W25X40CL Datasheet, PDF (2/53 Pages) Winbond – 2.5/3/3.3 V 4M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL I/O SPI

W25X40CL
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
Publication Release Date: October 15, 2012
-2-
Revision E