W25X64BVSFIG WINBOND [Winbond], W25X64BVSFIG Datasheet - Page 30

• Manufacturer Part Number: W25X64BVSFIG
• Description: 64M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI
• Manufacturer: WINBOND [Winbond]

W25X64BV
10.2.18 JEDEC ID (9Fh)
For compatibility reasons, the W25X64BV 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 20. For memory type and capacity values refer to Manufacturer and
Device Identification table.
Figure 20. Read JEDEC ID
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