UPD4564323 - 64M-bit Synchronous DRAM 4-bank/ LVTTL

NEC

Datasheet Details

The µPD4564323 is a high-speed 67,108,864-bit synchronous dynamic random-access memory, organized as 524,288 words × 32 bits × 4 banks.

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).
×32 organization.
Byte control by DQM0, DQM1, DQM2 and DQM3.
Programmable Wrap sequence (Sequential / Interleave).
Programmable burst length (1, 2, 4, 8 and full page).
Programmable /CAS latency (2.

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