參數(shù)資料
型號: AXDA1800DUT3C
元件分類: 微處理器
英文描述: Microprocessor
中文描述: 微處理器
文件頁數(shù): 50/104頁
文件大?。?/td> 1769K
代理商: AXDA1800DUT3C
38
Electrical Data
Chapter 8
AMD Athlon XP Processor Model 8 Data Sheet
25175E—November 2002
Preliminary Information
8.10
AMD Athlon System Bus DC Characteristics
Table 15 shows the DC characteristics of the AMD Athlon
system bus used by the AMD Athlon XP processor model 8.
Table 15. AMD Athlon System Bus DC Characteristics
Symbol
Parameter
Condition
Min
Max
Units Notes
V
REF
DC Input Reference Voltage
(0.5 x V
CC_CORE
)
–50
–100
(0.5 x V
CC_CORE
)
+50
mV
1
I
VREF_LEAK_P
I
VREF_LEAK_N
V
REF
Tristate Leakage Pulldown
V
IH
Input High Voltage
V
IL
Input Low Voltage
V
REF
Tristate Leakage Pullup
V
IN
= V
REF
Nominal
V
IN
= V
REF
Nominal
μ
A
μ
A
100
V
REF
+ 200
–500
V
CC_CORE
+ 500
V
REF
– 200
mV
mV
I
LEAK_P
Tristate Leakage Pullup
V
IN
= VSS
(Ground)
V
IN
= V
CC_CORE
Nominal
–1
mA
I
LEAK_N
Tristate Leakage Pulldown
1
mA
C
IN
R
ON
R
setP
R
setN
Notes:
Input Pin Capacitance
4
7
pF
Output Resistance
0.90 x R
setN,P
40
1.1 x R
setN,P
70
2
Impedance Set Point, P Channel
2
Impedance Set Point, N Channel
40
70
2
1. V
REF
is nominally set to 50% of V
CC_CORE
with actual values that are specific to motherboard design implementation. V
REF
must be
created with a sufficiently accurate DC source and a sufficiently quiet AC response to adhere to the ± 50 mV specification listed
above.
2. Measured at V
CC_CORE
/ 2.
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