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參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 34/107頁(yè) |
| 文件大小： | 1474K |
| 代理商： | BX80557E2140 |
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Electrical Specifications
32
Datasheet
2.9
PECI DC Specifications
PECI is an Intel proprietary one-wire interface that provides a communication channel
between Intel processors (may also include chipset components in the future) and
external thermal monitoring devices. The processor contains Digital Thermal Sensors
(DTS) distributed throughout die. These sensors are implemented as analog-to-digital
converters calibrated at the factory for reasonable accuracy to provide a digital
representation of relative processor temperature. PECI provides an interface to relay
the highest DTS temperature within a die to external management devices for thermal/
fan speed control. More detailed information is available in the Platform Environment
Control Interface (PECI) Specification.
§ §
Table 19.
PECI DC Electrical Limits
Symbol
Definition and Conditions
Min
Max
Units
Notes1
NOTES:
1.
VTT supplies the PECI interface. PECI behavior does not affect VTT min/max specifications. Refer
Vin
Input Voltage Range
-0.15
VTT
V
Vhysteresis Hysteresis
0.1 * VTT
—V
2
2.
The input buffers use a Schmitt-triggered input design for improved noise immunity.
Vn
Negative-edge threshold voltage
0.275 * VTT
0.500 * VTT
V
Vp
Positive-edge threshold voltage
0.550 * VTT
0.762 * VTT
V
Isource
High level output source
(VOH = 0.75 * VTT)
-6.0
N/A
mA
Isink
Low level output sink
(VOL = 0.25 * VTT)
0.5
1.0
mA
Ileak+
High impedance state leakage to VTT
N/A
50
A
3
3.
The leakage specification applies to powered devices on the PECI bus.
Ileak-
High impedance leakage to GND
N/A
10
A
Cbus
Bus capacitance per node
N/A
10
pF
4
4. One node is counted for each client and one node for the system host. Extended trace lengths
might appear as additional nodes.
Vnoise
Signal noise immunity above 300 MHz
0.1 * VTT
—Vp-p
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