S25FS256S datasheet(134/154 Pages) SPANSION

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S25FS-S Family

S25FS-S_00_04 November 6, 2013

Data

Sheet

(Pre limin ar y)

11. Embedded Algorithm Performance Tables

The Joint Electron Device Engineering Council (JEDEC) standard JESD22-A117 defines the procedural

requirements for performing valid endurance and retention tests based on a qualification specification. This

methodology is intended to determine the ability of a flash device to sustain repeated data changes without

failure (program/erase endurance) and to retain data for the expected life (data retention). Endurance and

retention qualification specifications are specified in JESD47 or may be developed using knowledge-based

methods as in JESD94.

Notes:

1. Not 100% tested.

2. Typical program and erase times assume the following conditions: 25°C, VDD = 1.8V; random data pattern.

3. The programming time for any OTP programming command is the same as tPP. This includes OTPP 42h, PNVDLR 43h, ASPP 2Fh, and

PASSP E8h.

4. The programming time for the PPBP E3h command is the same as tPP. The erase time for PPBE E4h command is the same as tSE.

5. Data retention of 20 years is based on 1k erase cycles or less.

Table 11.1 Program and Erase Performance

Symbol

Parameter

Min

Typ (2)

Max

Unit

Non-Volatile Register Write Time

145

750

tPP

Page Programming (512 bytes)

Page Programming (256 bytes)

475

360

1080

µs

tSE

Sector Erase Time (64-kB or 4-kB physical sectors)

145

725

Sector Erase Time (256-kB logical sectors = 4x64K physical sectors)

580

2900

tBE (1)

Bulk Erase Time (S25FS128S)

180

sec

tBE (1)

Bulk Erase Time (S25FS256S)

360

sec

tEES

Evaluate Erase Status Time (64-kB or 4-kB physical sectors)

µs

Evaluate Erase Status Time (256-kB physical or logical sectors)

100

Erase per sector

100,000

cycles

Table 11.2 Program or Erase Suspend AC Parameters

Parameter

Typical

Max

Unit

Comments

Suspend Latency (tSL)

µs

The time from Suspend command until the WIP

bit is 0.

Resume to next Program Suspend (tRS)

100

µs

Minimum is the time needed to issue the next

Suspend command but

≥ typical periods are

needed for Program or Erase to progress to

completion.

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