3.3V Uniform Sector

Dual and Quad Serial Flash

GD25B127D

2

Contents

1.

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

2.

GENERAL DESCRIPTION ..........................................................................................................................5

3.

MEMORY ORGANIZATION.........................................................................................................................7

4.

DEVICE OPERATION ..................................................................................................................................8

5.

DATA PROTECTION ...................................................................................................................................9

6.

STATUS REGISTER .................................................................................................................................. 11

7.

COMMANDS DESCRIPTION ....................................................................................................................13

7.1.

WRITE ENABLE (WREN) (06H) .............................................................................................................16

7.2.

WRITE DISABLE (WRDI) (04H)..............................................................................................................16

7.3.

WRITE ENABLE FOR VOLATILE STATUS REGISTER (50H) ........................................................................17

7.4.

READ STATUS REGISTER (RDSR) (05H OR 35H OR 15H) ......................................................................17

7.5.

WRITE STATUS REGISTER (WRSR) (01H OR 31H OR 11H)....................................................................18

7.6.

READ DATA BYTES (READ) (03H) ........................................................................................................18

7.7.

READ DATA BYTES AT HIGHER SPEED (FAST READ) (0BH).....................................................................19

7.8.

DUAL OUTPUT FAST READ (3BH) ..........................................................................................................19

7.9.

QUAD OUTPUT FAST READ (6BH) .........................................................................................................20

7.10.

DUAL I/O FAST READ (BBH) .................................................................................................................20

7.11.

QUAD I/O FAST READ (EBH).................................................................................................................22

7.12.

QUAD I/O WORD FAST READ (E7H) ......................................................................................................23

7.13.

SET BURST WITH WRAP (77H) ..............................................................................................................25

7.14.

PAGE PROGRAM (PP) (02H) .................................................................................................................26

7.15.

QUAD PAGE PROGRAM (32H)................................................................................................................27

7.16.

SECTOR ERASE (SE) (20H) ..................................................................................................................28

7.17.

32KB BLOCK ERASE (BE) (52H) ...........................................................................................................28

7.18.

64KB BLOCK ERASE (BE) (D8H) ..........................................................................................................29

7.19.

CHIP ERASE (CE) (60/C7H)..................................................................................................................29

7.20.

DEEP POWER-DOWN (DP) (B9H) ..........................................................................................................30

7.21.

RELEASE FROM DEEP POWER-DOWN AND READ DEVICE ID (RDI) (ABH) ...............................................31

7.22.

READ MANUFACTURE ID/ DEVICE ID (REMS) (90H) ..............................................................................32

7.23.

READ MANUFACTURE ID/ DEVICE ID DUAL I/O (92H) .............................................................................33

7.24.

READ MANUFACTURE ID/ DEVICE ID QUAD I/O (94H).............................................................................34

7.25.

READ IDENTIFICATION (RDID) (9FH) .....................................................................................................35

7.26.

PROGRAM/ERASE SUSPEND (PES) (75H)..............................................................................................36

7.27.

PROGRAM/ERASE RESUME (PER) (7AH)...............................................................................................36

7.28.

READ UNIQUE ID (4BH) ........................................................................................................................37

7.29.

ERASE SECURITY REGISTERS (44H)......................................................................................................37

7.30.

PROGRAM SECURITY REGISTERS (42H).................................................................................................38

7.31.

READ SECURITY REGISTERS (48H)........................................................................................................39

7.32.

ENABLE RESET (66H) AND RESET (99H) ...............................................................................................40