Datasheet, Volume 1 87
Electrical Specifications
Notes:
1. VAXG is VID based rail.
2. The VAXG_MIN and VAXG_MAX loadlines represent static and transient limits.
3. The loadlines specify voltage limits at the die measured at the VAXG_SENSE and VSSAXG_SENSE lands.
Voltage regulation feedback for voltage regulator circuits must also be taken from processor VAXG_SENSE
and VSSAXG_SENSE lands.
4. PSx refers to the voltage regulator power state as set by the SVID protocol.
5. Each processor is programmed with a maximum valid voltage identification value (VID) that is set at
manufacturing and cannot be altered. Individual maximum VID values are calibrated duri ng man ufactu ring
such that two processors at the same frequency may have different settings within the VID range. This
differs from the VID employed by the processor during a power management event (Adaptive Thermal
Monitor, Enhanced Intel SpeedStep Technology, or Low Power States).
Table 7-6. Processor Graphics VID based (VAXG) Supply DC Voltage and Current Specifications
Symbol Parameter Min Typ Max Unit Note
VAXG GFX_VID
Range GFX_VID Range for VAXG 0.2500 — 1.5200 V 1
LLAXG VAXG Loadline Slope 4.1 m2, 3
VAXGTOB
VCC Tolerance Band
PS0, PS1
PS2
19
11.5
mV 2, 3, 4
VAXGRipple
Ripple:
PS0
PS1
PS2
±10
±10
-10/+15
mV 2, 3, 4
IAXG Current for Processor Graphics
core ——35A
IAXG_TDC Sustained current for Processor
Graphics core ——25 A
Table 7-7. DDR3 Signal Group DC Specifications (Sheet 1 of 2)
Symbol Parameter Min Typ Max Units Notes1,7
VIL Input Low Voltage ——
SM_VREF
– 0.1 V2, 4, 9
VIH Input High Voltage SM_VREF
+ 0.1 ——V3, 9
VIL Input Low Voltage
(SM_DRAMPWROK) ——
VDDQ*0.55
– 0.1 V8
VIH Input High Voltage
(SM_DRAMPWROK) VDDQ*0.55
+ 0.1 ——V8
VOL Output Low Voltage (VDDQ / 2)* (RON
/(RON+RTERM)) —6
VOH Output High Voltage VDDQ - ((VDDQ / 2)*
(RON/(RON+RTERM)) —V4, 6
RON_UP(DQ) DDR3 Data Buffer pull-
up Resistance 20 28.6 40 5
RON_DN(DQ) DDR3 Data Buffer pull-
down Resistance 20 28.6 40 5
RODT(DQ)
DDR3 On-die
termination equivalent
resistance for data
signals
40 50 60
VODT(DC)
DDR3 On-die
termination DC working
point (driver set to
receive mode)
0.4*VDDQ 0.5*VDDQ 0.6*VDDQ V