256Mb and 512Mb (256Mb/256Mb), P30-65nm
Features
Contents
Introduction .................................................................................................................................................... 9
Overview .......................................................................................................................................................... 9
Virtual Chip Enable Description ...................................................................................................................... 10
Memory Map ................................................................................................................................................. 12
Package Dimensions ....................................................................................................................................... 13
Pinouts and Ballouts ....................................................................................................................................... 17
Signals ........................................................................................................................................................... 20
Bus Operations ............................................................................................................................................... 23
Reads ......................................................................................................................................................... 23
Writes ........................................................................................................................................................ 23
Output Disable ........................................................................................................................................... 23
Standby ..................................................................................................................................................... 24
Reset .......................................................................................................................................................... 24
Device Command Codes ................................................................................................................................. 25
Device Command Bus Cycles .......................................................................................................................... 28
Read Operation .............................................................................................................................................. 30
Asynchronous Page-Mode Read .................................................................................................................. 30
Synchronous Burst-Mode Read ................................................................................................................... 30
Read Device Identifier ................................................................................................................................ 31
Read CFI .................................................................................................................................................... 31
Program Operation ......................................................................................................................................... 32
Word Programming .................................................................................................................................... 32
Buffered Programming ............................................................................................................................... 32
Buffered Enhanced Factory Programming ................................................................................................... 33
BEFP Requirements and Considerations .................................................................................................. 34
BEFP Setup Phase ................................................................................................................................... 34
BEFP Program/Verify Phase .................................................................................................................... 35
BEFP Exit Phase ..................................................................................................................................... 35
Program Suspend ....................................................................................................................................... 36
Program Resume ........................................................................................................................................ 36
Program Protection .................................................................................................................................... 37
Erase Operations ............................................................................................................................................ 38
Block Erase ................................................................................................................................................ 38
Blank Check ............................................................................................................................................... 38
Erase Suspend ............................................................................................................................................ 39
Erase Resume ............................................................................................................................................. 39
Erase Protection ......................................................................................................................................... 39
Security Modes ............................................................................................................................................... 40
Block Locking ............................................................................................................................................. 40
Lock Block ............................................................................................................................................. 40
Unlock Block .......................................................................................................................................... 40
Lock-Down Block ................................................................................................................................... 40
Block Lock Status ................................................................................................................................... 41
Block Locking During Suspend ............................................................................................................... 41
Selectable One-Time Programmable Blocks ................................................................................................. 42
Password Access ......................................................................................................................................... 42
Registers ........................................................................................................................................................ 43
Read Status Register ................................................................................................................................... 43
Clear Status Register ............................................................................................................................... 44
Read Configuration Register ....................................................................................................................... 44
PDF: 09005aef84566799
p30_65nm_256Mb-512mb.pdf - Rev. A 1/13 EN
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