UPD4564841 - 64M-bit Synchronous DRAM

Product Overview

NEC

UPD4564841 64M-bit Synchronous DRAM by NEC - Datasheet Preview — Datasheet preview – UPD4564841

Datasheet Details

Part number	UPD4564841
Manufacturer	NEC
File Size	657.15 KB
Description	64M-bit Synchronous DRAM
Datasheet	UPD4564841 Datasheet
Note	This datasheet PDF includes multiple part numbers: UPD4564841, UPD4564441. Please refer to the document for exact specifications by model.
Additional preview pages of the UPD4564841 datasheet.

Product details

Description

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.

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 UDQM.
Programmable Wrap sequence (Sequential / Interleave).
Programmable burst length (1, 2, 4, 8 and full page).
Programmable /CAS latency (2 and 3).
Automatic prech.

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Other Datasheets by NEC

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Published: Jul 8, 2015 |