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W25Q32FWTBIQ View Datasheet(PDF) - Winbond

Part NameDescriptionManufacturer
W25Q32FWTBIQ 1.8V 32M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI Winbond
Winbond Winbond
W25Q32FWTBIQ Datasheet PDF : 94 Pages
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W25Q32FW
8.2.6 Read Data (03h)
The Read Data instruction allows one or more data bytes to be sequentially read from the memory. The
instruction is initiated by driving the /CS pin low and then shifting the instruction code “03h” followed by a
24-bit address (A23-A0) into the DI pin. The code and address bits are latched on the rising edge of the
CLK pin. After the address is received, the data byte of the addressed memory location will be shifted out
on the DO pin at the falling edge of CLK with most significant bit (MSB) first. The address is automatically
incremented to the next higher address after each byte of data is shifted out allowing for a continuous
stream of data. This means that the entire memory can be accessed with a single instruction as long as the
clock continues. The instruction is completed by driving /CS high.
The Read Data instruction sequence is shown in Figure 14. If a Read Data instruction is issued while an
Erase, Program or Write cycle is in process (BUSY=1) the instruction is ignored and will not have any
effects on the current cycle. The Read Data instruction allows clock rates from D.C. to a maximum of fR
(see AC Electrical Characteristics).
The Read Data (03h) instruction is only supported in Standard SPI mode.
/CS
CLK
DI
(IO0)
DO
(IO1)
Mode 3
0
Mode 0
* = MSB
1 2 3 4 5 6 7 8 9 10
28 29 30 31 32 33 34 35 36 37 38 39
Instruction (03h)
24-Bit Address
23 22 21
*
High Impedance
3210
Data Out 1
765432107
*
Figure 14. Read Data Instruction (SPI Mode only)
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Publication Release Date: July 01, 2016
- Revision H
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