GD25Q21 datasheet(44/49 Pages) ELM

44 / 49 page

Rev.1.1

49 -

http://www.elm-tech.com

GD25Q21BxIGx Uniform Sector Dual and Quad Serial Flash

8.8. AC Characteristics

Symbol

Parameter

Min.

Typ.

Max.

Unit.

Serial Clock Frequency For: FAST_READ, PP, SE, BE, DP,

RES, WREN, WRDI, WRSR, RDSR, RDID (*1,*2,*4 I/O)

DC.

104

MHz

Serial Clock Frequency For: Read

DC.

MHz

tCLH Serial Clock High Time

3.5

tCLL Serial Clock Low Time

3.5

tCLCH Serial Clock Rise Time (Slew Rate)

0.2

V/ns

tCHCL Serial Clock Fall Time (Slew Rate)

0.2

V/ns

tSLCH CS# Active Setup Time

tCHSH CS# Active Hold Time

tSHCH CS# Not Active Setup Time

tCHSL CS# Not Active Hold Time

tSHSL CS# High Time (Read/Write)

tSHQZ Output Disable Time

tCLQX Output Hold Time

1.2

tDVCH Data In Setup Time

tCHDX Data In Hold Time

tHLCH Hold# Low Setup Time (Relative to Clock)

3.5

tHHCH Hold# High Setup Time (Relative to Clock)

3.5

tCHHL Hold# High Hold Time (Relative to Clock)

3.5

tCHHH Hold# Low Hold Time (Relative to Clock)

3.5

tHLQZ Hold# Low To High-Z Output

tHHQX Hold# Low To Low-Z Output

tCLQV Clock Low To Output Valid

tWHSL Write Protect Setup Time Before CS# Low

tSHWL Write Protect Hold Time After CS# High

100

tDP

CS# High To Deep Power-Down Mode

0.1

μs

tRES1 CS# High To Standby Mode Without Electronic Signature Read

μs

tRES2 CS# High To Standby Mode With Electronic Signature Read

μs

tHPM CS# High To High Performance Mode

0.2

μs

tSUS CS# High To Next Command After Suspend

μs

Write Status Register Cycle Time

tPP

Page Programming Time

0.35

2.4

tSE

Sector Erase Time

200/400(1) ms

tBE

Block Erase Time(32K/64K)

0.18/0.25

0.6/0.8

tCE

Chip Erase Time

0.8

1.5

(T= -40°C~85°C, VCC=2.7~3.6V, CL=30pf)

Note:

(1). Max Value tSE with <50K cycles is 200 ms and >50K & <100K cycles is 400 ms.

GD25Q21 Datasheet(PDF) 44 Page - ELM Electronics

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