Description The EDS2516APTA is a 256M bits SDRAM organized as 4194304 words × 16 bits × 4 banks. All inputs and outputs are referred to the rising edge of the clock input. It is packaged in 54-pin plastic TSOP (II). Features • 3.3V power supply • Clock frequency: 133MHz (max.) • LVTTL interface • Single pulsed /RAS • ×16 organization • 4 banks can operate simultaneously and independently • Burst read/write operation and burst read/single write operation capability • Programmable burst length (BL): 1, 2, 4, 8, full page • 2 variations of burst sequence - Sequential (BL = 1, 2, 4, 8) - Interleave (BL = 1, 2, 4, 8) • Programmable /CAS latency (CL): 2, 3 • Byte control by UDQM and LDQM • Refresh cycles: 8192 refresh cycles/64ms • 2 variations of refresh - Auto refresh - Self refresh • TSOP (II) package with lead free solder (Sn-Bi) • Wide temperature range - Ambient temperature range: –40 to +85°C
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