EDD2508AKTA-6BLI ELPIDA [Elpida Memory], EDD2508AKTA-6BLI Datasheet - Page 4

• Manufacturer Part Number: EDD2508AKTA-6BLI
• Description: 256M bits DDR SDRAM WTR (Wide Temperature Range)
• Manufacturer: ELPIDA [Elpida Memory]

Electrical Specifications
• All voltages are referenced to VSS (GND).
• After power up, wait more than 200 µs and then, execute power on sequence and CBR (Auto) refresh before
Absolute Maximum Ratings
Parameter
Voltage on any pin relative to VSS
Supply voltage relative to VSS
Short circuit output current
Power dissipation
Operating temperature
Storage temperature
Caution
Recommended DC Operating Conditions (TA = –40 to +85°C)
Parameter
Supply voltage
Input reference voltage
Termination voltage
Input high voltage
Input low voltage
Input voltage level,
CK and /CK inputs
Input differential cross point
voltage, CK and /CK inputs
Input differential voltage,
CK and /CK inputs
Notes: 1. VDDQ must be lower than or equal to VDD.
Preliminary Data Sheet E0434E10 (Ver. 1.0)
proper device operation is achieved.
Exposing the device to stress above those listed in Absolute Maximum Ratings could cause
permanent damage. The device is not meant to be operated under conditions outside the limits
described in the operational section of this specification. Exposure to Absolute Maximum Rating
conditions for extended periods may affect device reliability.
2. VIH is allowed to exceed VDD up to 3.6V for the period shorter than or equal to 5ns.
3. VIL is allowed to outreach below VSS down to –1.0V for the period shorter than or equal to 5ns.
4. VIN (DC) specifies the allowable DC execution of each differential input.
5. VID (DC) specifies the input differential voltage required for switching.
6. VIH (CK) min assumed over VREF + 0.18V, VIL (CK) max assumed under VREF – 0.18V
if measurement.
Symbol
VDD,
VDDQ
VSS,
VSSQ
VREF
VTT
VIH (DC)
VIN (DC)
VIX (DC)
VID (DC)
VIL (DC)
Symbol
VT
VDD
IOS
PD
TA
Tstg
min.
2.3
0
0.49 × VDDQ
VREF – 0.04
VREF + 0.15
–0.3
–0.3
0.5 × VDDQ − 0.2V
0.36
4
Rating
–1.0 to +3.6
–1.0 to +3.6
50
1.0
–40 to +85
–55 to +125
typ
2.5
0
0.50 × VDDQ
VREF
—
—
—
0.5 × VDDQ
—
max.
2.7
0
0.51 × VDDQ
VREF + 0.04
VDDQ + 0.3
VREF – 0.15
VDDQ + 0.3
0.5 × VDDQ + 0.2V V
VDDQ + 0.6
EDD2508AKTA-LI
Unit
V
V
mA
W
°C
°C
Unit
V
V
V
V
V
V
V
V
Note
Notes
1
2
3
4
5, 6