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EBE51ED8AEFA-6 Datasheet(数据表) 13 Page - Elpida Memory

部件型号  EBE51ED8AEFA-6
说明  512MB Unbuffered DDR2 SDRAM DIMM (64M words x 72 bits, 1 Rank)
下载  22 Pages
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制造商  ELPIDA [Elpida Memory]
网页  http://www.elpida.com/en
标志 ELPIDA - Elpida Memory

EBE51ED8AEFA-6 Datasheet(HTML) 13 Page - Elpida Memory

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EBE51ED8AEFA-6
Data Sheet E0724E10 (Ver. 1.0)
13
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
VTT + 0.603
V
5
Maximum required output pull-down under
AC test load
VOL
VTT – 0.603
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 18
Ω at TA = 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, 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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