28F128J3A, 28F640J3A, 28F320J3A
Contents
1.0
2.0
Product Overview.......................................................................................................1
Principles of Operation............................................................................................6
2.1
Data Protection......................................................................................................6
3.0
Bus Operations...........................................................................................................7
3.1
3.2
3.3
3.4
3.5
3.6
3.7
Read......................................................................................................................8
Output Disable.......................................................................................................8
Standby .................................................................................................................8
Reset/Power-Down ...............................................................................................8
Read Query...........................................................................................................9
Read Identifier Codes............................................................................................9
Write......................................................................................................................9
4.0
Command Definitions...............................................................................................9
4.1
4.2
Read Array Command.........................................................................................13
Read Query Mode Command .............................................................................13
4.2.1 Query Structure Output ..........................................................................13
4.2.2 Query Structure Overview......................................................................14
4.2.3 Block Status Register.............................................................................15
4.2.4 CFI Query Identification String ...............................................................15
4.2.5 System Interface Information .................................................................16
4.2.6 Device Geometry Definition....................................................................17
4.2.7 Primary-Vendor Specific Extended Query Table....................................18
Read Identifier Codes Command........................................................................19
Read Status Register Command.........................................................................20
Clear Status Register Command.........................................................................22
Block Erase Command........................................................................................22
Block Erase Suspend Command ........................................................................22
Write to Buffer Command....................................................................................23
Byte/Word Program Commands .........................................................................24
Program Suspend Command..............................................................................24
Set Read Configuration Command .....................................................................24
4.11.1 Read Configuration ................................................................................25
Configuration Command .....................................................................................25
Set Block Lock-Bit Commands............................................................................26
Clear Block Lock-Bits Command.........................................................................27
Protection Register Program Command .............................................................27
4.15.1 Reading the Protection Register ............................................................27
4.15.2 Programming the Protection Register ....................................................27
4.15.3 Locking the Protection Register .............................................................28
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15
5.0
Design Considerations ..........................................................................................38
5.1
5.2
5.3
5.4
Three-Line Output Control...................................................................................38
STS and Block Erase, Program, and Lock-Bit Configuration Polling ..................38
Power Supply Decoupling ...................................................................................38
Input Signal Transitions - Reducing Overshoots and Undershoots When Using
Preliminary
iii
INTEL [ INTEL ]
