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M95256_0807 Fiches technique(PDF) 33 Page - STMicroelectronics

No de pièce M95256_0807
Description  256 Kbit serial SPI bus EEPROM with high-speed clock
PDF  44 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M95256_0807 Fiches technique(HTML) 33 Page - STMicroelectronics

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M95256, M95256-W, M95256-R
DC and AC parameters
33/44
Table 19.
AC characteristics (M95256-R)
Test conditions specified in Table 10 and Table 9
Symbol
Alt.
Parameter
Min.
Max.
Unit
fC
fSCK
Clock frequency
D.C.
2
MHz
tSLCH
tCSS1
S active setup time
200
ns
tSHCH
tCSS2
S not active setup time
200
ns
tSHSL
tCS
S deselect time
200
ns
tCHSH
tCSH
S active hold time
200
ns
tCHSL
S not active hold time
200
ns
tCH
(1)
1.
tCH + tCL must never be less than the shortest possible clock period, 1 / fC(max)
tCLH
Clock high time
200
ns
tCL
(1)
tCLL
Clock low time
200
ns
tCLCH
(2)
2.
Value guaranteed by characterization, not 100% tested in production.
tRC
Clock rise time
1
µs
tCHCL
(2)
tFC
Clock fall time
1
µs
tDVCH
tDSU
Data in setup time
40
ns
tCHDX
tDH
Data in hold time
50
ns
tHHCH
Clock low hold time after HOLD not active
140
ns
tHLCH
Clock low hold time after HOLD active
90
ns
tCLHL
Clock low setup time before HOLD active
0
ns
tCLHH
Clock low setup time before HOLD not active
0
ns
tSHQZ
(2)
tDIS
Output disable time
250
ns
tCLQV
tV
Clock low to output valid
150
ns
tCLQX
tHO
Output hold time
0
ns
tQLQH
(2)
tRO
Output rise time
100
ns
tQHQL
(2)
tFO
Output fall time
100
ns
tHHQV
tLZ
HOLD high to output valid
100
ns
tHLQZ
(2)
tHZ
HOLD low to output High-Z
250
ns
tW
tWC
Write time
5
ms



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