The µPD4564441, 4564841, 4564163 are high-speed 67,108,864-bit synchronous dynamic random-access memories, organized as 4,194,304 × 4 × 4, 2,097,152 × 8 × 4, 1,048,576 ×16 × 4 (word × bit × bank), respectively.
The synchronous DRAMs achieved high-speed data transfer using the pipeline architecture.
UPD4564441 Features
* 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 A12 and A13 (Bank Select)
* Byte control (×16) by LDQM and UD
Datasheet Details
UPD4564441, UPD4564841
Elpida Memory
919.99 KB
(upd4564841/441/163) 64m-bit sdram.
This datasheet PDF includes multiple part numbers: UPD4564441, UPD4564841.
Please refer to the document for exact specifications by model.
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