User Manual

26 Datasheet
Pentium
®
III Processor for the PGA370 Socket at 500 MHz to 1.13 GHz
2.9 Maximum Ratings
Table 6 contains processor stress ratings only. Functional operation at the absolute maximum and
minimum is not implied nor guaranteed. The processor should not receive a clock while subjected
to these conditions. Functional operating conditions are given in the AC and DC tables in
Section 2.10 through Section 2.12. Extended exposure to the maximum ratings may affect device
reliability. Furthermore, although the processor contains protective circuitry to resist damage from
static electric discharge, one should always take precautions to avoid high static voltages or electric
fields.
NOTES:
1. Input voltage can never exceed V
SS +2.18V.
2. Input voltage can never go below V
TT -2.18 V.
3. Parameter applies to CMOS (except BCLK, PICCLK, and PWRGOOD) and APIC bus signal groups only.
4. Parameter applies to CMOS signals BCLK, PICCLK, and PWRGOOD only.
Table 5. Frequency Select Truth Table for BSEL[1:0]
BSEL1 BSEL0 Frequency
0 0 66 MHz (unsupported)
0 1 100 MHz
10 Reserved
1 1 133 MHz
Table 6. Absolute Maximum Ratings
Symbol Parameter Min Max Unit Notes
T
STORAGE Processor storage temperature –40 85 °C
Vcc
CORE
and
V
TT
Processor core voltage and termination
supply voltage with respect to V
SS
–0.5 2.1 V
V
in
AGTL
AGTL+ buffer input voltage VTT -2.18 2.18 V 1,2
V
in
CMOS
1.5
CMOS buffer DC input voltage with respect
to V
SS
VTT - 2.18 2.18 V 1, 2, 3
V
in
CMOS
2.5
CMOS buffer DC input voltage with respect
to V
SS
-0.58 3.18 V 4
I
VID Max VID pin current -0.3 5 mA
I
CPUPRES# Max CPUPRES# pin current 5 mA