AMD 8 manual Voltage Identification VID40, Frequency Identification FID30, Preliminary Information

Preliminary Information

25175H —March 2003 AMD Athlon™ XP Processor Model 8 Data Sheet

8.3Voltage 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.

Table 9.	VID[4:0] DC Characteristics
Parameter		Description	Min	Max
IOL		Output Current Low	6 mA
VOH		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%.

8.4Frequency Identification (FID[3:0])

Table 10 shows the FID[3:0] DC characteristics. For more information, see “FID[3:0] Pins” on page 75.

Table 10. FID[3:0] DC Characteristics

Parameter	Description	Min	Max
IOL	Output Current Low	6 mA
VOH	Output High Voltage	–	2.625 V *

Note:

* The FID pins must not be pulled above this voltage by an external pullup resistor.

8.5VCCA AC and DC Characteristics

Table 11 shows the AC and DC characteristics for VCCA. For more information, see “VCCA Pin” on page 78.

Table 11. VCCA AC and DC Characteristics

Symbol	Parameter	Min	Nominal	Max	Units	Notes
VVCCA	VCCA Pin Voltage	2.25	2.5	2.75	V	1
IVCCA	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.

Chapter 8 Electrical Data 33