EBD25RB4ALFA
Electrical Specifications
• All voltages are referenced to VSS (GND).
• After power up, wait more than 1ms and then, execute power on sequence and CBR (Auto) refresh before proper
device operation is achieved.
Absolute Maximum Ratings
Parameter
Symbol
Value
Unit
V
Note
Voltage on any pin relative to VSS
Supply voltage relative to VSS
Short circuit output current
Power dissipation
VT
–0.5 to +3.6
–0.5 to +3.6
50
VDD, VDDQ
V
IO
mA
W
PD
TA
21
Operating temperature
Storage temperature
0 to +70
–55 to +125
°C
°C
Tstg
Caution Exposin g the device to str ess 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.
DC Operating Conditions (TA = 0 to +70°C)
Parameter
Symbol
min.
Typ
2.5
0
max.
Unit
V
Notes
1, 2
Supply voltage
VDD, VDDQ 2.3
2.7
VSS
0
0
V
Input reference voltage
Termination voltage
VREF
VTT
0.49 × VDDQ
—
0.51 × VDDQ
VREF + 0.04
VDDQ + 0.3
VREF – 0.18
VDDQ + 0.3
VDDQ + 0.6
V
1
VREF – 0.04 VREF
V
1
DC Input high voltage
DC Input low voltage
DC Input signal voltage
DC differential input voltage
VIH
VREF + 0.18
–0.3
—
—
—
—
V
1, 3
1, 4
5
VIL
V
VIN (dc)
–0.3
V
VSWING (dc) 0.36
V
6
Notes: 1. All parameters are referred to VSS, when measured.
2. VDDQ must be lower than or equal to VDD.
3. VIH is allowed to exceed VDD up to 4.6V for the period shorter than or equal to 5ns.
4. VIL is allowed to outreach below VSS down to –1.0V for the period shorter than or equal to 5ns.
5. VIN (dc) specifies the allowable dc execution of each differential input.
6. VSWING (dc) specifies the input differential voltage required for switching.
Preliminary Data Sheet E0211E11 (Ver. 1.1)
11
ELPIDA [ ELPIDA MEMORY ]
