WV3EG265M72EFSU262D4M datasheet(4/11 Pages) WEDC

Part #	WV3EG265M72EFSU262D4M

Description	1GB - 2x64Mx72 DDR SDRAM, UNBUFFERED, PLL, FBGA

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Manufacturer	WEDC [White Electronic Designs Corporation]

Direct Link	http://www.whiteedc.com

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WV3EG265M72EFSU-D4

4

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

White Electronic Designs

May 2006

Rev. 0

ADVANCED

DC ELECTRICAL CHARACTERISTICS

PARAMETER/CONDITION

SYMBOL

MIN

MAX

UNITS

Notes

Supply Voltage DRR266/DDR333 (nominal VCC 2.5V)

VCC

2.3

2.7

V

I/O Supply Voltage DRR266/DDR333 (nominal VCC 2.5V

VCCQ

2.3

2.7

V

I/O Reference Voltage

VREF

0.49 × VCC

0.51 × VCC

V1

I/O Termination Voltage

VTT

VREF - 0.04

VREF + 0.04

V

2

Input Logic High Voltage

VIH(DC)

VREF + 0.15

VCC + 0.30

V

Input Logic Low Voltage

VIL(DC)

-0.3

VREF - 0.15

V

Input voltage level, CK and CK#

VIN(DC)

-0.3

VREF + 0.30

V

Input differential voltage, CK and CK#

VID(DC)

0.3

VREF + 0.60

V

3

Input crossing point voltage, CK and CK#

VIX(DC)

0.3

VREF - 0.60

V

Input leakage current

Addr CAS#,

RAS#, WE#

II

-36

36

µA

CS#, CKE

-18

18

µA

CK, CK#

-10

10

µA

DM

-4

4

µA

Output leakage current

IOZ

-10

10

µA

Output high current (normal strength) VOUT = v +0.84V

IOH

-16.8

mA

Output high current (normal strength) VOUT = VTT - 0.84V

IOL

16.8

mA

Output high current (half strength) VOUT = VTT - 0.45V

IOH

-9

mA

Output high current (half strength) VOUT = VTT - 0.45V

IOL

9mA

Notes:

1

VREF is expected to equal to 0.5*VCCQ of the transmitting device and to track variations in the DC level of the same. Peak-to-peak noise on VREF may not exceed +/-2 percent of the

DC value.

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. VID is the magnitude of the difference between the input level on CK and the input level of CK#.

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Units

VIN, VOUT

Voltage on VCC pin relative to VSS

-0.5 ~ 3.6

V

VCC, VCCQ

Voltage on VCC & VCCQ supply relative to VSS

-1.0 ~ 3.6

V

VREF

Voltage of VREF supply relative to VSS

-1.0 ~ 3.6

V

TSTG

Storage Temperature

-55 ~ +150

°C

TA

Operating temperature

0 ~ 70

°C

PD

Power dissipation

18

W

IOS

Short circuit output current

50

mA

Notes:

Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceed.

Functional ioeration should be restricted to recommended operation conditions.

Exposing to higher than recommended voltage for extended periods of time could affect device reliability.

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