GD25Q21 datasheet(2/49 Pages) ELM

2 / 49 page

Rev.1.1

49 -

http://www.elm-tech.com

GD25Q21BxIGx Uniform Sector Dual and Quad Serial Flash

- Content -

Page

1. FEATURES

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2. GENERAL DESCRIPTION

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3. MEMORY ORGANIZATION

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4. DEVICE OPERATION

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5. DATA PROTECTION

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6. STATUS REGISTER

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7. COMMANDS DESCRIPTION

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Table of ID Definition

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7.1. Write Enable (WREN) (06H)

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7.2. Write Disable (WRDI) (04H)

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7.3. Write Enable for Volatile Status Register (50H)

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7.4. Read Status Register (RDSR) (05H or 35H)

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7.5. Write Status Register (WRSR) (01H)

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7.6. Write Status Register (WRSR) (31H)

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7.7. Read Data Bytes (READ) (03H)

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7.8. Read Data Bytes at Higher Speed (Fast Read) (0BH)

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7.9. Dual Output Fast Read (3BH)

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7.10. Quad Output Fast Read (6BH)

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7.11. Dual I/O Fast Read (BBH)

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7.12. Quad I/O Fast Read (EBH)

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7.13. Quad I/O Word Fast Read (E7H)

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7.14. Set Burst with Wrap (77H)

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7.15. Page Program (PP) (02H)

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7.16. Quad Page Program (32H)

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7.17. Sector Erase (SE) (20H)

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7.18. 32KB Block Erase (BE) (52H)

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7.19. 64KB Block Erase (BE) (D8H)

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7.20. Chip Erase (CE) (60/C7H)

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7.21. Deep Power-Down (DP) (B9H)

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7.22. Release from Deep Power-Down or High Performance Mode and Read Device ID (RDI) (ABH) 31

7.23. Read Manufacture ID/Device ID (REMS) (90H)

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7.24. Read Manufacture ID/Device ID Dual I/O (92H)

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7.25. Read Manufacture ID/Device ID Quad I/O (94H)

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7.26. Read Identification (RDID) (9FH)

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