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PRELIMINARY DATA SHEET
256M bits SDRAM
EDS2532JEBH-6B (8M words × 32 bits)
Specifications
• Density: 256M bits • Organization ⎯ 2M words × 32 bits × 4 banks • Package: 90-ball FBGA ⎯ Lead-free (RoHS compliant) • Power supply: VDD, VDDQ = 2.5V ± 0.2V • Clock frequency: 166MHz (max.) • 2KB page size ⎯ Row address: A0 to A11 ⎯ Column address: A0 to A8 • Four internal banks for concurrent operation • Interface: LVCMOS • Burst lengths (BL): 1, 2, 4, 8, full page • Burst type (BT): ⎯ Sequential (1, 2, 4, 8, full page) ⎯ Interleave (1, 2, 4, 8) • /CAS Latency (CL): 2, 3 • Precharge: auto precharge operation for each burst access • Driver strength: half/quarter • Refresh: auto-refresh, self-refresh • Refresh cycles: 4096 cycles/64ms ⎯ Average refresh period: 15.