m95256-dr STMicroelectronics, m95256-dr Datasheet - Page 37

• 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 20.
1. Current products are identified by process letters “AB”.
2. New products are identified by process letter K. For these new products, the test flow guarantees the AC parameter values
3. t
4. 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
defined in this table (when V
5.0 V). The M95256-DR is available as only "new product" type.
CH
t
f
W
C
(3)
(3)
+ t
(4)
(4)
(4)
(4)
(4)
(4)
CL
must never be less than the shortest possible clock period, 1 / f
t
t
t
t
f
t
CSS1
CSS2
t
Alt.
t
t
SCK
t
CSH
t
DSU
t
t
t
t
CLH
t
t
CLL
t
AC characteristics (M95256-DR, M95256-R device grade 6)
DIS
WC
HO
RO
CS
RC
DH
t
FO
FC
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
CC
Test conditions: V
= 1.8 V) and the AC parameter values defined in
Parameter
Doc ID 12276 Rev 11
CC
= 1.8 to 5.5 V, T
C
A
Min.
D.C.
(max)
200
200
200
200
200
200
200
140
50
90
40
0
0
0
= –40 to 85 °C
Current
products
Table 18
Max.
(1)
250
150
100
100
100
250
2
1
1
5
(when V
DC and AC parameters
Min.
D.C.
(Preliminary
information)
CC
products
60
60
90
60
60
80
80
20
20
60
60
0
0
0
= 2.5 V or V
N
ew
Max.
80
80
20
20
80
80
(2)
5
2
2
5
CC
=
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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