N25Q256A11ESF40F Datasheet, PDF (2/87 Pages) Micron Technology – Micron Serial NOR Flash Memory

1.8V, 256Mb: Multiple I/O Serial Flash Memory
Features
Contents
Device Description ........................................................................................................................................... 6
Features ....................................................................................................................................................... 6
3-Byte Address and 4-Byte Address Modes ..................................................................................................... 6
Operating Protocols ...................................................................................................................................... 6
XIP Mode ..................................................................................................................................................... 6
Device Configurability .................................................................................................................................. 7
Signal Assignments ........................................................................................................................................... 8
Signal Descriptions ......................................................................................................................................... 10
Memory Organization .................................................................................................................................... 12
Memory Configuration and Block Diagram .................................................................................................. 12
Memory Map – 256Mb Density ....................................................................................................................... 13
Device Protection ........................................................................................................................................... 14
Serial Peripheral Interface Modes .................................................................................................................... 17
SPI Protocols .................................................................................................................................................. 19
Nonvolatile and Volatile Registers ................................................................................................................... 20
Status Register ............................................................................................................................................ 21
Nonvolatile and Volatile Configuration Registers .......................................................................................... 22
Enhanced Volatile Configuration Register .................................................................................................... 24
Flag Status Register ..................................................................................................................................... 25
Command Definitions .................................................................................................................................... 27
READ REGISTER and WRITE REGISTER Operations ........................................................................................ 30
READ STATUS REGISTER or FLAG STATUS REGISTER Command ................................................................ 30
READ NONVOLATILE CONFIGURATION REGISTER Command ................................................................... 30
READ VOLATILE or ENHANCED VOLATILE CONFIGURATION REGISTER Command .................................. 31
READ EXTENDED ADDRESS REGISTER Command ..................................................................................... 31
WRITE STATUS REGISTER Command ......................................................................................................... 31
WRITE NONVOLATILE CONFIGURATION REGISTER Command ................................................................. 32
WRITE VOLATILE or ENHANCED VOLATILE CONFIGURATION REGISTER Command ................................. 32
WRITE EXTENDED ADDRESS REGISTER Command ................................................................................... 33
READ LOCK REGISTER Command .............................................................................................................. 33
WRITE LOCK REGISTER Command ............................................................................................................ 34
CLEAR FLAG STATUS REGISTER Command ................................................................................................ 35
READ IDENTIFICATION Operations ............................................................................................................... 36
READ ID and MULTIPLE I/O READ ID Commands ...................................................................................... 36
READ SERIAL FLASH DISCOVERY PARAMETER Command ......................................................................... 37
READ MEMORY Operations ............................................................................................................................ 41
3-Byte Address ........................................................................................................................................... 41
4-Byte Address ........................................................................................................................................... 43
READ MEMORY Operations Timing – Single Transfer Rate ........................................................................... 44
READ MEMORY Operations Timing – Double Transfer Rate ......................................................................... 47
PROGRAM Operations .................................................................................................................................... 50
WRITE Operations .......................................................................................................................................... 55
WRITE ENABLE Command ......................................................................................................................... 55
WRITE DISABLE Command ........................................................................................................................ 55
ERASE Operations .......................................................................................................................................... 57
SUBSECTOR ERASE Command ................................................................................................................... 57
SECTOR ERASE Command ......................................................................................................................... 57
BULK ERASE Command ............................................................................................................................. 58
PROGRAM/ERASE SUSPEND Command ..................................................................................................... 59
PROGRAM/ERASE RESUME Command ...................................................................................................... 61
PDF: 09005aef846a804a
n25q_256mb_1_8V_65nm.pdf - Rev. G 2/2012 EN
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