WV3HG64M72EEU806PD4MG datasheet(4/11 Pages) WEDC

Il numero della parte	WV3HG64M72EEU806PD4MG

Spiegazioni elettronici	512MB - 64Mx72 DDR2 SDRAM, UNBUFFERED SO-DIMM, w/PLL

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Produttore elettronici	WEDC [White Electronic Designs Corporation]

Homepage	http://www.whiteedc.com

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WV3HG64M72EEU-PD4

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

-1.0

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#,

-45

45

µA

CS#, CKE

-45

45

µA

CK, CK#

-10

10

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

-18

18

µA

DC OPERATING CONDITIONS

All voltages referenced to VSS

Parameter

Symbol

Min

Typical

Max

Unit

Notes

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

SPD Supply Voltage

VCCSPD

1.7

-

3.6

V

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 is not 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.

OPERATING TEMPERATURE CONDITION

Parameter

Symbol

Rating

Units

Notes

Operating Case Temperature (Commercial)

TOPER

0 to +85°C

°C

1, 2

NOTE:

1. Operation temperature is the case surface temperature on the center/top side of the DRAM. For the measurement conditions, please refer to JEDEC JESD51.2

2. At 0 - 85

°C, operation temperature range, all DRAM speciﬁcation will be supported.

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