GD25R256D datasheet(2/82 Pages) GIGADEVICE

2 / 82 page

3.3V Uniform Sector

Dual and Quad Serial Flash

GD25R256D

Contents

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

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

MEMORY ORGANIZATION .................................................................................................................................... 8

DEVICE OPERATION .............................................................................................................................................. 9

DATA PROTECTION.............................................................................................................................................. 10

STATUS AND EXTENDED ADDRESS REGISTERS ....................................................................................... 11

6.1.

STATUS REGISTERS ............................................................................................................................................ 11

6.2.

EXTENDED ADDRESS REGISTER ......................................................................................................................... 15

COMMANDS DESCRIPTION ............................................................................................................................... 16

7.1.

WRITE ENABLE (WREN) (06H) ......................................................................................................................... 21

7.2.

WRITE DISABLE (WRDI) (04H) ......................................................................................................................... 21

7.3.

WRITE ENABLE FOR VOLATILE STATUS REGISTER (50H) .................................................................................. 21

7.4.

READ STATUS REGISTER (RDSR) (05H OR 35H OR 15H) .................................................................................. 22

7.5.

WRITE STATUS REGISTER (WRSR) (01H OR 31H OR 11H)................................................................................ 22

7.6.

READ EXTENDED REGISTER (C8H) .................................................................................................................... 23

7.7.

WRITE EXTENDED REGISTER (C5H)................................................................................................................... 23

7.8.

READ DATA BYTES (READ 03H OR 4READ 13H) ............................................................................................ 24

7.9.

READ DATA BYTES AT HIGHER SPEED (FAST READ 0BH OR 4FAST READ 0CH)............................................... 25

7.10.

DUAL OUTPUT FAST READ (DOFR 3BH OR 4DOFR 3CH)................................................................................ 26

7.11.

QUAD OUTPUT FAST READ (QOFR 6BH OR 4QOFR 6CH) ............................................................................... 28

7.12.

DUAL I/O FAST READ (DIOFR BBH OR 4DIOFR BCH) ................................................................................... 30

7.13.

QUAD I/O FAST READ (QIOFR EBH OR 4QIOFR ECH) ................................................................................... 34

7.14.

SET BURST WITH WRAP (77H) ........................................................................................................................... 37

7.15.

PAGE PROGRAM (PP 02H OR 4PP 12H).............................................................................................................. 38

7.16.

QUAD PAGE PROGRAM (QPP 32H OR 4QPP 34H).............................................................................................. 40

7.17.

SECTOR ERASE (SE 20H OR 4SE 21H) ............................................................................................................... 43

7.18.

32KB BLOCK ERASE (BE32 52H OR 4BE32 5CH)............................................................................................. 44

7.19.

64KB BLOCK ERASE (BE64 D8H OR 4BE64 DCH)........................................................................................... 45

7.20.

CHIP ERASE (CE) (60/C7H) ............................................................................................................................... 46

7.21.

DEEP POWER-DOWN (DP) (B9H) ....................................................................................................................... 47

7.22.

READ UNIQUE ID (4BH) .................................................................................................................................... 48

7.23.

ENTER 4-BYTE ADDRESS MODE (B7H).............................................................................................................. 49

7.24.

EXIT 4-BYTE ADDRESS MODE (E9H) ................................................................................................................. 49

7.25.

CLEAR SR FLAGS (30H)..................................................................................................................................... 50

7.26.

RELEASE FROM DEEP POWER-DOWN AND READ DEVICE ID (RDI) (ABH)........................................................ 50

7.27.

READ MANUFACTURE ID/ DEVICE ID (REMS) (90H)........................................................................................ 51

7.28.

READ MANUFACTURE ID/ DEVICE ID DUAL I/O (92H)...................................................................................... 52

7.29.

READ MANUFACTURE ID/ DEVICE ID QUAD I/O (94H) ..................................................................................... 53

7.30.

READ IDENTIFICATION (RDID) (9FH)................................................................................................................ 54

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