W25P40-VSNIG View Datasheet(PDF) - Winbond

Part Name

Description

Manufacturer

W25P40-VSNIG

1M-BIT, 2M-BIT AND 4M-BIT SERIAL FLASH MEMORY WITH 40MHZ SPI

Winbond 

W25P10, W25P20 AND W25P40

Table of Contents-

1. GENERAL DESCRIPTION ......................................................................................................... 4

2. FEATURES ................................................................................................................................. 4

3. PIN CONFIGURATION ............................................................................................................... 5

4. PIN DESCRIPTION..................................................................................................................... 5

4.1 Package Types ............................................................................................................... 5

4.2 Chip Select (/CS) ............................................................................................................ 5

4.3 Serial Data Output (DO) ................................................................................................. 6

4.4 Write Protect (/WP)......................................................................................................... 6

4.5 HOLD (/HOLD) ............................................................................................................... 6

4.6 Serial Clock (CLK) .......................................................................................................... 6

4.7 Serial Data Input (DI) ...................................................................................................... 6

5. BLOCK DIAGRAM ...................................................................................................................... 7

6. FUNCTIONAL DESCRIPTION ................................................................................................... 8

6.1 SPI OPERATIONS ......................................................................................................... 8

6.1.1 SPI Modes........................................................................................................................8

6.1.2 Hold Function ...................................................................................................................8

6.2 WRITE PROTECTION.................................................................................................... 8

6.2.1 Write Protect Features......................................................................................................8

7. CONTROL AND STATUS REGISTERS..................................................................................... 9

7.1 STATUS REGISTER ...................................................................................................... 9

7.1.1 BUSY................................................................................................................................9

7.1.2 Write Enable Latch (WEL) ................................................................................................9

7.1.3 Block Protect Bits (BP2, BP1, BP0)................................................................................10

7.1.4 Reserved Bits .................................................................................................................10

7.1.5 Status Register Protect (SRP) ........................................................................................10

7.1.6 Status Register Memory Protection ................................................................................11

7.2 INSTRUCTIONS........................................................................................................... 11

7.2.1 Manufacturer and Device Identification...........................................................................12

7.2.2 Instruction Set (1).............................................................................................................12

7.2.3 Write Disable (04h).........................................................................................................13

7.2.4 Write Enable (06h)..........................................................................................................13

7.2.5 Read Status Register (05h) ............................................................................................14

7.2.6 Write Status Register (01h) ............................................................................................15

7.2.7 Read Data (03h) .............................................................................................................16

7.2.8 Fast Read (0Bh) .............................................................................................................17

7.2.9 Page Program (02h) .......................................................................................................18

7.2.10 Sector Erase (D8h).......................................................................................................19

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