W25Q32FWTBIQ View Datasheet(PDF) - Winbond

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W25Q32FWTBIQ

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

Winbond 

W25Q32FW

8.2.22 Release Power-down / Device ID (ABh)

The Release from Power-down / Device ID instruction is a multi-purpose instruction. It can be used to

release the device from the power-down state, or obtain the devices electronic identification (ID) number.

To release the device from the power-down state, the instruction is issued by driving the /CS pin low, shifting

the instruction code “ABh” and driving /CS high as shown in Figure 38a & 38b. Release from power-down

will take the time duration of tRES1 (See AC Characteristics) before the device will resume normal operation

and other instructions are accepted. The /CS pin must remain high during the tRES1 time duration.

When used only to obtain the Device ID while not in the power-down state, the instruction is initiated by

driving the /CS pin low and shifting the instruction code “ABh” followed by 3-dummy bytes. The Device ID

bits are then shifted out on the falling edge of CLK with most significant bit (MSB) first. The Device ID value

for the W25Q32FW is listed in Manufacturer and Device Identification table. The Device ID can be read

continuously. The instruction is completed by driving /CS high.

When used to release the device from the power-down state and obtain the Device ID, the instruction is the

same as previously described, and shown in Figure 38c & 38d, except that after /CS is driven high it must

remain high for a time duration of tRES2 (See AC Characteristics). After this time duration the device will

resume normal operation and other instructions will be accepted. If the Release from Power-down / Device

ID instruction is issued while an Erase, Program or Write cycle is in process (when BUSY equals 1) the

instruction is ignored and will not have any effects on the current cycle.

/CS

CLK

Mode 3

Mode 0

DI

(IO0)

01234567

Instruction (ABh)

tRES1

Mode 3

Mode 0

Power-down current Stand-by current

Figure 38a. Release Power-down Instruction (SPI Mode)

/CS

CLK

IO0

Mode 3

Mode 0

01

Instruction

ABh

IO1

IO2

IO3

tRES1

Mode 3

Mode 0

Power-down current

Stand-by current

- 54 -

Publication Release Date: July 01, 2016

- Revision H

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