512MB, 1GB, 2GB: (x64, DR) 240-Pin DDR2 SDRAM UDIMM
Electrical Specifications
Electrical Specifications
Stresses greater than those listed in Table 6 may cause permanent damage to the device.
This is a stress rating only, and functional operation of the device at these or any other
conditions above those indicated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may
affect reliability.
Table 6:
Absolute Maximum Ratings
Parameter
Symbol
Min
Max
Units
VDD
VDDQ
VDDL2
VIN, VOUT
TSTG
–1.0
–0.5
–0.5
–0.5
–55
0
2.3
2.3
2.3
2.3
100
85
V
V
VDD supply voltage relative to VSS
VDDQ supply voltage relative to VSS
VDDL supply voltage relative to Vss
Voltage on any pin relative to VSS
Storage temperature
V
V
°C
°C
°C
Tcase
DDR2 SDRAM device operating temperature (ambient)
Operating temperature (ambient)
TOPR
0
55
II
Input leakage current; Any input 0V ≤ VIN ≤ VDD;
VREF input 0V ≤ VIN ≤0.95V;
(All other pins not under test = 0V)
Command/address,
RAS#, CAS#, WE#
–80
80
S#, CKE1
–40
–20
–30
–10
40
20
30
10
µA
CK0, CK0#
CK1, CK1#, CK2, CK2#
DM
IOZ
–
Output leakage current; 0V ≤ VOUT ≤ VDDQ; DQ and DQ, DQS, DQS#
ODT are disabled
–10
–32
10
32
µA
µA
VREF leakage current; VREF = Valid VREF level
Notes: 1. S# is defined to be S0# and S1#. CKE includes both CKE0 and CKE1.
2. VDDL is the power supply for the DDR2 devices’ DLL; however, this power supply is not
brought directy to a DIMM pin.
Capacitance
At DDR2 data rates, Micron encourages designers to simulate the performance of the
module to achieve optimum values. When inductance and delay parameters associated
with trace lengths are used in simulations, they are significantly more accurate and real-
istic than a gross estimation of module capacitance. Simulations can then render a
considerably more accurate result. JEDEC modules are now designed by using simula-
tions to close timing budgets.
PDF: 09005aef80f09084/Source: 09005aef80f09068
HTF16C64_128_256x64AG.fm - Rev. D 5/06 EN
Micron Technology, Inc., reserves the right to change products or specifications without notice.
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©2003 Micron Technology, Inc. All rights reserved.
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