參數資料
型號： EDE5108ABSE
廠商： Elpida Memory, Inc.
英文描述： 512M bits DDR2 SDRAM
中文描述： 512M比特DDR2 SDRAM內存
文件頁數： 9/66頁
文件大?。?/td> 697K
代理商： EDE5108ABSE
EDE5104ABSE, EDE5108ABSE, EDE5116ABSE
Data Sheet E0323E90 (Ver. 9.0)
9
DC Characteristics 2 (TC = 0 to +85
°
C, VDD, VDDQ = 1.8V
±
0.1V)
Parameter
Symbol
Value
Unit
Notes
Input leakage current
ILI
2
μ
A
VDD
≥
VIN
≥
VSS
Output leakage current
Minimum required output pull-up under AC
test load
Maximum required output pull-down under
AC test load
Output timing measurement reference level VOTR
ILO
5
μ
A
VDDQ
≥
VOUT
≥
VSS
VOH
VTT + 0.603
V
5
VOL
VTT
0.603
V
5
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 18
at TC = 25
°
C, VDD = VDDQ = 1.8V.
DC Characteristics 3 (TC = 0 to +85
°
C, VDD, VDDQ = 1.8V
±
0.1V)
Parameter
Symbol
min.
max.
Unit
Note
AC differential input voltage
VID (AC)
0.5
VDDQ
+
0.6
0.5
×
VDDQ
+
0.175
V
1, 2
AC differential cross point voltage
VIX (AC)
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, LDQS or UDQS) and VCP is the complementary input signal (such as
/CK, /DQS, /LDQS or /UDQS). 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.
Crossing point
VSSQ
VTR
VCP
VID
VIX or VOX
VDDQ
Differential Signal Levels*
1, 2
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