W25X05CL/10CL/20CL

Publication Release Date: March 23, 2012

- 2 -

Revision B

Table of Contents

1.

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

2.

FEATURES.............................................................................................................................4

3.

PIN CONFIGURATION SOIC 150-MIL, VSOP 150-MIL, TSSOP 173-MIL ...............................5

4.

PAD CONFIGURATION WSON 6X5-MM AND USON 2X3-MM...............................................5

5.

PIN DESCRIPTION SOIC 150-MIL, VSOP 150-MM AND USON 2X3-MM...............................5

5.1

Package Types ...........................................................................................................6

5.2

Chip Select (/CS) ........................................................................................................6

5.3

Serial Data Input, Output and IOs (DIO, DO, IO0 and IO1)...........................................6

5.4

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

5.5

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

5.6

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

6.

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

7.

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

7.1

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

7.1.1

Standard SPI Instructions.................................................................................................8

7.1.2

Dual SPI Instructions ........................................................................................................8

7.1.3

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

7.2

WRITE PROTECTION ................................................................................................9

7.2.1

Write Protect Features......................................................................................................9

8.

CONTROL AND STATUS REGISTERS ................................................................................10

8.1

STATUS REGISTER.................................................................................................10

8.1.1

BUSY..............................................................................................................................10

8.1.2

Write Enable Latch (WEL)..............................................................................................10

8.1.3

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

8.1.4

Top/Bottom Block Protect (TB) .......................................................................................10

8.1.5

Reserved Bits .................................................................................................................11

8.1.6

Status Register Protect (SRP)........................................................................................11

8.1.7

Status Register Memory Protection................................................................................12

8.2

INSTRUCTIONS .......................................................................................................13

8.2.1

Manufacturer and Device Identification ..........................................................................13

8.2.2

Instruction Set ................................................................................................................14

8.2.3

Write Enable (06h)..........................................................................................................15

8.2.4

Write Enable for Volatile Status Register (50h) ..............................................................15

8.2.5

Write Disable (04h).........................................................................................................16

8.2.6

Read Status Register (05h) ............................................................................................16

8.2.7

Write Status Register (01h) ............................................................................................17

8.2.8

Read Data (03h).............................................................................................................18

8.2.9

Fast Read (0Bh) .............................................................................................................19

8.2.10

Fast Read Dual Output (3Bh) .......................................................................................20

8.2.11

Fast Read Dual I/O (BBh).............................................................................................21

8.2.12

Continuous Read Mode Bits (M7-0) .............................................................................23

8.2.13

Continuous Read Mode Reset (FFFFh) .......................................................................23

8.2.14

Page Program (02h).....................................................................................................24

8.2.15

Sector Erase (20h) .......................................................................................................25