Intel® 945G/945GZ/945GC/ 945P/945PL Express Chipset Family ...
Intel® 945G/945GZ/945GC/ 945P/945PL Express Chipset Family ... Intel® 945G/945GZ/945GC/ 945P/945PL Express Chipset Family ...
Electrical Characteristics Table 11-1. Absolute Minimum and Maximum Ratings 262 Symbol Parameter Min Max Unit Notes Tstorage Storage Temperature -55 150 �C 1 (G)MCH Core VCC 1.5 V Core Supply Voltage with respect to VSS -0.3 1.65 V Host Interface (533 MHz/800 MHz/1066 MHz) (1066 MHz on 82945G/82945P (G)MCH Only) VTT System Bus Input Voltage with respect to VSS -0.3 1.65 V VCCA_HPLL 1.5 V Host PLL Analog Supply Voltage with respect to VSS -0.3 1.65 V DDR2 Interface (533 MHz/667 MHz) (667 MHz on 82945G/82945GC/82945P (G)MCH Only) VCCSM 1.8 V DDR2 System Memory Supply Voltage with respect to VSS VCCA_SMPLL 1.5 V System Memory PLL Analog Supply Voltage with respect to VSS PCI Express*/SDVO/DMI Interface VCC_EXP 1.5 V PCI Express* and DMI Supply Voltage with respect to VSS VCCA_EXPPLL 1.5 V PCI Express PLL Analog Supply Voltage with respect to VSS RGB/CRT DAC Display Interface (8 bit) (82945G/82945GC/82945GZ GMCH Only) VCCA_DAC 2.5 V Display DAC Analog Supply Voltage with respect to VSS VCCA_DPLLA 1.5 V Display PLL A Analog Supply Voltage with respect to VSS VCCA_DPLLB 1.5 V Display PLL B Analog Supply Voltage with respect to VSS CMOS Interface -0.3 4.0 V -0.3 1.65 V -0.3 1.65 V -0.3 1.65 V -0.3 2.65 V -0.3 1.65 V -0.3 1.65 V VCC2 2.5 V CMOS Supply Voltage with respect to VSS -0.3 2.65 V NOTES: 1. Possible damage to the (G)MCH may occur if the (G)MCH temperature exceeds 150 °C. Intel does not warrant functionality for parts that have exceeded temperatures above 150 °C since this exceeds Intel’s specification.
11.1.1 Power Characteristics Table 11-2. Non Memory Power Characteristics Electrical Characteristics Symbol Parameter Signal Names Min Max Unit Notes IVTT System Bus Supply Current VTT — 0.9 A 1, 4,5 IVCC 1.5 V Core Supply Current (Integrated) VCC — 13.8 A 2,3,4,5 IVCC 1.5 V Core Supply Current (Discrete) VCC — 8.9 A 2,3,4,5 IVCC_EXP 1.5 V PCI Express and DMI Supply Current VCC_EXP — 1.5 A 5 IVCCA_DAC 2.5 V Display DAC Analog Supply Current VCCA_DAC — 70 mA 5 IVCC2 2.5 V CMOS Supply Current VCC2 — 2.0 mA 5 IVCCA_EXPPLL 1.5 V PCI Express and DMI PLL Analog Supply Current VCCA_EXPPLL — 45 mA 5 IVCCA_HPLL 1.5 V Host PLL Supply Current VCCA_HPLL — 45 mA 5 IVCCA_DPLLA IVCCA_DPLLB 1.5 V Display PLL A and PLL B Supply Current (82945G/82945GC/82945GZ GMCH Only) VCCA_DPLLA VCCA_DPLLB — 55 mA 5 NOTES: 1. Estimate is only for maximum current coming through (G)MCH supply balls. 2. Rail includes DLLs and FSB sense amps. 3. Includes worst case leakage. 4. Calculated for highest frequencies. 