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GD25Q21B

Part Number	GD25Q21B
Manufacturer	ELM
Description	Uniform Sector Dual and Quad Serial Flash
Published	Oct 1, 2016
Detailed Description	http://www.elm-tech.com GD25Q21B DATASHEET GD25Q21BxIGx Uniform Sector Dual and Quad Serial Flash http://www.elm-tech.c...
Datasheet	GD25Q21B PDF File

Overview

http://www.
elm-tech.
com GD25Q21B DATASHEET GD25Q21BxIGx Uniform Sector Dual and Quad Serial Flash http://www.
elm-tech.
com - Content - Page 1.
FEATURES ------------------------------------------------------------------------------------------------- 4 2.
GENERAL DESCRIPTION ----------------------------------------------------------------------------- 5 3.
MEMORY ORGANIZATION -------------------------------------------------------------------------- 6 4.
DEVICE OPERATION ---------------------------------------------------------------------------------- 6 5.
DATA PROTECTION ------------------------------------------------------------------------------------ 7 6.
STATUS REGISTER ------------------------------------------------------------------------------------- 9 7.
COMMANDS DESCRIPTION ------------------------------------------------------------------------- 10 Table of ID Definition --------------------------------------------------------------------------------------- 13 7.
1.
Write Enable (WREN) (06H) ----------------------------------------------------------------------- 14 7.
2.
Write Disable (WRDI) (04H) ----------------------------------------------------------------------- 14 7.
3.
Write Enable for Volatile Status Register (50H) -------------------------------------------------- 15 7.
4.
Read Status Register (RDSR) (05H or 35H) ----------------------------------------------------- 15 7.
5.
Write Status Register (WRSR) (01H) -------------------------------------------------------------- 16 7.
6.
Write Status Register (WRSR) (31H) ------------------------------------------------------------- 17 7.
7.
Read Data Bytes (READ) (03H) -------------------------------------------------------------------- 18 7.
8.
Read Data Bytes at Higher Speed (Fast Read) (0BH) ------------------------------------------- 18 7.
9.
Dual Output Fast Read (3BH) ---------------------------------------------------------------------- 19 7.
10.
Quad Output Fast Read (6BH) ---------...

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