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W3H32M72E-667ES Datasheet(PDF) 1 Page - White Electronic Designs Corporation |
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W3H32M72E-667ES Datasheet(HTML) 1 Page - White Electronic Designs Corporation |
1 / 30 page W3H32M72E-XSBX PRELIMINARY* 1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs February 2006 Rev. 2 White Electronic Designs Corp. reserves the right to change products or specifications without notice. 32M x 72 DDR2 SDRAM 208 PBGA Multi-Chip Package FEATURES Data rate = 667*, 533, 400 Package: • 208 Plastic Ball Grid Array (PBGA), 18 x 20mm • 1.0mm pitch Differential data strobe (DQS, DQS#) per byte Internal, pipelined, double data rate architecture 4-bit prefetch architecture DLL for alignment of DQ and DQS transitions with clock signal Four internal banks for concurrent operation (Per DDR2 SDRAM Die) Programmable Burst lengths: 4 or 8 Auto Refresh and Self Refresh Modes On Die Termination (ODT) Adjustable data – output drive strength Single 1.8V ±0.1V supply Programmable CAS latency: 3, 4, 5, or 6 Posted CAS additive latency: 0, 1, 2, 3 or 4 Write latency = Read latency - 1* tCK Commercial, Industrial and Military Temperature Ranges Organized as 32M x 72 Weight: W3H32M72E-XSBX - 2.5 grams typical BENEFITS 65% SPACE SAVINGS vs. FPBGA Reduced part count 54% I/O reduction vs FPBGA Reduced trace lengths for lower parasitic capacitance Suitable for hi-reliability applications Upgradable to 64M x 72 density (contact factory for information) * This product is under development, is not qualified or characterized and is subject to change without notice. Area 5 x 209mm2 = 1,045mm2 360mm2 65% 5 x 90 balls = 450 balls 208 Balls 54% S A V I N G S I/O Count Actual Size W3H32M72E-XSBX CSP Approach (mm) 90 FBGA 11.0 19.0 20 18 90 FBGA 11.0 90 FBGA 11.0 90 FBGA 11.0 90 FBGA 11.0 FIGURE 1 – DENSITY COMPARISONS White Electronic Designs W3H32M72E-XSBX |
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