WED3DG644V133D1I-S datasheet(4/8 Pages) WEDC

Part #	WED3DG644V133D1I-S

Description	32MB - 4Mx64 SDRAM, UNBUFFERED

Download	8 Pages

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Manufacturer	WEDC [White Electronic Designs Corporation]

Direct Link	http://www.whiteedc.com

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4 / 8 page

WED3DG644V-D1

White Electronic Designs

4

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

June 2006

Rev. 3

OPERATING CURRENT CHARACTERISTICS

(VCC = 3.3V, TA = 0°C to +70°C)

Version

Parameter

Symbol

Conditions

133/100

Units

Note

Operating Current

(One bank active)

ICC1

Burst Length = 1

tRC ≤ tRC(min)

IOL = 0mA

300

mA

1

Precharge Standby Current

in Power Down Mode

ICC2P

CKE ≤ VIL(max), tCC = 10ns

4

mA

ICC2PS

CKE & CLK ≤ VIL(max), tCC = ∞

4

Precharge Standby Current

in Non-Power Down Mode

ICC2N

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

Input signals are charged one time during 20

48

mA

ICC2NS

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

Input signals are stable

24

Active Standby Current in

Power-Down Mode

ICC3P

CKE ≥ VIL(max), tCC = 10ns

8

mA

ICC3PS

CKE & CLK ≤ VIL(max), tCC = ∞

8

Active Standby Current in

Non-Power Down Mode

ICC3N

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

Input signals are changed one time during 20ns

80

mA

ICC3NS

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

Input signals are stable

40

mA

Operating Current (Burst mode)

ICC4

Io = mA

Page burst

4 Banks activated

tCCD = 2CLK

460

mA

1

Refresh Current

ICC5

tRC ≥ tRC(min)

360

mA

2

Self Refresh Current

ICC6

CKE ≤ 0.2V

4

mA

Notes:

1.

Measured with outputs open.

2.

Refresh period is 64ms.

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