m95256 STMicroelectronics, m95256 Datasheet - Page 33

• Manufacturer Part Number: m95256
• Description: 256 Kbit Serial Spi Bus Eeprom With High Speed Clock
• Manufacturer: STMicroelectronics

M95256, M95256-W, M95256-R
Table 19.
1. t
2. Value guaranteed by characterization, not 100% tested in production.
t
t
t
t
t
Symbol
t
QLQH
QHQL
CLCH
CHCL
SHQZ
HLQZ
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CH
HHCH
HHQV
SHCH
CHSH
CL
DVCH
CHDX
HLCH
CLHH
CLQV
CLQX
SLCH
SHSL
CHSL
CLHL
CH
t
f
W
C
(1)
(1)
+ t
(2)
(2)
(2)
(2)
(2)
(2)
CL
must never be less than the shortest possible clock period, 1 / f
AC characteristics (M95256-R)
t
t
f
t
t
CSS1
CSS2
t
t
Alt.
t
t
t
t
t
t
SCK
t
CSH
CLH
t
DSU
t
t
t
CLL
DIS
WC
RC
DH
HO
RO
CS
FC
t
FO
HZ
LZ
V
Clock frequency
S active setup time
S not active setup time
S deselect time
S active hold time
S not active hold time
Clock high time
Clock low time
Clock rise time
Clock fall time
Data in setup time
Data in hold time
Clock low hold time after HOLD not active
Clock low hold time after HOLD active
Clock low setup time before HOLD active
Clock low setup time before HOLD not active
Output disable time
Clock low to output valid
Output hold time
Output rise time
Output fall time
HOLD high to output valid
HOLD low to output High-Z
Write time
Test conditions specified in
Parameter
Table 10
and
C
Table 9
(max)
Min.
D.C.
200
200
200
200
200
200
200
140
40
50
90
DC and AC parameters
0
0
0
Max.
250
150
100
100
100
250
2
1
1
5
MHz
Unit
ms
ns
ns
ns
ns
ns
ns
ns
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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