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W25X40AL Dataheets PDF



Part Number W25X40AL
Manufacturers Winbond
Logo Winbond
Description 2.5V SERIAL FLASH MEMORY
Datasheet W25X40AL DatasheetW25X40AL Datasheet (PDF)

W25X10AL, W25X20AL, W25X40AL, W25X80AL 1M-BIT, 2M-BIT, 4M-BIT AND 8M-BIT 2.5V SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI Publication Release Date: October 7 2009 -1- Revision D W25X10AL, W25X20AL, W25X40AL, W25X80AL Table of Contents 1. GENERAL DESCRIPTION. 4 2. FEATURES ...

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W25X10AL, W25X20AL, W25X40AL, W25X80AL 1M-BIT, 2M-BIT, 4M-BIT AND 8M-BIT 2.5V SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI Publication Release Date: October 7 2009 -1- Revision D W25X10AL, W25X20AL, W25X40AL, W25X80AL Table of Contents 1. GENERAL DESCRIPTION.......................................................................................................... 4 2. FEATURES ................................................................................................................................. 4 3. PIN CONFIGURATION SOIC 150-MIL ....................................................................................... 5 4. PIN CONFIGURATION SOIC 208-MIL ....................................................................................... 5 5. PIN CONFIGURATION PDIP 300-MIL ....................................................................................... 5 6. PAD CONFIGURATION WSON 6X5-MM................................................................................... 6 7. PIN DESCRIPTION..................................................................................................................... 6 7.1 Package Types ............................................................................................................... 7 7.2 Chip Select (/CS) ............................................................................................................ 7 7.3 Serial Data Output (DO).................................................................................................. 7 7.4 Write Protect (/WP)......................................................................................................... 7 7.5 HOLD (/HOLD)................................................................................................................ 7 7.6 Serial Clock (CLK) .......................................................................................................... 7 7.7 Serial Data Input / Output (DIO)...................................................................................... 7 8. BLOCK DIAGRAM ...................................................................................................................... 8 9. FUNCTIONAL DESCRIPTION.................................................................................................... 9 9.1 SPI OPERATIONS.......................................................................................................... 9 9.1.1 SPI Modes ........................................................................................................................9 9.1.2 Dual Output SPI ...............................................................................................................9 9.1.3 Hold Function ...................................................................................................................9 9.2 WRITE PROTECTION ................................................................................................. 10 9.2.1 Write Protect Features ...................................................................................................10 10. CONTROL AND STATUS REGISTERS ................................................................................... 11 10.1 STATUS REGISTER .................................................................................................... 11 10.1.1 BUSY............................................................................................................................11 10.1.2 Write Enable Latch (WEL) ...........................................................................................11 10.1.3 Block Protect Bits (BP2, BP1, BP0) .............................................................................11 10.1.4 Top/Bottom Block Protect (TB).....................................................................................11 10.1.5 Reserved Bits ...............................................................................................................11 10.1.6 Status Register Protect (SRP)......................................................................................12 10.1.7 Status Register Memory Protection..............................................................................13 10.2 INSTRUCTIONS ........................................................................................................... 14 10.2.1 Manufacturer and Device Identification ........................................................................14 10.2.2 Instruction Set ..............................................................................................................15 10.2.3 Write Enable (06h) .......................................................................................................16 10.2.4 Write Disable (04h) ......................................................................................................16 10.2.5 Read Status Register (05h)..................


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