m95256-dr STMicroelectronics, m95256-dr Datasheet - Page 35

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

M95256-DR, M95256, M95256-W, M95256-R
Table 18.
1. t
2. Value guaranteed by characterization, not tested in production.
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
C
SLCH
SHCH
SHSL
CHSH
CHSL
CH
CL
CLCH
CHCL
DVCH
CHDX
HHCH
HLCH
CLHL
CLHH
SHQZ
CLQV
CLQX
QLQH
QHQL
HHQV
HLQZ
W
Symbol
CH
(1)
(1)
(2)
(2)
(2)
(2)
(2)
(2)
+ t
CL
must never be less than the shortest possible clock period, 1 / f
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Test conditions: V
SCK
CSS1
CSS2
CS
CSH
CLH
CLL
RC
FC
DSU
DH
DIS
V
HO
RO
FO
LZ
HZ
WC
AC characteristics, new M95256-W, device grade 6
Alt.
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
T
A
= -40 to 85 °C
CC
= 2.5 to 5.5 V,
Parameter
Doc ID 12276 Rev 11
C
Min.
D.C.
100
90
90
90
90
90
90
20
30
70
40
L
0
0
0
= 100 pF
C
(max)
Max.
100
100
60
50
50
50
5
1
1
5
New products (process K,
Min.
D.C.
preliminary information)
30
30
40
30
30
45
45
10
10
30
30
0
0
0
Max.
C
10
40
40
40
40
40
40
DC and AC parameters
2
2
5
L
= 30 pF
Min.
D.C.
15
15
20
15
15
20
20
10
15
15
5
0
0
0
Max.
20
20
20
20
20
20
20
2
2
5
MHz
Unit
35/48
ms
ns
ns
ns
ns
ns
ns
ns
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns