W3DG727V10D2 datasheet(4/5 Pages) WEDC

Part #	W3DG727V10D2

Description	64MB - 8Mx72 SDRAM UNBUFFERED

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Manufacturer	WEDC [White Electronic Designs Corporation]

Direct Link	http://www.whiteedc.com

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4 / 5 page

Sept. 2002

Rev. 0

W3DG727V-D2

4

White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

White Electronic Designs

White Electronic Designs Corp. reserves the right to change products or speciﬁcations without notice.

OPERATING CURRENT CHARACTERISTICS

(VCC = 3.3V, 0°C £ TA +70°C)

Notes:

1.

Measured with outputs open.

2.

Refresh period is 64ms.

3.

Unless otherwise noticed, input swing level is CMOS (VIH/VIL = VCCQ/VssQ)

Parameter

Symbol

Conditions

Version

Units

Note

133

100

Operating Current

(One bank active)

ICC1

Burst Length = 1

tRC ≥ tRC(min)

IOL = 0mA

675

630

mA

1

Precharge Standby Current

Power Down Mode

ICC2P

CKE ≤ VIL(max), tCC = 10ns

10

mA

ICC2PS

CKE & CLK ≤ VIL(max), tCC = ∞

10

Precharge Standby Current

Non Power Down Mode

ICC2N

CKE ≥ VIH(min), CS ≥ VIH(min), tcc = 10ns

Input signals are charged one time during 20

135

mA

ICC2NS

CKE ≥ VIH(min), CLK ≤ VIL(max), tcc = ∞

Input signals are stable

55

Active standby current

Power Down Mode

ICC3P

CKE ≥ VIL(max), tCC = 10ns

30

mA

ICC3PS

CKE & CLK ≤ VIL(max), tcc = ∞

30

Active standby current

Non Power Down Mode

ICC3N

CKE ≥ VIH(min), CS ≥ VIH(min), tcc = 10ns

Input signals are changed one time during 20ns

225

mA

ICC3NS

CKE ≥ VIH(min), CLK ≤ VIL(max), tcc = ∞

Input signals are stable

140

mA

Operating current

(Burst mode)

ICC4

Io = mA

Page burst

4 Banks activated

tCCD = 2CLK

1,035

855

mA

1

Refresh current

ICC5

tRC ≥ tRC(min)

1,215

1,125

mA

2

Self refresh current

ICC6

CKE ≤ 0.2V

10

mA

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