Electrical Specifications
2.7
Clock Specifications
2.7.1
Front Side Bus Clock (BCLK[1:0]) and Processor Clocking
BCLK[1:0] directly controls the FSB interface speed as well as the core frequency of the
processor. As in previous generation processors, the Celeron D processor core
frequency is a multiple of the BCLK[1:0] frequency. The processor bus ratio multiplier
will be set at its default ratio during manufacturing. Refer to Table 17 for the Celeron D
processor supported ratios.
The Celeron D processor uses a differential clocking implementation. For more
information on the Celeron D processor clocking, contact your Intel field
representative.
Table 17.
Core Frequency to FSB Multiplier Configuration
Multiplication of System
Core Frequency to FSB
Frequency
Core Frequency
(133 MHz BCLK/
533 MHz FSB)
Notes1, 2
1/12
1/13
1.6 GHz
1.8 GHz
1.9 GHz
2 GHz
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1/14
1/15
1/16
2.1 GHz
2.3 GHz
2.4 GHz
2.5 GHz
2.7 GHz
2.8 GHz
2.9 GHz
3 GHz
1/17
1/18
1/19
1/20
1/21
1/22
1/23
1/24
3.2 GHz
3.3 GHz
1/25
NOTES:
1. Individual processors operate only at or below the rated frequency.
2. Listed frequencies are not necessarily committed production frequencies.
Datasheet
29
INTEL [ INTEL ]
