Description
The EDS1232AA is a 128M bits SDRAM organized as 1,048,576 words × 32 bits × 4 banks. All inputs and outputs are synchronized with the positive edge of the clock.
They are packaged in 86-pin plastic TSOP (II).

FEATUREs
• 3.3V power supply
• Clock frequency: 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
• Programmable burst length (BL): 1, 2, 4, 8 and full page
• 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
• Ambient temperature range: –40 to +85°C