W25X40CL
Publication Release Date: October 15, 2012
- 2 - Revision E
Table of Contents
1. GENERAL DESCRIPTION ......................................................................................................... 4
2. FEATURES ................................................................................................................................. 4
3. PIN CONFIGURATION SOIC 208-MIL, SOIC 150-MIL AND VSOP 150-MIL ............................ 5
4. PAD CONFIGURATION WSON 6X5-MM AND USON 2X3-MM ................................................ 5
5. PIN CONFIGURATION PDIP 300-MIL ....................................................................................... 6
6. PIN DESCRIPTION SOIC, VSOP, WSON, USON AND PDIP ................................................... 6
6.1 Package Types ............................................................................................................... 7
6.2 Chip Select (/CS) ............................................................................................................ 7
6.3 Serial Data Input, Output and IOs (DI, DO, IO0 and IO1) .............................................. 7
6.4 Write Protect (/WP) ......................................................................................................... 7
6.5 HOLD (/HOLD)................................................................................................................ 7
6.6 Serial Clock (CLK) .......................................................................................................... 7
7. BLOCK DIAGRAM ...................................................................................................................... 8
7.1 SPI OPERATIONS ......................................................................................................... 9
7.1.1 Standard SPI Instructions ................................................................................................. 9
7.1.2 Dual SPI Instructions ........................................................................................................ 9
7.1.3 Hold Function ................................................................................................................... 9
7.2 WRITE PROTECTION .................................................................................................. 10
7.2.1 Write Protect Features .................................................................................................... 10
8. CONTROL AND STATUS REGISTERS ................................................................................... 11
8.1 STATUS REGISTER .................................................................................................... 11
8.1.1 BUSY .............................................................................................................................. 11
8.1.2 Write Enable Latch (WEL) .............................................................................................. 11
8.1.3 Block Protect Bits (BP2, BP1, BP0) ................................................................................ 11
8.1.4 Top/Bottom Block Protect (TB) ....................................................................................... 11
8.1.5 Reserved Bits ................................................................................................................. 12
8.1.6 Status Register Protect (SRP) ........................................................................................ 12
8.1.7 Status Register Memory Protection ................................................................................ 13
8.2 INSTRUCTIONS ........................................................................................................... 14
8.2.1 Manufacturer and Device Identification .......................................................................... 14
8.2.2 Instruction Set ............................................................................................................... 15
8.2.3 Write Enable (06h).......................................................................................................... 16
8.2.4 Write Enable for Volatile Status Register (50h) .............................................................. 16
8.2.5 Write Disable (04h) ......................................................................................................... 17
8.2.6 Read Status Register (05h) ............................................................................................ 17
8.2.7 Write Status Register (01h) ............................................................................................ 18
8.2.8 Read Data (03h) ............................................................................................................. 19
8.2.9 Fast Read (0Bh) ............................................................................................................. 20
8.2.10 Fast Read Dual Output (3Bh) ....................................................................................... 21
8.2.11 Fast Read Dual I/O (BBh) ............................................................................................. 22
8.2.12 Continuous Read Mode Bits (M7-0) ............................................................................. 24
8.2.13 Continuous Read Mode Reset (FFFFh) ....................................................................... 24
8.2.14 Page Program (02h) ..................................................................................................... 25
8.2.15 Sector Erase (20h) ....................................................................................................... 26
