals do not have setup or hold time specifications
in relation to BCLK[1:0].
All of the GTL+ Asynchronous signals are required to be asserted/deasserted for at
least six BCLKs in order for the processor to recognize the proper signal state. See
for the DC specifications for the GTL+ Asynchronous signal groups. See
states.
2.6.3
Processor DC Specifications
The processor DC specifications in this section are defined at the processor core (pads)
unless otherwise stated. All specifications apply to all frequencies and cache sizes
unless otherwise stated.
Table 10.
GTL+ Signal Group DC Specifications
Symbol
Parameter
Min
Max
Unit
Notes
1
NOTES:
1. Unless otherwise noted, all specifications in this table apply to all processor frequencies.
V
IL
Input Low Voltage
0.0
GTLREF – (0.10 * V
TT
)
V
2, 3
2. V
IL
is defined as the voltage range at a receiving agent that will be interpreted as a logical low value.
3. The V
TT
referred to in these specifications is the instantaneous V
TT
.
V
IH
Input High Voltage
GTLREF + (0.10 * V
TT
)
V
TT
V
4, 5,
4. V
IH
is defined as the voltage range at a receiving agent that will be interpreted as a logical high value.
5. V
IH
and V
OH
may experience excursions above V
TT
. However, input signal drivers must comply with the signal quality
specifications.
V
OH
Output High Voltage
—
V
TT
V
I
OL
Output Low Current
N/A
V
TT_MAX
/
[(0.50*R
TT_MIN
)+(R
ON_MIN
)]
A
-
I
LI
Input Leakage
Current
Current
N/A
± 200
µA
6
6. Leakage to V
SS
with land held at V
TT
.
I
LO
Output Leakage
Current
Current
N/A
± 200
µA
7
7. Leakage to V
TT
with land held at 300 mV.
R
ON
Buffer On
Resistance
Resistance
6
12
W