Description
The MC-4516CB646EF, MC-4516CB646PF and MC-4516CB646XF are 16,777,216 words by 64 bits synchronous dynamic RAM module on which 8 pieces of 128M SDRAM: µPD45128841 are assembled.
This module provides high density and large quantities of memory in a small space without utilizing the surface mounting technology on the printed circuit board.
Decoupling capacitors are mounted on power supply line for noise reduction.

FEATUREs
• 16,777,216 words by 64 bits organization
• Clock frequency and access time from CLK
• Fully Synchronous Dynamic RAM, with all signals referenced to a positive clock edge
• Pulsed interface
• Possible to assert random column address in every cycle
• Quad internal banks controlled by BA0 and BA1 (Bank Select)
• Programmable burst-length (1, 2, 4, 8 and full page)
• Programmable wrap sequence (sequential / interleave)
• Programmable /CAS latency (2, 3)
• Automatic precharge and controlled precharge
• CBR (Auto) refresh and self refresh
• All DQs have 10 Ω ±10 % of series resistor
• Single 3.3 V ± 0.3 V power supply