IS25LD256C-JDLE View Datasheet(PDF) - Integrated Silicon Solution

Part Name

Description

MFG CO.

IS25LD256C-JDLE

256Kbit Single Operating Voltage Serial Flash Memory With 100 MHz Dual-Output SPI Bus Interface

Integrated Silicon Solution 

IS25LD256C

DEVICE OPERATION (CONTINUED)

WRITE ENABLE OPERATION

The Write Enable (WREN) instruction is used to set the erase, page program and write status register

Write Enable Latch (WEL) bit. The WEL bit of the

operations. The WEL bit will be reset to the write-

IS25LD256C is reset to the write –protected state after protect state automatically upon completion of a write

power-up. The WEL bit must be write enabled before operation. The WREN instruction is required before

any write operation, including sector, block erase, chip any above operation is executed.

Figure 6. Write Enable Sequence

SIO

WRDI COMMAND (WRITE DISABLE) OPERATION

The Write Disable (WRDI) instruction resets the WEL instruction is not required after the execution of a write

bit and disables all write instructions. The WRDI

instruction, since the WEL bit is automatically reset.

Figure 7. Write Disable Sequence

SIO

Integrated Silicon Solution, Inc.- www.issi.com

15

Rev. A

09/11/2012

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