AMD SEMPRON 10 - Manual (Page 36)

24 333 FSB AMD Sempron™ Processor Model 10 with 256K L2 Cache Specifications Chapter 6
AMD Sempron™ Processor Model 10 with 256K L2 Cache Data Sheet 31994A —1 August 2004
6.4 333 FSB AMD Athlon™ System Bus DC Characteristics
Table 4 shows the DC characteristics of the AMD Athlon
system bus for this processor.
Table 4. 333 FSB 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
(0.5 x V
CC_CORE
)
+50
mV 1
I
VREF_LEAK_P
V
REF
Tristate Leakage Pullup V
IN
= V
REF
Nominal –100 µA
I
VREF_LEAK_N
V
REF
Tristate Leakage Pulldown V
IN
= V
REF
Nominal 100 µA
V
IH
Input High Voltage V
REF
+200 V
CC_CORE
+500 mV
V
IL
Input Low Voltage –500 V
REF
–200 mV
I
LEAK_P
Tristate Leakage Pullup
V
IN
= VSS
(Ground)
–1 mA
I
LEAK_N
Tristate Leakage Pulldown
V
IN
= V
CC_CORE
Nominal
1 mA
C
IN
Input Pin Capacitance 4 7 pF
R
ON
Output Resistance 0.90 x R
setN,P
1.1 x R
setN,P
Ω 2
R
setP
Impedance Set Point, P Channel 40 70 Ω 2
R
setN
Impedance Set Point, N Channel 40 70 Ω 2
Notes:
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.