S25FL256SDPMFVC03 View Datasheet(PDF) - Cypress Semiconductor

Part Name

Description

Manufacturer

S25FL256SDPMFVC03

128 Mbit (16 Mbyte), 256 Mbit (32 Mbyte) 3.0V SPI Flash Memory

Cypress Semiconductor 

S25FL128S, S25FL256S

9.1.7

OTP, Block Protection, and Advanced Sector Protection

There are commands to read and program a separate One TIme Programmable (OTP) array for permanent data such as a serial

number. There are commands to control a contiguous group (block) of flash memory array sectors that are protected from program

and erase operations. There are commands to control which individual flash memory array sectors are protected from program and

erase operations.

9.1.8

Reset

There is a command to reset to the default conditions present after power on to the device. There is a command to reset (exit from)

the Enhanced Performance Read Modes.

9.1.9

Reserved

Some instructions are reserved for future use. In this generation of the S25FL128S and S25FL256S some of these command

instructions may be unused and not affect device operation, some may have undefined results.

Some commands are reserved to ensure that a legacy or alternate source device command is allowed without affect. This allows

legacy software to issue some commands that are not relevant for the current generation S25FL128S and S25FL256S devices with

the assurance these commands do not cause some unexpected action.

Some commands are reserved for use in special versions of the FL-S not addressed by this document or for a future generation.

This allows new host memory controller designs to plan the flexibility to issue these command instructions. The command format is

defined if known at the time this document revision is published.

Document Number: 001-98283 Rev. *I

Page 69 of 144

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