EDS2508APSA-75 データシートの表示（PDF） - Elpida Memory, Inc

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EDS2508APSA-75

256M bits SDRAM

Elpida Memory, Inc 

EDS2508APSA, EDS2516APSA

CONTENTS

Description ..................................................................................................................................................... 1

Features.........................................................................................................................................................1

Pin Configurations .........................................................................................................................................1

Ordering Information......................................................................................................................................2

Part Number ..................................................................................................................................................2

Electrical Specifications.................................................................................................................................4

Block Diagram .............................................................................................................................................12

Pin Function.................................................................................................................................................13

Command Operation ...................................................................................................................................15

Simplified State Diagram .............................................................................................................................23

Mode Register Configuration.......................................................................................................................24

Power-up sequence.....................................................................................................................................25

Operation of the SDRAM.............................................................................................................................26

Timing Waveforms.......................................................................................................................................42

Package Drawing ........................................................................................................................................48

Recommended Soldering Conditions ..........................................................................................................49

Data Sheet E0228E30 (Ver. 3.0)

3

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