S25FS256S datasheet(15/154 Pages) SPANSION

15 / 154 page

November 6, 2013 S25FS-S_00_04

S25FS-S Family

Da ta

Shee t

(Prelim i nar y )

2.2.2.7

Other Legacy Commands Not Supported

 Autoboot Related Commands

 Bank Address Related Commands

 Dual Output Read

 Quad Output Read

 Quad Page Program (QPP) - replaced by Page Program in QPI Mode

 DDR Fast Read

 DDR Dual I/O Read

2.2.2.8

New Features

The FS-S family introduces new features to Spansion SPI category memories:

 Single 1.8V power supply for core and I/O voltage.

 Configurable initial read latency (number of dummy cycles) for faster initial access time or higher clock rate

read commands

 Quad Peripheral Interface (QPI, 4-4-4) read mode in which all transfers are 4 bits wide, including

instructions

 JEDEC JESD216 standard, Serial Flash Discoverable Parameters (SFDP) that provide device feature and

configuration information.

 Evaluate Erase Status command to determine if the last erase operation on a sector completed

successfully. This command can be used to detect incomplete erase due to power loss or other causes.

This command can be helpful to Flash File System software in file system recovery after a power loss.

 Advanced Sector Protection (ASP) Permanent Protection. A bit is added to the ASP register to provide the

option to make protection of the Persistent Protection Bits (PPB) permanent. Also, when one of the two

ASP protection modes is selected, all OTP configuration bits in all registers are protected from further

programming so that all OTP configuration settings are made permanent. The OTP address space is not

protected by the selection of an ASP protection mode. The Freeze bit (CR1V[0]) may be used to protect the

OTP Address Space.

S25FS256S Datasheet(PDF) 15 Page - SPANSION