Datasheet
Mobile Intel
®
Pentium
®
III Processor in BGA2 and Micro-PGA2 Packages at 1 GHz,
900 MHz, 850 MHz, 800 MHz, 750 MHz, 700 MHz, Low-voltage 750 MHz, Low-voltage
700 MHz, Low-voltage 600 MHz, Ultra Low-voltage 600 MHz and Ultra Low-voltage 500 MHz
283653-002 Datasheet 33
Table 14. Valid Mobile Pentium
III Processor Frequencies
T
J
= 0°C to 100°C; T
J
= 5°C to 100°C for Vcc = 1.15V; V
CC
= 0.975V ±25 mV or 1.10V ±80 mV or 1.15V
±80 mV or 1.35V ±100 mV or 1.60V ±115 mV or 1.70V -80/+125 mV ; V
CCT
= 1.50V ±115 mV
BCLK Frequency
(MHz)
Frequency Multiplier Core Frequency
(MHz)
Power-on Configuration
bits [27, 25:22]
100 3 300 0, 0001
100 4 400 0, 0010
100 4.5 450 0, 0110
100 5 500 0, 0000
100 5.5 550 0, 0100
100 6 600 0, 1011
100 6.5 650 0, 1111
100 7 700 0, 1001
100 7.5 750 0, 1101
100 8 800 0, 1010
100 8.5 850 1, 0110
100 9 900 1, 0000
100 10 1000 1, 1011
NOTE: While other combinations of bus and core frequencies are defined, operation at frequencies other
than those listed above will not be validated by Intel and are not guaranteed. The frequency multiplier
is programmed into the processor when it is manufactured and it cannot be changed.
Table 15. GTL+ Signal Groups AC Specifications
1
R
TT
= 56Ω internally terminated to V
CCT
; V
REF
=
2
/
3
V
CCT
; load = 0 pF;
T
J
= 0°C to 100°C; T
J
= 5°C to 100°C for Vcc = 1.15V; V
CC
= 0.975V ±25 mV or 1.10V ±80 mV or 1.15V ±80
mV or 1.35V ±100 mV or 1.60V ±115 mV or 1.70V -80/+125 mV ; V
CCT
= 1.50V ±115 mV
Symbol Parameter Min Max Unit Figure Notes
T7 GTL+ Output Valid Delay 0.2
0.2
2.7
3.4
ns
ns
Figure 8 Note 6
Note 7
T8 GTL+ Input Setup Time 1.2 ns Figure 9 Notes 2, 3
T9 GTL+ Input Hold Time 0.80
1.2
ns
ns
Figure 9 Note 4, 6
Note 7
T10 RESET# Pulse Width
1 ms Figure 10,
Figure 11
Note 5
NOTES:
1. All AC timings for GTL+ signals are referenced to the BCLK rising edge at 1.25V. All GTL+ signals are
referenced at V
REF
.
2. RESET# can be asserted (active) asynchronously, but must be de-asserted synchronously.
3. Specification is for a minimum 0.40V swing.
4. Specification is for a maximum 1.0V swing.
5. After V
CC
, V
CCT
, and BCLK become stable and PWRGOOD is asserted.
6. Applies to all core V
CC
other than 0.975V and 1.10V
7. Applies to core V
CC
= 0.975V and V
CC
= 1.10V