W25B40 Datasheet, PDF (30/36 Pages) Winbond – 4M-BIT SERIAL FLASH MEMORY WITH BOOT AND PARAMETER SECTORS

W25B40/W25B40A
9.6 AC Electrical Characteristics (Preliminary)
DESCRIPTION
SYMBOL
Clock frequency, for Fast Read (0Bh) and all FR
other instructions except Read Data (03h)
2.7V-3.6V VCC
3.0V-3.6V VCC
Clock freq. Read Data instruction (03h)
2.7V-3.6V VCC
3.0V-3.6V VCC (for sequential read only) *
Clock High, Low Time, for Fast Read (0Bh) and
all other instructions except Read Data (03h)
Clock High, Low Time for Read Data instruction
Clock Rise Time peak to peak
Clock Fall Time peak to peak
/CS Active Setup Time relative to CLK
/CS Not Active Hold Time relative to CLK
Data In Setup Time
Data In Hold Time
/CS Active Hold Time relative to CLK
(2.7V-3.6V / 3.0V-3.6V)
/CS Not Active Setup Time relative to CLK
/CS Deselect Time
Output Disable Time
Clock Low to Output Valid
(2.7V-3.6V / 3.0V-3.6V)
Output Hold Time
/HOLD Active Setup Time relative to CLK
(2.7V-3.6V / 3.0V-3.6V)
fR
tCLH,
tCLL⁽¹⁾
tCRLH,
tCRLL⁽¹⁾
tCLCH⁽²⁾
tCHCL⁽²⁾
tSLCH
tCHSL
tDVCH
tCHDX
tCHSH
tSHCH
tSHSL
tSHQZ⁽²⁾
tCLQV
tCLQX
tHLCH
ALT
fC
tCSS
tDSU
tDH
tCSH
tDIS
tV
tHO
SPEC
MIN TYP MAX
D.C.
33
D.C.
40
D.C.
25
D.C.
33
11
11
0.1
0.1
5
5
2
5
7/5
5
100
9
12/9
0
6/5
UNIT
MHz
MHz
MHz
MHz
ns
ns
V/ns
V/ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
* Sequential read uses autoincrement address, not random addressing.
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