Datasheet

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Electrical Characteristics

284 Datasheet

NOTES:

1. CB_7:0, DQS[8], and DQSB[8] ECC signals are only for DDR2

Clocks

HCSL

HPL_CLKINP, HPL_CLKINN, EXP_CLKINP, EXP_CLKINN,

DPL_REFCLKINN, DPL_REFCLKINP

Reset, and Miscellaneous Signal Groups

CMOS Input EXP_SLR, PWROK, RSTINB

CMOS Output ICH_SYNCB

I/O Buffer Supply Voltages

System Bus Input

Supply Voltage

VTT_FSB

1.25 V PCI Express*

Supply Voltages

VCC_EXP

3.3 V PCI Express*

Analog Supply

Voltage

VCCA_EXP

1.8 V DDR2 Supply

Voltage

VCC_DDR

1.8 V DDR2 Clock

Supply Voltage

VCC_CKDDR

1.25 V MCH Core

Supply Voltage

VCC

1.25 V Controller

Supply Voltage

VCC_CL

3.3 V CMOS Supply

Voltage

VCC3_3

PLL Analog Supply

Voltages

VCCA_HPLL, VCCAPLL_EXP, VCCA_MPLL

Table 25. Signal Groups

Signal Type Signals Notes