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參數(shù)資料
| 型號： | BX80557E2140 |
| 廠商： | INTEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | MICROPROCESSOR, PBGA775 |
| 封裝： | LGA-775 |
| 文件頁數(shù)： | 27/107頁 |
| 文件大?。?/td> | 1474K |
| 代理商： | BX80557E2140 |
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Electrical Specifications
26
Datasheet
.
2.7.3.1
GTL+ Front Side Bus Specifications
In most cases, termination resistors are not required as these are integrated into the
processor silicon. See Table 9 for details on which GTL+ signals do not include on-die
termination.
Valid high and low levels are determined by the input buffers by comparing with a
reference voltage called GTLREF. Table 14 lists the GTLREF specifications. The GTL+
reference voltage (GTLREF) should be generated on the system board using high
precision voltage divider circuits.
Table 13.
CMOS Signal Group DC Specifications
Symbol
Parameter
Min
Max
Unit
Notes1
NOTES:
1. Unless otherwise noted, all specifications in this table apply to all processor frequencies.
VIL
Input Low Voltage
-0.10
VTT * 0.30
V
2, 3
2.
VIL is defined as the voltage range at a receiving agent that will be interpreted as a logical low
value.
3.
The VTT referred to in these specifications refers to instantaneous VTT.
VIH
Input High Voltage
VTT * 0.70
VTT + 0.10
V
4, 5, 3
4.
VIH is defined as the voltage range at a receiving agent that will be interpreted as a logical high
value.
5.
VIH and VOH may experience excursions above VTT. However, input signal drivers must comply
with the signal quality specifications.
VOL
Output Low Voltage
-0.10
VTT * 0.10
V
VOH
Output High Voltage
0.90 * VTT
VTT + 0.10
V
6.
All outputs are open drain.
IOL
Output Low Current
1.70
4.70
mA
3, 7
7.
IOL is measured at 0.10 * VTT. IOH is measured at 0.90 * VTT.
IOH
Output High Current
1.70
4.70
mA
ILI
Input Leakage Current
N/A
± 100
A
8
8.
Leakage to VSS with land held at VTT.
ILO
Output Leakage Current
N/A
± 100
A
9
9.
Leakage to VTT with land held at 300 mV.
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