m95256 STMicroelectronics, m95256 Datasheet - Page 32

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

DC and AC parameters
32/43
Table 18.
1. t
2. Value guaranteed by characterization, not 100% tested in production.
t
t
t
Symbol
t
t
t
SHQZ
QLQH
QHQL
CLCH
CHCL
HLQZ
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CH
SHCH
CHSH
CL
DVCH
CHDX
HHCH
HHQV
SLCH
SHSL
CHSL
HLCH
CLHH
CLQV
CLQX
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
t
t
t
t
f
CSS1
CSS2
t
AC characteristics (M95256-W, device grade 3)
t
Alt.
t
t
t
t
SCK
t
CSH
t
t
DSU
t
t
t
CLH
CLL
t
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
M95256, M95256-W, M95256-R
C
Table 8
(max)
Min.
D.C.
100
90
90
90
90
90
90
20
30
70
40
0
0
0
Max.
100
100
60
50
50
50
5
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