Preliminary Information

26237C —May 2003

AMD Athlon™ XP Processor Model 10 Data Sheet

Table 16. General AC and DC Characteristics (continued)

Symbol

Parameter Description

Condition

 

Min

 

Max

Units

 

Notes

 

 

 

 

 

 

 

 

 

 

 

TBIT

 

Input Time to Acquire

 

 

20.0

 

 

ns

 

7, 8

TRPT

 

Input Time to Reacquire

 

 

40.0

 

 

ns

 

9–13

TRISE

 

Signal Rise Time

 

 

1.0

 

3.0

V/ns

 

6

TFALL

 

Signal Fall Time

 

 

1.0

 

3.0

V/ns

 

6

CPIN

 

Pin Capacitance

 

 

4

 

12

pF

 

 

TVALID

 

Time to data valid

 

 

 

 

100

ns

 

14

Notes:

 

 

 

 

 

 

 

 

 

 

1.

Characterized across DC supply voltage range.

 

 

 

 

 

 

 

 

2.

Values specified at nominal VCC_CORE . Scale parameters between VCC_CORE. minimum and VCC_CORE. maximum.

 

3.

IOL and IOH are measured at VOL maximum and VOH minimum, respectively.

 

 

 

 

4.

Synchronous inputs/outputs are specified with respect to RSTCLK and RSTCK# at the pins.

 

 

 

 

5.

These are aggregate numbers.

 

 

 

 

 

 

 

 

6.

Edge rates indicate the range over which inputs were characterized.

 

 

 

 

 

 

 

7.

In asynchronous operation, the signal must persist for this time to enable capture.

 

 

 

 

8.

This value assumes RSTCLK period is 10 ns ==> TBIT = 2*fRST.

 

 

 

 

 

 

 

9.

The approximate value for standard case in normal mode operation.

 

 

 

 

10.

This value is dependent on RSTCLK frequency, divisors, Low Power mode, and core frequency.

 

 

 

 

11.

Reassertions of the signal within this time are not guaranteed to be seen by the core.

 

 

 

 

12.

This value assumes that the skew between RSTCLK and K7CLKOUT is much less than one phase.

 

 

 

 

13.

This value assumes RSTCLK and K7CLKOUT are running at the same frequency, though the processor is capable of other

 

 

configurations.

 

 

 

 

 

 

 

 

14.

Time to valid is for any open-drain pins. See requirements 7 and 8

in the “Power-Up Timing Requirements“ chapter for more

 

information.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chapter 8

Electrical Data

37

Page 49
Image 49
AMD 10, 27493, 27488 Input Time to Acquire, Input Time to Reacquire, Signal Rise Time, Signal Fall Time, Pin Capacitance