Preliminary W24256
AC Characteristics, continued
(VDD = 5V 10%; VSS = 0V; TA = 0 C to 70 C)
±
°
°
Read Cycle
PARAMETER
SYM.
W24256-70L/LL
MIN. MAX.
70
UNIT
RC
Read Cycle Time
T
-
nS
nS
nS
nS
nS
nS
nS
nS
nS
AA
Address Access Time
Chip Select Access Time
Output Enable to Output Valid
T
-
-
70
70
30
-
ACS
T
AOE
T
-
CLZ
Chip Selection to Output in Low Z
Output Enable to Output in Low Z
Chip Deselection to Output in High Z
Output Disable to Output in High Z
Output Hold from Address Change
These parameters are sampled but not 100% tested
T
*
5
5
-
OLZ
T
*
*
-
CHZ
T
20
20
-
OHZ
T
*
-
OH
T
3
*
Write Cycle
PARAMETER
SYM.
W24256-70L/LL
MIN. MAX.
70
UNIT
WC
Write Cycle Time
T
-
nS
nS
nS
nS
nS
nS
CW
Chip Selection to End of Write
Address Valid to End of Write
Address Setup Time
T
70
70
0
-
-
-
-
-
AW
T
AS
T
WP
Write Pulse Width
T
50
0
WR
Write Recovery Time
T
CS WE
,
DW
Data Valid to End of Write
Data Hold from End of Write
Write to Output in High Z
T
30
0
-
-
-
nS
nS
nS
nS
nS
DH
T
WHZ
T
*
25
30
-
OHZ
Output Disable to Output in High Z
Output Active from End of Write
T
*
-
OW
T
5
These parameters are sampled but not 100% tested
*
- 4 -
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