25Q16 View Datasheet(PDF) - Winbond

Part Name

Description

Manufacturer

25Q16

8M-BIT, 16M-BIT AND 32M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI

Winbond 

W25Q80, W25Q16, W25Q32

10.2.8 Read Data (03h)

The Read Data instruction allows one 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 8. 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).

Figure 8. Read Data Instruction Sequence Diagram

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