nt256t64uh4a1fy Nanya Techology, nt256t64uh4a1fy Datasheet - Page 8

• Manufacturer Part Number: nt256t64uh4a1fy
• Description: 240pin Unbuffered Ddr2 Sdram Module
• Manufacturer: Nanya Techology

NT256T64UH4A1FY
256MB: 32M x 64
Unbuffered DDR2 SDRAM DIMM
Absolute Maximum Ratings
Note: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is
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.
DC operating Conditions
Note:
DC Electrical Characteristics and Operating Conditions
(T
Note:
1.
2.
On Die Termination (ODT) Current
REV 1.3
08/2006
Symbol
IODTO
IODTT
V
CASE
Symbol
V
SS,
V
V
Symbol
V
V
Symbol
IH (DC)
IL (DC)
T
V
IN
1.
2.
3.
Inputs are not recognized as valid until V
V
Peak-to-peak noise on V
T
H
T
V
DDQ
H
REF
T
CASE
V
DD
= 0 °C ~ 85 ° C; V
REF
, V
STG
OPR
OPR
V
DDQ
T
I
STG
STG
DD
L
SSQ
A
OUT
Case temperature is measured at top and center side of any DRAMs.
t
All DRAM specification only support 0°C < t
Enabled ODT current per DQ
ODT is HIGH; Data Bus inputs are FLOATING
Active ODT current per DQ
ODT is HIGH; worst case of Data Bus inputs are STABLE or SWITCHING
CASE
is expected to be equal to 0.5 V
Supply Voltage
I/O Supply Voltage
Supply Voltage, I/O Supply Voltage
I/O Reference Voltage
Input High (Logic1) Voltage
Input Low (Logic0) Voltage
> 85° C
Operating Temperature (Ambient)
Storage Temperature (Plastic)
Short Circuit Output Current
Module Operating Temperature Range (ambient)
Operating Humidity (relative)
Voltage on I/O pins relative to Vss
Voltage on VDD supply relative to Vss
Voltage on VDDQ supply relative to Vss
Storage Humidity (without condensation)
Operating Temperature (Ambient)
Storage Temperature (Plastic)
DDQ
t
REFI
= 1.8V ± 0.1V; V
REF
= 3.9 s
may not exceed 2% of the DC value.
Parameter
DDQ
DD
Parameter
Parameter
REF
Parameter
= 1.8V ± 0.1V, See AC Characteristics)
of the transmitting device, and to track variations in the DC level of the same.
stabilizes.
CASE
< 85°C
8
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
V
REF
0.49V
Min
2.5
10
-55 to 100
Min
-0.3
5
5
1.7
1.7
10 to 90
+ 0.125
0
Rating
0 to 95
0 to 55
-5 to 5
DDQ
-1.0 to +2.3
-0.5 to +2.3
-55 to +100
Max
3.75
7.5
7.5
-0.5 to 2.3
15
0 to +70
5 to 95
Rating
V
V
0.51V
REF
DDQ
Max
1.9
1.9
0
- 0.125
mA/DQ
mA/DQ
mA/DQ
mA/DQ
+ 0.3
DDQ
Units
© NANYA TECHNOLOGY CORP.
Units
° C
° C
° C
%
Units
A
EMRS(1) State
V
V
V
V
V
V
A6=0, A2=1
A6=1, A2=0
A6=0, A2=1
A6=1, A2=0
Units
Notes
Note
1,2,3
° C
° C
%
V
V
V
1, 2
1
1
1
1