Specification Sheet

PID: 43375 Rev 3.46 - September 2010 AMD Family 10h Desktop Processor
Power and Thermal Data Sheet
91Power Supply Specifications
Table 28. bsmmmmrr J ncdd AC and DC Operating Conditions for non-VDD Power Supplies
Symbol Parameter Units Min Typ Max Notes
VDDIO_ d c
VDDIO Su p p ly Vo lt a g e fo r
DDR2 electricals
V 1.70 1.80 1.90 1
VDDIO_ a c VDDIO Su p p ly v o lt a g e V
VDDIO_dc –
150 mV
VDDIO_ d c
VDDIO_dc + 150
mV
2, 3
VLDT VLDT Supply Voltage V 1.14 1.20 1.26 12
VTT_dc
VTT Supply Voltage for
DDR2 electricals
V 0.85 0.90 0.95 4
VTT_ac VTT Supply Voltage V
VTT_dc –
75mV
VTT_dc VTT_dc + 75mV 2, 3
VDDA VDDA Supply Voltage V 2.40 2.50 2.60
IDDIO1
VDDIO Power Supply
Current
A 3.60 7, 9
ITT1 VTT Power Supply Current A 1.75 6, 8, 9
1.40/ link 5, 9
0.65/ link 9,10,11
IDDA
VDDA Power Supply
Current
mA 250 9
Notes:
be carefully considered and compensated for. For example, if the inaccuracy and IR drop amounts to 50 mV, then
ILDT
specified maximum and minimum range. As such, factors such as voltage regulator inaccuracy and IR drop must
set accordingly to ensure that VDDIO_dc level measured at the VDDIO_FB_H/L pins does not exceed the
1) All voltages are referenced to VSS. In order to ensure proper functionality, DC voltage regulator must be
A
VLDT Power Supply
Current
the voltage regulator setting for VDDIO should not be lower than 1.75 V to avoid violating the VDDIO_dc
minimum spec of 1.70 V.
2) VDDIO_ac and VTT_ac parameters are measured over 60 seconds time frame with all
data bus bits switching.
minimum range. Factors such as voltage regulator inaccuracy and IR drop must be carefully considered and
compensated for. For example, if the inaccuracy and IR drop amounts to 20 mV, the voltage regulator setting
must be set 20 mV higher so that VTT still tracks 0.5*VDDIO_dc and stays within the range
11) Please refer to erratum 396.
10) ILDT is specified for each unconnected HyperTransport™ link or for each 16x16 bit Gen1
HyperTransport link operating at max 2.0 GT/s or less.
12) Tolerances apply to both VLDT_dc and VLDT_ac conditions.
5) ILDT is specified for one 16x16-bit Gen3 link.
3) Power supply A/C measurements use a 20-MHz scope bandwidth limit.
8) VTT current is consumed by I, O, I/O switching current and on-chip functions (PDL, DLL, level-shifters, etc.).
9) This specification reflects the values published in the appropriate power roadmap document.
4) All voltages are referenced to VSS. Voltage regulator for VTT must be set accordingly so that VTT_dc level
measured at the processor VTT_SENSE pin tracks 0.5*VDDIO_dc and stays within the specified maximum and
of 0.85 V and 0.95 V.
6) VTT must both sink and source current.
7) VDDIO current is consumed by I, O, I/O switching current and on-chip functions (PDL, DLL, level-shifters, etc.).