W25Q20BW
9.6 AC Electrical Characteristics
SPEC
TYP
DESCRIPTION
SYMBOL
ALT
UNIT
MIN
D.C.
D.C.
6
MAX
80
Clock frequency for all instructions
except for Read Data (03h)
FR
fC
MHz
MHz
ns
Clock frequency for Read Data instruction (03h)
fR
50
Clock High, Low Time
for all instructions except Read Data (03h)
tCLH1,
(1)
tCLL1
Clock High, Low Time
for Read Data (03h) instruction
tCRLH,
tCRLL
8
ns
(1)
(2)
Clock Rise Time peak to peak
tCLCH
0.1
0.1
5
V/ns
V/ns
ns
(2)
Clock Fall Time peak to peak
tCHCL
/CS Active Setup Time relative to CLK
/CS Not Active Hold Time relative to CLK
Data In Setup Time
tSLCH
tCHSL
tDVCH
tCHDX
tCHSH
tSHCH
tSHSL1
tSHSL2
tCSS
5
ns
tDSU
tDH
2
ns
Data In Hold Time
5
ns
/CS Active Hold Time relative to CLK
/CS Not Active Setup Time relative to CLK
/CS Deselect Time (for Array Read Æ Array Read)
5
ns
5
ns
tCSH
tCSH
10
50
ns
/CS Deselect Time (for Erase or Program Æ Read
ns
Status Registers and Volatile Status Register Write)
(2)
Output Disable Time
tSHQZ
tDIS
tV1
7
7
ns
ns
ns
ns
ns
Clock Low to Output Valid
tCLQV1
tCLQV2
tCLQX
tHLCH
Clock Low to Output Valid (for Read ID instructions)
Output Hold Time
tV2
7.5
tHO
0
5
/HOLD Active Setup Time relative to CLK
Continued – next page
Publication Release Date: January 25, 2011
Preliminary - Revision B
- 61 -
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