AMD ATHLON 8 - Manual (Page 45)

Chapter 8 Electrical Data 33
25175H—March 2003 AMD Athlon™ XP Processor Model 8 Data Sheet
Preliminary Information
8.3 Voltage Identification (VID[4:0])
Table 9 shows the VID[4:0] DC Characteristics. For more infor-
mation on VID[4:0] DC Characteristics, see “VID[4:0] Pins” on
page 78.
8.4 Frequency Identification (FID[3:0])
Table 10 shows the FID[3:0] DC characteristics. For more
information, see “FID[3:0] Pins” on page 75.
8.5 VCCA AC and DC Characteristics
Table 11 shows the AC and DC characteristics for VCCA. For
more information, see “VCCA Pin” on page 78.
Table 9. VID[4:0] DC Characteristics
Parameter Description Min Max
I
OL
Output Current Low 6 mA
V
OH
Output High Voltage – 5.25 V *
Note:
* The VID pins are either open circuit or pulled to ground. It is recommended that these pins
are not pulled above 5.25 V, which is 5.0 V + 5%.
Table 10. FID[3:0] DC Characteristics
Parameter Description Min Max
I
OL
Output Current Low 6 mA
V
OH
Output High Voltage – 2.625 V *
Note:
* The FID pins must not be pulled above this voltage by an external pullup resistor.
Table 11. VCCA AC and DC Characteristics
Symbol Parameter Min Nominal Max Units Notes
V
VCCA
VCCA Pin Voltage 2.25 2.5 2.75 V 1
I
VCCA
VCCA Pin Current 0 50 mA/GHz 2
Notes:
1. Minimum and Maximum voltages are absolute. No transients below minimum nor above maximum voltages are permitted.
2. Measured at 2.5 V.