5. Icc_max values are determined on a per-interface basis. Maximum currents cannot occur simultaneously on all interfaces. Table 11-3. DDR2 Power Characteristics Symbol Parameter Min Max Uni t IVCCSM DDR2 System Memory Interface (1.8 V) Supply Current — 4.0 A 1,2,3 ISUS_VCCSM DDR2 System Memory Interface (1.8 V) Standby Supply Current — 25 mA 1 ISMVREF ISUS_SMVREF ITTRC ISUS_TTRC DDR2 System Memory Interface Reference Voltage (0.90 V) Supply Current DDR2 System Memory Interface Reference Voltage (0.90 V) Standby Supply Current DDR2 System Memory Interface Resister Compensation Voltage (1.8 V) Supply Current DDR2 System Memory Interface Resister Compensation Voltage (1.8 V) Standby Supply Current — 2 mA 1 — 10 µA 1 — 36 mA 1 — 10 µA 1 IVCCA_SMPLL System Memory PLL Analog (1.5 V) Supply Current — 66 mA 1 Notes NOTES: 1. Estimate is only for max current coming through (G)MCH supply balls 2. Calculated for highest frequencies 3. Icc_max values are determined on a per-interface basis. Maximum currents cannot occur simultaneously on all interfaces. 263
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11.1.1 Power Characteristics<br />
Table 11-2. Non Memory Power Characteristics<br />
Electrical Characteristics<br />
Symbol Parameter Signal Names Min Max Unit Notes<br />
IVTT System Bus Supply Current VTT — 0.9 A 1, 4,5<br />
IVCC 1.5 V Core Supply Current (Integrated) VCC — 13.8 A 2,3,4,5<br />
IVCC 1.5 V Core Supply Current (Discrete) VCC — 8.9 A 2,3,4,5<br />
IVCC_EXP 1.5 V PCI <strong>Express</strong> and DMI Supply Current VCC_EXP — 1.5 A 5<br />
IVCCA_DAC 2.5 V Display DAC Analog Supply Current VCCA_DAC — 70 mA 5<br />
IVCC2 2.5 V CMOS Supply Current VCC2 — 2.0 mA 5<br />
IVCCA_EXPPLL<br />
1.5 V PCI <strong>Express</strong> and DMI PLL Analog<br />
Supply Current<br />
VCCA_EXPPLL — 45 mA 5<br />
IVCCA_HPLL 1.5 V Host PLL Supply Current VCCA_HPLL — 45 mA 5<br />
IVCCA_DPLLA<br />
IVCCA_DPLLB<br />
1.5 V Display PLL A and PLL B Supply<br />
Current (82<strong>945G</strong>/82<strong>945G</strong>C/82<strong>945G</strong>Z<br />
GMCH Only)<br />
VCCA_DPLLA<br />
VCCA_DPLLB<br />
— 55 mA 5<br />
NOTES:<br />
1. Estimate is only for maximum current coming through (G)MCH supply balls.<br />
2. Rail includes DLLs and FSB sense amps.<br />
3. Includes worst case leakage.<br />
4. Calculated for highest frequencies.<br />
5. Icc_max values are determined on a per-interface basis. Maximum currents cannot occur simultaneously on<br />
all interfaces.<br />
Table 11-3. DDR2 Power Characteristics<br />
Symbol Parameter Min Max Uni<br />
t<br />
IVCCSM DDR2 System Memory Interface (1.8 V) Supply Current — 4.0 A 1,2,3<br />
ISUS_VCCSM DDR2 System Memory Interface (1.8 V) Standby Supply Current — 25 mA 1<br />
ISMVREF<br />
ISUS_SMVREF<br />
ITTRC<br />
ISUS_TTRC<br />
DDR2 System Memory Interface Reference Voltage (0.90 V)<br />
Supply Current<br />
DDR2 System Memory Interface Reference Voltage (0.90 V)<br />
Standby Supply Current<br />
DDR2 System Memory Interface Resister Compensation<br />
Voltage (1.8 V) Supply Current<br />
DDR2 System Memory Interface Resister Compensation<br />
Voltage (1.8 V) Standby Supply Current<br />
— 2 mA 1<br />
— 10 µA 1<br />
— 36 mA 1<br />
— 10 µA 1<br />
IVCCA_SMPLL System Memory PLL Analog (1.5 V) Supply Current — 66 mA 1<br />
Notes<br />
NOTES:<br />
1. Estimate is only for max current coming through (G)MCH supply balls<br />
2. Calculated for highest frequencies<br />
3. Icc_max values are determined on a per-interface basis. Maximum currents cannot occur simultaneously on<br />
all interfaces.<br />
263
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