MT48LC16M8A2TG-7ELIT View Datasheet(PDF) - Micron Technology

Part Name

Description

Manufacturer

MT48LC16M8A2TG-7ELIT

SYNCHRONOUS DRAM

Micron Technology 

TABLE OF CONTENTS

Functional Block Diagram – 32 Meg x 4 ................ 5

Functional Block Diagram – 16 Meg x 8 ................ 6

Functional Block Diagram – 8 Meg x 16 ................ 7

Pin Descriptions ..................................................... 8

Functional Description ......................................... 9

Initialization ...................................................... 9

Register Definition ............................................ 9

mode register ................................................ 9

Burst Length ............................................ 9

Burst Type ............................................... 10

CAS Latency ............................................ 11

Operating Mode ...................................... 11

Write Burst Mode .................................... 11

Commands ............................................................. 12

Truth Table 1 (Commands and DQM Operation) ............ 12

Command Inhibit ............................................. 13

No Operation (NOP) .......................................... 13

Load mode register ............................................ 13

Active ................................................................ 13

Read ................................................................ 13

Write ................................................................ 13

Precharge ........................................................... 13

Auto Precharge .................................................. 13

Burst Terminate ................................................. 13

Auto Refresh ...................................................... 14

Self Refresh ........................................................ 14

Operation ................................................................ 15

Bank/Row Activation ........................................ 15

Reads ................................................................ 16

Writes ................................................................ 22

Precharge ........................................................... 24

Power-Down ...................................................... 24

Clock Suspend ................................................... 25

Burst Read/Single Write .................................... 25

128Mb: x4, x8, x16

SDRAM

Concurrent Auto Precharge .............................. 26

Truth Table 2 (CKE) ................................................ 28

Truth Table 3 (Current State, Same Bank) ..................... 29

Truth Table 4 (Current State, Different Bank) ................. 31

Absolute Maximum Ratings ................................... 33

DC Electrical Characteristics

and Operating Conditions ................................... 33

IDD Specifications and Conditions ......................... 33

Capacitance ............................................................ 34

AC Electrical Characteristics and Recommended

Operating Conditions (Timing Table) ............. 34

Timing Waveforms

Initialize and Load mode register ...................... 37

Power-Down Mode ............................................ 38

Clock Suspend Mode ......................................... 39

Auto Refresh Mode ............................................ 40

Self Refresh Mode .............................................. 41

Reads

Read – Without Auto Precharge ................... 42

Read – With Auto Precharge ........................ 43

Single Read – Without Auto Precharge ........ 44

Single Read – With Auto Precharge ............. 45

Alternating Bank Read Accesses ................... 46

Read – Full-Page Burst .................................. 47

Read – DQM Operation ................................ 48

Writes

Write – Without Auto Precharge ................. 49

Write – With Auto Precharge ....................... 50

Single Write – Without Auto Precharge ....... 51

Single Write – With Auto Precharge ............ 52

Alternating Bank Write Accesses ................. 53

Write – Full-Page Burst ................................. 54

Write – DQM Operation .............................. 55

128Mb: x4, x8, x16 SDRAM

128MSDRAM_E.p65 – Rev. E; Pub. 1/02

4

Micron Technology, Inc., reserves the right to change products or specifications without notice.

©2001, Micron Technology, Inc.

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