EBJ21UE8BDS1
Recommended DC Operating Conditions (TC = 0°C to +85°C)
Parameter
Symbol
min.
1.425
0
typ.
1.5
0
max.
1.575
0
Unit
V
Notes
1, 2, 3
1
Supply voltage
VDD, VDDQ
VSS
V
VDDSPD
3.0
3.3
3.6
V
Input reference voltage for
address, command inputs
VREFCA (DC) 0.49 × VDD
VREFDQ (DC) 0.49 × VDD
—
0.51 × VDD
V
1, 4, 5
1, 4, 5
Input reference voltage for
DQ, DM inputs
—
—
0.51 × VDD
0.51 × VDD
V
V
Termination voltage
VTT (DC)
0.49 × VDD
Notes: 1. DDR3 SDRAM component specification.
2. Under all conditions VDDQ must be less than or equal to VDD.
3. VDDQ tracks with VDD. AC parameters are measured with VDD and VDDQ tied together.
4. The AC peak noise on VREF may not allow VREF to deviate from VREF(DC) by more than ±1% VDD (for
reference: approx ±15 mV).
5. For reference: approx. VDD/2 ±15 mV.
Data Sheet E1623E20 (Ver. 2.0)
11
ELPIDA [ ELPIDA MEMORY ]
