3.3V Uniform Sector

Dual and Quad Serial Flash

GD25B16C

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.

READ STATUS REGISTER (RDSR) (05H OR 35H)...................................................................................16

7.4.

WRITE STATUS REGISTER (WRSR) (01H) .............................................................................................17

7.5.

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

7.6.

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

7.7.

READ DATA BYTES AT HIGHER SPEED (FAST READ) (0BH).....................................................................18

7.8.

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

7.9.

QUAD OUTPUT FAST READ (6BH) .........................................................................................................19

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.

PAGE PROGRAM (PP) (02H) .................................................................................................................24

7.14.

QUAD PAGE PROGRAM (32H)................................................................................................................25

7.15.

SECTOR ERASE (SE) (20H) ..................................................................................................................26

7.16.

32KB BLOCK ERASE (BE) (52H) ...........................................................................................................27

7.17.

64KB BLOCK ERASE (BE) (D8H) ..........................................................................................................27

7.18.

CHIP ERASE (CE) (60/C7H)..................................................................................................................28

7.19.

DEEP POWER-DOWN (DP) (B9H) ..........................................................................................................28

7.20.

RELEASE FROM DEEP POWER-DOWN OR HIGH PERFORMANCE MODE AND READ DEVICE ID (RDI) (ABH) 29

7.21.

READ MANUFACTURE ID/ DEVICE ID (REMS) (90H) ..............................................................................30

7.22.

READ IDENTIFICATION (RDID) (9FH) .....................................................................................................31

7.23.

HIGH PERFORMANCE MODE (HPM) (A3H).............................................................................................31

7.24.

CONTINUOUS READ MODE RESET (CRMR) (FFH) .................................................................................32

7.25.

READ UNIQUE ID (4BH) ........................................................................................................................33

7.26.

PROGRAM/ERASE SUSPEND (PES) (75H)..............................................................................................33

7.27.

PROGRAM/ERASE RESUME (PER) (7AH)...............................................................................................34

7.28.

ERASE SECURITY REGISTERS (44H)......................................................................................................34

7.29.

PROGRAM SECURITY REGISTERS (42H).................................................................................................35

7.30.

READ SECURITY REGISTERS (48H)........................................................................................................36

7.31.

ENABLE RESET (66H) AND RESET (99H) ...............................................................................................37

7.32.

READ SERIAL FLASH DISCOVERABLE PARAMETER (5AH)........................................................................37