EDE1104AASE 查看數據表（PDF） - Elpida Memory, Inc

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EDE1104AASE

1G bits DDR2 SDRAM

Elpida Memory, Inc 

EDE1104AASE, EDE1108AASE

DC Characteristics 2 (TC = 0°C to +85°C, VDD, VDDQ = 1.8V ± 0.1V)

Parameter

Symbol

Value

Unit Notes

Input leakage current

ILI

2

µA VDD ≥ VIN ≥ VSS

Output leakage current

ILO

Minimum required output pull-up under AC

test load

VOH

Maximum required output pull-down under

AC test load

VOL

Output timing measurement reference level VOTR

5

VTT + 0.603

VTT − 0.603

0.5 × VDDQ

µA VDDQ ≥ VOUT ≥ VSS

V

5

V

5

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)

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) and VCP is the complementary input signal (such as /CK, /DQS). 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 E0404E20 (Ver. 2.0)

9

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