EDS6432AFTA.SDRAM 64Mb.Datasheet

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The EDS6432AFTA, EDS6432CFTA are 64M bits SDRAMs organized as 524,288 words × 32 bits × 4 banks. All inputs and outputs are synchronized with the positive edge of the clock.Supply voltages are 3.3V (EDS6432AFTA) and 2.5V (EDS6432CFTA).It is packaged in 86-pin plastic TSOP (II).

• 3.3V and 2.5V power supply
• Clock frequency: 166MHz/133MHz (max.)
• Single pulsed /RAS
• ×32 organization
• 4 banks can operate simultaneously and independently
• Burst read/write operation and burst read/single write operation capability
• 2 variations of burst sequence
 Sequential (BL = 1, 2, 4, 8, full page)
 Interleave (BL = 1, 2, 4, 8)
• Programmable /CAS latency (CL): 2, 3
• Byte control by DQM
• Refresh cycles: 4096 refresh cycles/64ms
• 2 variations of refresh
 Auto refresh
 Self refresh