W25X16, W25X16A, W25X32, W25X64

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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.

PAD CONFIGURATION WSON 6X5-MM & 8X6-MM ................................................................ 5

6.

PIN CONFIGURATION PDIP 300-MIL ....................................................................................... 6

7.

PIN DESCRIPTION SOIC 150 / 208-MIL, PDIP 300-MIL, WSON 6X5 / 8X6-MM ..................... 6

8.

PIN CONFIGURATION SOIC 300-MIL....................................................................................... 7

9.

PIN DESCRIPTION SOIC 300-MIL ............................................................................................ 7

9.1

Package Types ............................................................................................................... 8

9.2

Chip Select (/CS) ............................................................................................................ 8

9.3

Serial Data Output (DO) ................................................................................................. 8

9.4

Write Protect (/WP) ......................................................................................................... 8

9.5

HOLD (/HOLD) ............................................................................................................... 8

9.6

Serial Clock (CLK) .......................................................................................................... 8

9.7

Serial Data Input / Output (DIO) ..................................................................................... 8

10.

BLOCK DIAGRAM ...................................................................................................................... 9

11.

FUNCTIONAL DESCRIPTION ................................................................................................. 10

11.1

SPI OPERATIONS ....................................................................................................... 10

11.1.1

SPI Modes ....................................................................................................................10

11.1.2

Dual Output SPI............................................................................................................10

11.1.3

Hold Function ...............................................................................................................10

11.2

WRITE PROTECTION.................................................................................................. 11

11.2.1

Write Protect Features..................................................................................................11

12.

CONTROL AND STATUS REGISTERS................................................................................... 12

12.1

STATUS REGISTER .................................................................................................... 12

12.1.1

BUSY............................................................................................................................12

12.1.2

Write Enable Latch (WEL) ............................................................................................12

12.1.3

Block Protect Bits (BP2, BP1, BP0)..............................................................................12

12.1.4

Top/Bottom Block Protect (TB) .....................................................................................12

12.1.5

Reserved Bits ...............................................................................................................12

12.1.6

Status Register Protect (SRP) ......................................................................................13

12.1.7

Status Register Memory Protection ..............................................................................14

12.2

INSTRUCTIONS........................................................................................................... 16

12.2.1

Manufacturer and Device Identification.........................................................................16