Contents
Contents
1.0 Introduction....................................................................................................................................7
1.1
1.2
1.3
1.4
Document Conventions ........................................................................................................7
Product Overview .................................................................................................................7
Package Ballout....................................................................................................................8
Signal Definitions ..................................................................................................................9
2.0 Principles of Operation ...............................................................................................................11
2.1
Bus Operation.....................................................................................................................11
2.1.1 Read ......................................................................................................................11
2.1.2 Output Disable .......................................................................................................12
2.1.3 Standby..................................................................................................................12
2.1.4 Flash Reset............................................................................................................13
2.1.5 Write ......................................................................................................................13
3.0 Flash Memory Modes of Operation............................................................................................13
3.1
3.2
3.3
Read Array (FFh)................................................................................................................13
Read Identifier (90h) ...........................................................................................................13
Read Status Register (70h) ................................................................................................14
3.3.1 Clear Status Register (50h) ...................................................................................14
CFI Query (98h)..................................................................................................................15
Word Program (40h/10h) ....................................................................................................15
3.5.1 Suspending and Resuming Program (B0h/D0h)....................................................15
Block Erase (20h) ...............................................................................................................16
3.6.1 Suspending and Resuming Erase (B0h/D0h)........................................................16
Block Locking......................................................................................................................18
3.7.1 Block Locking Operation Summary........................................................................19
3.7.2 Locked State..........................................................................................................19
3.7.3 Unlocked State ......................................................................................................19
3.7.4 Lock-Down State ...................................................................................................19
3.7.5 Reading a Block’s Lock Status ..............................................................................20
3.7.6 Locking Operation during Erase Suspend .............................................................20
3.7.7 Status Register Error Checking .............................................................................20
128 Bit Protection Register .................................................................................................21
3.8.1 Reading the Protection Register............................................................................21
3.8.2 Programming the Protection Register (C0h)..........................................................21
3.8.3 Locking the Protection Register.............................................................................22
3.4
3.5
3.6
3.7
3.8
4.0 Power and Reset Considerations ..............................................................................................23
4.1
4.2
Power-Up/Down Characteristics.........................................................................................23
Additional Flash Features ...................................................................................................23
4.2.1 Improved 12 Volt Production Programming...........................................................23
4.2.2 F-VPP < VPPLK for Complete Protection..............................................................23
5.0 Electrical Specifications .............................................................................................................24
5.1
5.2
5.3
Absolute Maximum Ratings ................................................................................................24
Operating Conditions ..........................................................................................................25
Capacitance........................................................................................................................25
Datasheet
3
INTEL [ INTEL ]
