25Q32DWIG View Datasheet(PDF) - Winbond

Part Name

Description

View to exact match

25Q32DWIG

1.8V 32M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI

Winbond 

W25Q32DW

10.2 INSTRUCTIONS

The Standard/Dual/Quad SPI instruction set of the W25Q32DW consists of thirty six basic instructions

that are fully controlled through the SPI bus (see Instruction Set table1-3). Instructions are initiated with

the falling edge of Chip Select (/CS). The first byte of data clocked into the DI input provides the

instruction code. Data on the DI input is sampled on the rising edge of clock with most significant bit

(MSB) first.

The QPI instruction set of the W25Q32DW consists of twenty four basic instructions that are fully

controlled through the SPI bus (see Instruction Set table 4). Instructions are initiated with the falling edge

of Chip Select (/CS). The first byte of data clocked through IO[3:0] pins provides the instruction code. Data

on all four IO pins are sampled on the rising edge of clock with most significant bit (MSB) first. All QPI

instructions, addresses, data and dummy bytes are using all four IO pins to transfer every byte of data with

every two serial clocks (CLK).

Instructions vary in length from a single byte to several bytes and may be followed by address bytes, data

bytes, dummy bytes (don’t care), and in some cases, a combination. Instructions are completed with the

rising edge of edge /CS. Clock relative timing diagrams for each instruction are included in figures 5

through 42. All read instructions can be completed after any clocked bit. However, all instructions that

Write, Program or Erase must complete on a byte boundary (/CS driven high after a full 8-bits have been

clocked) otherwise the instruction will be ignored. This feature further protects the device from inadvertent

writes. Additionally, while the memory is being programmed or erased, or when the Status Register is

being written, all instructions except for Read Status Register will be ignored until the program or erase

cycle has completed.

10.2.1 Manufacturer and Device Identification

MANUFACTURER ID

(MF7 - MF0)

Winbond Serial Flash

EFh

Device ID

Instruction

W25Q32DW

(ID7 - ID0)

ABh, 90h, 92h, 94h

15h

(ID15 - ID0)

9Fh

6016h

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