W3EG7235S-JD3 Datasheet, PDF (11/12 Pages) White Electronic Designs Corporation – 256MB - 2x16Mx72 DDR SDRAM REGISTERED ECC, w/PLL

White Electronic Designs
W3EG7235S-JD3
PRELIMINARY
ORDER INFORMATION FOR JD3
Part Number
Speed
CAS Latency
tRCD
W3EG7235S262JD3
133MHz/266Mbps
2
2
W3EG7235S265JD3
133MHz/266Mbps
2.5
3
W3EG7235S202JD3
100MHz/200Mbps
2
2
tRP
Height*
2
30.48 (1.20")
3
30.48 (1.20")
2
30.48 (1.20")
NOTES:
• Consult Factory for availability of RoHS compliant products. (G = RoHS Compliant)
• Vendor specific part numbers are used to provide memory components source control. The place holder for this is shown as lower case “x” in the part numbers above and is to
be replaced with the respective vendors code. Consult factory for qualified sourcing options. (M = Micron, S = Samsung & consult factory for others)
• Consult factory for availability of industrial temperature (-40°C to 85°C) option
PACKAGE DIMENSIONS FOR JD3
3.99
(0.157 (2x))
17.78
(0.700)
10.01
(0.394)
6.35
(0.250)
133.48
(5.255" MAX.)
131.34
(5.171")
128.95
(5.077")
64.77
(2.550)
6.35
(0.250)
1.78
(0.070)
4.06
(0.160 MAX)
1.27
49.53 ^{(0.050 TYP.)}
(1.950)
3.99
30.48
(0.157)
(1.20 MAX) _(MIN)
2.31
(0.091)
(2x)
3.00
(0.118)
(4x)
1.27 ± 0.10
(0.050 ± 0.004)
ALL DIMENSIONS ARE IN MILLIMETERS AND (INCHES)
November 2004
Rev. 2
11
White Electronic Designs Corporation • [phone] • www.wedc.com