EMD3D256M08BS1
EMD3D256M16BS1
TABLE OF CONTENTS
DDR3 DRAM COMPATIBILITY .............................................................................................................2
FUNCTIONAL DESCRIPTION ...............................................................................................................6
Basic Functionality ..........................................................................................................................6
Figure 1 – Simplified State Diagram STT-MRAM ............................................................................................... 7
Figure 2 – Block Diagram (32Mb x 8) STT-MRAM.............................................................................................. 8
Figure 3 – Block Diagram (16Mb x 16) STT-MRAM ........................................................................................... 8
Table 1 – Addressing Scheme by I/O Width........................................................................................................ 9
PACKAGE BALL ASSIGNMENTS ....................................................................................................... 10
Table 2 – 32Mb x 8 in 78-Ball BGA - Top View...................................................................................................10
Table 3 – 16Mb x 16 in 96-Ball BGA - Top View.................................................................................................11
BALL FUNCTIONS AND DESCRIPTIONS.......................................................................................... 12
Table 4 – Ball Functions and Descriptions.........................................................................................................12
ABSOLUTE MAXIMUM RATINGS...................................................................................................... 15
Table 5 – Absolute Maximum Ratings.................................................................................................................15
THERMAL CHARACTERISTICS.......................................................................................................... 16
Table 6 – Thermal Characteristics 78-ball BGA Package...............................................................................16
Table 7 – Thermal Characteristics 96-ball BGA Package...............................................................................16
DC CHARACTERISTICS...................................................................................................................... 17
Table 8 – Power Supply and Input Leakage.....................................................................................................17
Table 9 – Input / Output Capacitance .................................................................................................................18
Table 10 – IDD Maximum Limits ............................................................................................................................19
TIMING PARAMETERS ...................................................................................................................... 20
Table 11 – Timing Parameters................................................................................................................................20
TRUTH TABLES................................................................................................................................... 21
Command Truth Table.................................................................................................................. 21
EMD3D256M08BS1/16BS1 Revision 1.3 10/2018
Copyright © 2018 Everspin Technologies
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