WED3DG649V-D1 Просмотр технического описания (PDF) - White Electronic Designs Corporation

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WED3DG649V-D1

64MB- 8Mx64 SDRAM, UNBUFFERED

White Electronic Designs Corporation 

White Electronic Designs

WED3DG649V-D1

OPERATING CURRENT CHARACTERISTICS

(VCC = 3.3V, TA = 0°C ≤ +70°C)

Version

Parameter

Operating Current

(One bank active)

Precharge Standby Current

in Power Down Mode

Precharge Standby Current

in Non-Power Down Mode

Symbol

Conditions

133/100 Units

Note

ICC1

Burst Length = 1

tRC ≥ tRC(min)

IOL = 0mA

560

mA

1

ICC2P

CKE ≤ VIL(max), tCC = 10ns

4

mA

ICC2PS

CKE & CLK ≤ VIL(max), tCC = ≤

4

ICC2N

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

Input signals are charged one time during 20

80

ICC2NS

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

Input signals are stable

mA

30

Active Standby Current in

Power-Down Mode

ICC3P

ICC3PS

CKE ≥ VIL(max), tCC = 10ns

CKE & CLK ≤ VIL(max), tCC = ∞

20

mA

20

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

120

mA

ICC3NS

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

Input signals are stable

80

mA

ICC4

Operating Current (Burst mode)

Io = mA

Page burst

4 Banks activated

tCCD = 2CLK

580

mA

1

Refresh Current

ICC5

tRC ≥ tRC(min)

840

mA

2

Self Refresh Current

ICC6

CKE ≤ 0.2V

6

mA

Notes: 1. Measured with outputs open.

2. Refresh period is 64ms.

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

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

May 2004

Rev. 1

4

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

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