EDE1104ACSE-5C-E datasheet(11/82 Pages) ELPIDA

Part #	EDE1104ACSE-5C-E

Description	1G bits DDR2 SDRAM

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Manufacturer	ELPIDA [Elpida Memory]

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EDE1104ACSE, EDE1108ACSE, EDE1116ACSE

Data Sheet E0975E50 (Ver.5.0)

11

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

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 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, 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.

Crossing point

VSSQ

VTR

VCP

VID

VIX or VOX

VDDQ

Differential Signal Levels*

1, 2

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EDE1104ACSE-5C-E Datasheet(PDF) 11 Page - Elpida Memory

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