
HYS[64/72]D[16000/32020]GU-[7/8]-A
Unbuffered DDR SDRAM-Modules
Electrical Characteristics
Data Sheet
16
Rev. 1.02, 2003-11
3
Electrical Characteristics
3.1
Operating Conditions
Attention: Permanent damage to the device may occur if “Absolute Maximum Ratings” are exceeded. This
is a stress rating only, and functional operation should be restricted to recommended operation
conditions. Exposure to absolute maximum rating conditions for extended periods of time may
affect device reliability and exceeding only one of the values may cause irreversible damage to
the integrated circuit.
Table 6
Parameter
Absolute Maximum Ratings
Symbol
Values
typ.
–
Unit
Note/ Test
Condition
min.
–0.5
max.
V
DDQ
+
0.5
+3.6
+3.6
+3.6
+70
+150
–
Voltage on I/O pins relative to
V
SS
V
IN
,
V
OUT
V
–
Voltage on inputs relative to
V
SS
Voltage on
V
DD
supply relative to
V
SS
Voltage on
V
DDQ
supply relative to
V
SS
Operating temperature (ambient)
Storage temperature (plastic)
Power dissipation (per SDRAM component)
V
IN
V
DD
V
DDQ
T
A
T
STG
P
D
I
OUT
–1
–1
–1
0
-55
–
–
–
–
–
–
1
V
V
V
°
C
°
C
W
–
–
–
–
–
–
Short circuit output current
–
50
–
mA
–