GD25Q21 datasheet(32/49 Pages) ELM

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GD25Q21 Datasheet(PDF) 32 Page - ELM Electronics

Part #	GD25Q21

Description	Uniform Sector Dual and Quad Serial Flash

PDF	49 Pages

Scroll/Zoom	100%

Manufacturer	ELM [ELM Electronics]

Direct Link	http://www.elmelectronics.com

Logo

32 / 49 page

Rev.1.1

49 -

http://www.elm-tech.com

GD25Q21BxIGx Uniform Sector Dual and Quad Serial Flash

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

The Read Manufacturer/Device ID command is an alternative to the Release from Power-Down/Device ID

command that provides both the JEDEC assigned Manufacturer ID and the specific Device ID.

The command is initiated by driving the CS# pin low and shifting the command code “90H” followed by a

24-bit address (A23-A0) of 000000H. After which, the Manufacturer ID and the Device ID are shifted out on

the falling edge of SCLK with most significant bit (MSB) first as shown in Figure28. If the 24-bit address is

initially set to 000001H, the Device ID will be read first.

Figure 28. Read Manufacture ID/Device ID Sequence Diagram

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