W25Q80BWSVIP datasheet(54/74 Pages) WINBOND

No. de pieza	W25Q80BWSVIP

Descripción Electrónicos	1.8V 8M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI

PDF	74 Pages

Scroll/Zoom	100%

Fabricante Electrónico	WINBOND [Winbond]

Página de inicio	http://www.winbond.com

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54 / 74 page

W25Q80BW

- 54 -

7.2.35

Read JEDEC ID (9Fh)

For compatibility reasons, the W25Q80BW provides several instructions to electronically determine the

identity of the device. The Read JEDEC ID instruction is compatible with the JEDEC standard for SPI

compatible serial memories that was adopted in 2003. The instruction is initiated by driving the /CS pin

low and shifting the instruction code “9Fh”. The JEDEC assigned Manufacturer ID byte for Winbond (EFh)

and two Device ID bytes, Memory Type (ID15-ID8) and Capacity (ID7-ID0) are then shifted out on the

falling edge of CLK with most significant bit (MSB) first as shown in figure 33. For memory type and

capacity values refer to Manufacturer and Device Identification table.

/CS

CLK

(IO

Mode 0

Mode 3

Instruction (9Fh)

High Impedance

Capacity ID7-0

/CS

CLK

(IO

Manufacturer ID (EFh)

Mode 0

Mode 3

Memory Type ID15-8

= MSB

Figure 33. Read JEDEC ID Instruction Sequence

W25Q80BWSVIP Datasheet(PDF) 54 Page - Winbond