EBE21UE8ACUA
DC Characteristics 2 (TC = 0°C to +85°C, VDD, VDDQ = 1.8V ± 0.1V)
(DDR2 SDRAM Component Specification)
Parameter
Symbol
ILI
Value
Unit
µA
Notes
Input leakage current
Output leakage current
2
5
VDD ≥ VIN ≥ VSS
VDDQ ≥ VOUT ≥ VSS
ILO
µA
Minimum required output pull-up under AC
test load
VOH
VOL
VTT + 0.603
V
V
5
5
Maximum required output pull-down under
AC test load
VTT − 0.603
Output timing measurement reference level VOTR
0.5 × VDDQ
+13.4
V
1
Output minimum sink DC current
Output minimum source DC current
IOL
mA
mA
3, 4, 5
2, 4, 5
IOH
−13.4
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
V
Notes
1, 2
2
AC differential input voltage
AC differential cross point voltage
AC differential cross point voltage
VID (AC)
VIX (AC)
VOX (AC)
0.5
VDDQ + 0.6
0.5 × VDDQ − 0.175
0.5 × VDDQ − 0.125
0.5 × VDDQ + 0.175
0.5 × VDDQ + 0.125
V
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
Crossing point
VID
VIX or VOX
VCP
VSSQ
Differential Signal Levels*1, 2
Data Sheet E1217E10 (Ver. 1.0)
13
ELPIDA [ ELPIDA MEMORY ]
