Intel III 450 MHz 80525PY450512 Data Sheet

25

1. Operating voltage is the voltage to which the component is designed to operate. See 

.

2. Input voltage can never be above V

SS

 + 2.3 V.

3. Input voltage can never be below V

TT

 – 2.3 V.

4. Parameter applies to the 2.5 V processor core signals (BCLK, PICCLK, and PWRGOOD).
5. Parameter applies to the 1.5 V processor core signals (all signals except BCLK, PICCLK, and PWRGOOD).
6. The electrical and mechanical integrity of the processor edge fingers are specified to last for 50 insertion/

extraction cycles.

7. While insertion/extraction cycling above 50 insertions will cause an increase in the contact resistance (above 

0.1

Ω

) and a degradation in the material integrity of the edge finger gold plating, it is possible to have 

processor functionality above the specified limit. The actual number of insertions before processor failure will 
vary based upon system configuration and environmental conditions.

The processor DC specifications in this section are defined at the Pentium III processor core pins, 
edge fingers, and at the SC242 connector pins. See 

 for the processor edge finger signal 

definitions and 

 for the core pin locations and the signal listing.

Most of the signals on the Pentium III processor system bus are in the AGTL+ signal group. These 
signals are specified to be terminated to 1.5 V. The DC specifications for these signals are listed in 

To allow connection with other devices, the Clock, CMOS, APIC, and TAP signals are designed to 
interface at non-AGTL+ levels. The DC specifications for these pins are listed in 

 through 

 list the DC specifications for Pentium III processors. Specifications are 

valid only while meeting specifications for case temperature, clock frequency, and input voltages. 
Care should be taken to read all notes associated with each parameter.

T

STORAGE

Processor storage temperature

–40

85

°C

V

CCCORE

 and

 

V

TT

Processor core voltage and Termination 
supply voltage with respect to V

SS

-0.5

2.1

V

V

CCL2

/V

CC3.3

V

CC3.3

 with respect to V

SS

–0.5

5.0

V

1

Vin

1.5

1.5 V buffer input voltage

V

TT 

– 2.3

V

SS

 + 2.3

V

2, 3, 5

Vin

2.5

2.5 V buffer input voltage

–0.7

3.3

V

4

I

VID

Max VID pin current

5

mA

I

SLOTOCC

Max SLOTOCC# pin current

5

mA

Mech Max 
Edge Fingers

Mechanical integrity of processor edge 
fingers

50

Insertions/

Extractions

6, 7