Datasheet 3
Contents
Contents
1.0 Introduction....................................................................................................................................7
1.1 Document Purpose ...............................................................................................................7
1.2 Nomenclature .......................................................................................................................7
1.3 Conventions..........................................................................................................................7
2.0 Device Description ........................................................................................................................8
2.1 Product Overview .................................................................................................................8
2.2 Ballout Diagram ....................................................................................................................8
2.3 Signal Descriptions .............................................................................................................13
2.4 Block Diagram ....................................................................................................................14
2.5 Memory Map.......................................................................................................................15
3.0 Device Operations .......................................................................................................................17
3.1 Bus Operations ...................................................................................................................17
3.1.1 Read ......................................................................................................................17
3.1.2 Write ......................................................................................................................17
3.1.3 Output Disable .......................................................................................................17
3.1.4 Standby..................................................................................................................18
3.1.5 Reset .....................................................................................................................18
4.0 Modes of Operation.....................................................................................................................19
4.1 Read Mode .........................................................................................................................19
4.1.1 Read Array.............................................................................................................19
4.1.2 Read Identifier .......................................................................................................19
4.1.3 CFI Query ..............................................................................................................20
4.1.4 Read Status Register.............................................................................................20
4.1.4.1 Clear Status Register.............................................................................21
4.2 Program Mode ....................................................................................................................21
4.2.1 12-Volt Production Programming...........................................................................21
4.2.2 Suspending and Resuming Program .....................................................................22
4.3 Erase Mode ........................................................................................................................22
4.3.1 Suspending and Resuming Erase .........................................................................23
5.0 Security Modes ............................................................................................................................27
5.1 Flexible Block Locking ........................................................................................................27
5.1.1 Locking Operation..................................................................................................28
5.1.1.1 Locked State ..........................................................................................28
5.1.1.2 Unlocked State.......................................................................................28
5.1.1.3 Lock-Down State....................................................................................28
5.2 Reading Block-Lock Status.................................................................................................28
5.3 Locking Operations during Erase Suspend ........................................................................29
5.4 Status Register Error Checking ..........................................................................................29
5.5 128-Bit Protection Register.................................................................................................29
5.5.1 Reading the Protection Register............................................................................30
5.5.2 Programming the Protection Register....................................................................30
5.5.3 Locking the Protection Register.............................................................................30
5.6 V
PP
Program and Erase Voltages ......................................................................................30