25X10AVIG データシートの表示（PDF） - Winbond

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25X10AVIG

1M-BIT, 2M-BIT, 4M-BIT AND 8M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI

Winbond 

W25X10A, W25X20A, W25X40A, W25X80A

10.2.16 Read Manufacturer / Device ID (90h)

The Read Manufacturer/Device ID instruction is an alternative to the Release from Power-down/

Device ID instruction that provides both JEDEC assigned manufacturer ID and the specific device ID.

The Read Manufacturer/Device ID instruction is very similar to the Release from Power-down / Device

ID instruction. The instruction is initiated by driving the /CS pin low and shifting the instruction code

“90h” followed by a 24-bit address (A23-A0) of 000000h. After which, the Manufacturer ID for Winbond

(EFh) and the Device ID are shifted out on the falling edge of CLK with most significant bit (MSB) first

as shown in figure 18. The Device ID values for the W25X10A, W25X20A, W25X40A and W25X80A

are listed in Manufacturer and Device Identification table. If the 24-bit address is initially set to

000001h the Device ID will be read first and then followed by the Manufacturer ID. The Manufacturer

and Device IDs can be read continuously, alternating from one to the other. The instruction is

completed by driving /CS high.

Figure 18. Read Manufacturer / Device ID Diagram

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Publication Release Date: August 7, 2009

Revision F

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