Pentium® III Processor for the PGA370 Socket at 500 MHz to 866 MHz
2.11
Processor DC Specifications
The processor DC specifications in this section are defined at the PGA370 socket pins (bottom side
of the motherboard). See Section 7.0 for the processor signal descriptions and Section 5.3 for the
signal listings.
Most of the signals on the processor system bus are in the AGTL+ signal group. These signals are
specified to be terminated to 1.5V. The DC specifications for these signals are listed in Table 7 on
page 25.
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 Table 8 on
page 25.
Table 6 through Table 9 list the DC specifications for the Pentium III processor for the PGA370
socket. Specifications are valid only while meeting specifications for junction temperature, clock
frequency, and input voltages. Care should be taken to read all notes associated with each
parameter.
Table 6. Voltage and Current Specifications 1, 2 (Sheet 1 of 2)
Symbol
Parameter
Core Freq
Min
Typ
Max
Unit
Notes
500E MHz
533EB MHz
550E MHz
600E MHz
600EB MHz
650 MHz
667B MHz
700 MHz
733B MHz
750 MHz
1.60
1.65
1.60
1.65
1.65
1.65
1.65
1.65
1.65
1.65
1.65
1.65
1.65
1.65
V
V
V
V
V
V
V
V
V
V
V
V
V
V
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
3, 4
VCC
CORE
VCC for processor core
800 MHz
800EB MHz
850 MHz
866 MHz
Static AGTL+ bus
termination voltage
, 5, 16
, 5
VTT, VCC
VTT, VCC
1.455
1.365
-2%
1.50
1.50
1.545
1.635
+2%
V
V
V
V
1.5 ±3%
1.5 ±9%
±2%, 7
1.5
1.5
Transient AGTL+ bus
termination voltage
AGTL+ input reference
voltage
2/3
VTT
V
REF
CLKREF input
reference voltage
VCLKREF
1.169
1.25
1.331
±6.5%, 15
6
Baseboard Processor core voltage
VCC
static tolerance level at
the PGA370 socket
pins
CORE
–0.080
–0.130
0.040
0.080
V
V
Tolerance,
Static
Baseboard Processor core voltage
VCC
transienttolerance level
at the PGA370 socket
pins
CORE
6
Tolerance,
Transient
Datasheet
23
INTEL [ INTEL ]
