WV3HG64M32EEU534D4ISG datasheet(4/11 Pages) WEDC

部件名	WV3HG64M32EEU534D4ISG

功能描述	256MB - 64Mx32 DDR2 SDRAM UNBUFFERED

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制造商	WEDC [White Electronic Designs Corporation]

网页	http://www.whiteedc.com

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4 / 11 page

WV3HG64M32EEU-D4

May 2006

Rev. 2

ADVANCED

4

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

White Electronic Designs

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Min

Max

Units

VCC

Voltage on VCC pin relative to VSS

-0.5

2.3

V

VIN, VOUT

Voltage on any pin relative to VSS

-0.5

2.3

V

TSTG

Storage Temperature

-55

100

˚C

IL

Input leakage current; Any input 0V<VIN<VCC; VREF input

0V<VIN<0.95V; Other pins not under test = 0V

Command/Address,

RAS#, CAS#, WE#

-20

20

µA

CS#, CKE

-20

20

µA

CK, CK#

-20

20

µA

DM

-5

5

µA

IOZ

Output leakage current; 0V<VIN<VCC; DQs and ODT are

disable

DQ, DQS, DQS#

-5

5

µA

IVREF

VREF leakage current; VREF = Valid VREF level

-8

8

µA

DC OPERATING CONDITIONS

All voltages referenced to VSS

Parameter

Symbol

Rating

Units

Notes

Min.

Type

Max.

Supply Voltage

VCC

1.7

1.8

1.9

V

3

I/O Reference Voltage

VREF

0.49 x VCC

0.50 x VCC

0.51 x VCC

V1

I/O Termination Voltage

VTT

VREF-0.04

VREF

VREF+0.04

V

2

Notes:

1. VREF is expected to equal VCC/2 of the transmitting device and to track variations in the DC level of the same. Peak-to-peak noise on VREF may not exceed +/-1 percent of the DC

value. Peak-to-peak AC noise on VREF may not exceed +/-2 percent of VREF. This measurement is to be taken at the nearest VREF bypass capacitor.

2. VTT in sot applied directly to the device. VTT is a system supply for signal termination resistors, is expected to be set equal to VREF and must track variations in the DC level of VREF.

3. VCCQ of all IC's are tied to VCC.

类似零件编号 - WV3HG64M32EEU534D4ISG

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White Electronic Design...	WV3HG64M64EEU-D4	172Kb / 11P	512MB - 64Mx64 DDR2 SDRAM UNBUFFERED, SO-DIMM
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	WV3HG64M64EEU403D4MG	172Kb / 11P	512MB - 64Mx64 DDR2 SDRAM UNBUFFERED, SO-DIMM

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