1.8V Uniform Sector Dual and Quad Serial Flash GD25LQ40C/20C/10C/05C GD25LQ40C/20C/10C/05C DATASHEET 1 1.8V Uniform Sector Dual and Quad Serial Flash GD25LQ40C/20C/10C/05C Contents 1 FEATURES ......................................................................................................................................................... 4 2 GENERAL DESCRIPTION ................................................................................................................................ 5 3 MEMORY ORGANIZATION ............................................................................................................................... 7 4 DEVICE OPERATION ...................................................................................................................................... 10 5 DATA PROTECTION ........................................................................................................................................ 11 6 STATUS REGISTER......................................................................................................................................... 16 7 COMMANDS DESCRIPTION .......................................................................................................................... 18 7.1 WRITE ENABLE (WREN) (06H) ................................................................................................................................ 22 7.2 WRITE DISABLE (WRDI) (04H) ................................................................................................................................ 22 7.3 WRITE ENABLE FOR VOLATILE STATUS REGISTER (50H) ................................................................................................. 22 7.4 READ STATUS REGISTER (RDSR) (05H OR 35H) .......................................................................................................... 23 7.5 WRITE STATUS REGISTER (WRSR) (01H) ................................................................................................................... 23 7.6 READ DATA BYTES (READ) (03H) ............................................................................................................................. 24 7.7 READ DATA BYTES AT HIGHER SPEED (FAST READ) (0BH) .............................................................................................. 24 7.8 DUAL OUTPUT FAST READ (3BH) .............................................................................................................................. 25 7.9 QUAD OUTPUT FAST READ (6BH) ............................................................................................................................. 26 7.10 DUAL I/O FAST READ (BBH) .................................................................................................................................... 26 7.11 QUAD I/O FAST READ (EBH) ................................................................................................................................... 28 7.12 SET BURST WITH WRAP (77H) ................................................................................................................................. 29 7.13 PAGE PROGRAM (PP) (02H) .................................................................................................................................... 30 7.14 QUAD PAGE PROGRAM (32H) .................................................................................................................................. 31 7.15 SECTOR ERASE (SE) (20H) ....................................................................................................................................... 32 7.16 32KB BLOCK ERASE (BE) (52H) ............................................................................................................................... 32 7.17 64KB BLOCK ERASE (BE) (D8H) ............................................................................................................................... 32 7.18 CHIP ERASE (CE) (60/C7H) ..................................................................................................................................... 33 7.19 ENABLE/DISABLE SO TO OUTPUT RY/BY (ESRY/DSRY) (70H/80H) ........................................................................... 33 7.20 DEEP POWER-DOWN (DP) (B9H) ............................................................................................................................. 34 7.21 RELEASE FROM DEEP POWER-DOWN AND READ DEVICE ID (RDI) (ABH) ......................................................................... 35 7.22 READ MANUFACTURE ID/ DEVICE ID (REMS) (90H) .................................................................................................... 36 7.23 READ MANUFACTURE ID/ DEVICE ID DUAL I/O (92H) ................................................................................................. 37 7.24 READ MANUFACTURE ID/ DEVICE ID QUAD I/O (94H)................................................................................................. 38 7.25 READ IDENTIFICATION (RDID) (9FH) ......................................................................................................................... 39 7.26 READ UNIQUE ID (4BH) .......................................................................................................................................... 40 7.27 PROGRAM/ERASE SUSPEND (PES) (75H) ................................................................................................................... 40 7.28 PROGRAM/ERASE RESUME (PER) (7AH) ................................................................................................................... 41 7.29 ERASE SECURITY REGISTERS (44H) ............................................................................................................................ 41 7.30 PROGRAM SECURITY REGISTERS (42H) ....................................................................................................................... 42 7.31 READ SECURITY REGISTERS (48H) ............................................................................................................................. 42 7.32 ENABLE RESET (66H) AND RESET (99H) ..................................................................................................................... 43 2