Document Number: 002-00833 Rev. *L
Page 2 of 74
S29VS256R
S29VS128R
S29XS256R
S29XS128R
Contents
Ordering Information ............................................................ 3
Valid Combinations ................................................................. 3
Input/Output Descriptions and Logic Symbol ................... 4
Block Diagram ...................................................................... 5
Physical Dimensions/Connection Diagrams ..................... 6
Product Overview ................................................................. 8
Address Space Maps ........................................................... 9
Data Address and Quantity Nomenclature ........................... 10
Flash Memory Array ............................................................. 11
Address/Data Interface ......................................................... 13
Bus Operations ..................................................................... 14
Device ID and CFI (ID-CFI) .................................................. 15
Device Operations .............................................................. 17
Asynchronous Read ............................................................. 17
Synchronous (Burst) Read Mode
and Configuration Register .......................................... 18
Status Register ..................................................................... 25
Blank Check ......................................................................... 29
Simultaneous Read/Write ..................................................... 29
Writing Commands/Command Sequences .......................... 30
Program/Erase Operations ................................................... 30
Handshaking ......................................................................... 37
Hardware Reset .................................................................... 37
Software Reset ..................................................................... 37
Sector Protection/Unprotection ........................................ 39
Power Conservation Modes ...............................................42
Electrical Specifications .....................................................43
Absolute Maximum Ratings ...................................................43
Operating Ranges .................................................................44
DC Characteristics .................................................................44
Capacitance ...........................................................................45
AC Test Conditions ................................................................46
Key to Switching Waveforms .................................................46
V
CC
Power-Up and Power Down ...........................................47
CLK Characterization ............................................................48
AC Characteristics .................................................................49
Appendix ..............................................................................57
Command Definitions ............................................................57
Device ID and Common Flash Memory Interface
Address Map .................................................................59
Revision History ..................................................................72
Document History Page ......................................................72
Sales, Solutions, and Legal Information ...........................75
