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PDF WV3EG6437S-D4 Data sheet ( Hoja de datos )

Número de pieza WV3EG6437S-D4
Descripción 256MB - 2x16Mx64 DDR SDRAM SO-DIMM
Fabricantes White Electronic Designs 
Logotipo White Electronic Designs Logotipo



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No Preview Available ! WV3EG6437S-D4 Hoja de datos, Descripción, Manual

White Electronic Designs
WV3EG6437S-D4
ADVANCED*
256MB – 2x16Mx64 DDR SDRAM SO-DIMM, UNBUFFERED
FEATURES
DESCRIPTION
Unbuffered Double-data-rate architecture
DDR300 and DDR400
• JEDEC design specications
Bi-directional data strobes (DQS)
Differential clock inputs (CK & CK#)
Programmable Read Latency 2.5, 3
Programmable Burst Length (2,4,8)
Programmable Burst type (sequential & interleave)
Edge aligned data output, center aligned data input
Auto and self refresh, (8K/64ms Refresh)
Serial presence detect with EEPROM
Dual Rank
Power Supply: VCC = VCC: 2.5V ± 0.2V (DDR300)
VCC = VCCQ: 2.6V ± 0.1V (DDR400)
JEDEC standard 200 pin SO-DIMM package
• Package height options:
D4: 31.75mm (1.25") TYP
NOTE: Consult factory for availability of:
• RoHS compliant products
www.DatVaeSndhoer esotu4rUce.ccoonmtrol options
• Industrial temperature option
The WV3EG6437S is a 2x16Mx64 Double Data Rate
SDRAM memory module based on 256Mb DDR SDRAM
components. The module consists of eight 16Mx16 DDR
SDRAMs in 66 pin TSOP package mounted on a 200 Pin
FR4 substrate.
* This product is under development, is not qualied or characterized and is subject to
change without notice.
OPERATING FREQUENCIES
Clock Speed
CL-tRCD-tRP
DDR400@CL=3
200MHz
3-3-3
DDR333@CL=2.5
166MHz
2.5-3-3
White Electronic Designs Corp. reserves the right to change products or specications without notice.
June 2006
Rev. 0
1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

1 page




WV3EG6437S-D4 pdf
White Electronic Designs
WV3EG6437S-D4
ADVANCED
AC OPERATING CONDITIONS
All voltages referenced to VSS
Parameter
Symbol
Min.
Max.
Input High (Logic1) Voltage
Input Low (Logic0) Voltage
Input Differential Voltage, CK and CK# input
Input Crossing Point Voltage, CK and CK# input
VIH(AC)
VIL(AC)
VID(AC)
VIX(AC)
VREF + 0.31
0.7
0.5*VCC - 0.2
VREF - 0.31
VCCQ + 0.6
0.5*VCC + 0.2
Notes:
1. VIH overshoot: VIN = VCC + 1.5V for a pulse width 3ns and the pulse can not be greater than 1/3 of the cycle rate.
VIL undershoot: VIL = -1.5V for a pulse width 3ns and the pulse can not be greater than 1/3 of the cycle rate.
Units
V
V
V
V
Notes
1
1
INPUT/OUTPUT CAPACITANCE
TA = 25°C, f = 100MHz
Parameter
Symbol
Input Capacitance (A0~A12, BA0~BA1, RAS#, CAS#, WE#)
Input Capacitance (CKE0, CKE1)
Input Capacitance (CS0#, CS1#)
Input Capacitance CK, CK0#, CK1, CK1#)
Input Capacitance (DM0 ~ DM7), (DQS0 ~ DQS7)
Input Capacitance (DQ0 ~ DQ63)
CIN1
CIN2
CIN3
CIN4
CIN5
COUT1
Min
20
12
12
12
12
12
Max Units
28 pF
16 pF
16 pF
16 pF
14 pF
14 pF
www.DataSheet4U.com
White Electronic Designs Corp. reserves the right to change products or specications without notice.
June 2006
Rev. 0
5 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

5 Page





WV3EG6437S-D4 arduino
White Electronic Designs
Document Title
256MB – 32Mx64, DDR SDRAM UNBUFFERED
DRAM DIE OPTIONS:
SAMSUNG: H-Die (K4H561638H-UCB3) RoHS
MICRON: T26A: F-Die
Revision History
Rev #
Rev 0
History
Created
WV3EG6437S-D4
ADVANCED
Release Date Status
June 2006
Advanced
www.DataSheet4U.com
White Electronic Designs Corp. reserves the right to change products or specications without notice.
June 2006
Rev. 0
11 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

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