Mobile Intel Pentium 4 Processor - M and Intel 845MP/MZ Chipset Platform Design Guide

Mobile Intel
®
Pentium
®
4 Processor-M and Intel
®
845MP/845MZ Chipset Platform
Design Guide 175
R
Table 61. DDR SDRAM Memory Voltage & Current Specification
Name "Vdd" "Vddq" "Vref" Description
PURPOSE CORE
SUPPLY
VOLTAGE,
STATIC
I/O SUPPLY
VOLTAGE ,
STATIC
I/O REFERENCE
SUPPLY VOLTAGE,
STATIC
SPECIFICATION
DEFINITION
Vdd Vddq Vref = (Vdd/2) ±0.050 V ((2.5 V+/-8%)/2) ±0.050 V
VOLTAGE Nominal
(V)
2.500 2.500 1.250
TOLERANCE (±%) 8.0% 8.0% 4.0%
TOLERANCE (±-V) 0.200 0.200 0.050
MAX ABSOLUTE
SPEC VALUE (V)
2.700 2.700 1.400 ((2.5 V+8%)/2)+0.050 V
MIN ABSOLUTE
PEC VALUE (V)
2.300 2.300 1.100 ((2.5 V-8%)/2)-0.050 V
MAX RELATIVE
SPEC (calculated
from measured
"Vdd" value)
na na (measuredVdd/2)+0.050 V
MIN RELATIVE
SPEC (calculated
from measured
"Vdd" value)
na na (measuredVdd/2)-0.050 V
Idd (max) Iddq (max) Iref (max)
ABSOLUTE
MAXIMUM
CURRENT
REQUIREMENTS
5.000 0.920 0.001