EBE10RD4AJFA Datasheet, PDF (14/30 Pages) Elpida Memory – 1GB Registered DDR2 SDRAM DIMM

EBE10RD4AJFA
DC Characteristics 2 (TC = 0°C to +85°C, VDD, VDDQ = 1.8V ± 0.1V)
(DDR2 SDRAM Component Specification)
Parameter
Symbol
Value
Unit Notes
Input leakage current
ILI
2
µA VDD ≥ VIN ≥ VSS
Output leakage current
ILO
5
µA VDDQ ≥ VOUT ≥ VSS
Minimum required output pull-up under AC
test load
VOH
Maximum required output pull-down under
AC test load
VOL
VTT + 0.603
VTT − 0.603
V
5
V
5
Output timing measurement reference level VOTR
0.5 × VDDQ
V
1
Output minimum sink DC current
IOL
+13.4
mA 3, 4, 5
Output minimum source DC current
IOH
−13.4
mA 2, 4, 5
Notes: 1. The VDDQ of the device under test is referenced.
2. VDDQ = 1.7V; VOUT = 1.42V.
3. VDDQ = 1.7V; VOUT = 0.28V.
4. The DC value of VREF applied to the receiving device is expected to be set to VTT.
5. After OCD calibration to 18Ω at TC = 25°C, VDD = VDDQ = 1.8V.
DC Characteristics 3 (TC = 0°C to +85°C, VDD, VDDQ = 1.8V ± 0.1V)
(DDR2 SDRAM Component Specification)
Parameter
Symbol
min.
max.
Unit Notes
AC differential input voltage
VID (AC)
0.5
VDDQ + 0.6
V
1, 2
AC differential cross point voltage
VIX (AC)
0.5 × VDDQ − 0.175 0.5 × VDDQ + 0.175 V
2
AC differential cross point voltage
VOX (AC)
0.5 × VDDQ − 0.125 0.5 × VDDQ + 0.125 V
3
Notes: 1. VID (AC) specifies the input differential voltage |VTR -VCP| required for switching, where VTR is the true
input signal (such as CK, DQS, RDQS) and VCP is the complementary input signal (such as /CK, /DQS,
/RDQS). The minimum value is equal to VIH (AC) − VIL (AC).
2. The typical value of VIX (AC) is expected to be about 0.5 × VDDQ of the transmitting device and VIX (AC)
is expected to track variations in VDDQ. VIX (AC) indicates the voltage at which differential input signals
must cross.
3. The typical value of VOX (AC) is expected to be about 0.5 × VDDQ of the transmitting device and VOX
(AC) is expected to track variations in VDDQ. VOX (AC) indicates the voltage at which differential output
signals must cross.
VDDQ
VTR
VCP
VID
Crossing point
VIX or VOX
VSSQ
Differential Signal Levels*^{1, 2}
Data Sheet E1038E30 (Ver. 3.0)
14