Rainbow Electronics W24L257 User Manual
Page 4
Preliminary W24L257
- 4 -
AC Characteristics, continued
(V
DD
= 3.0V to 3.6 V; V
SS
= 0V; T
A
(
°C) = 0 to 70 for LL, -20 to 85 for LE)
Read Cycle
PARAMETER SYMBOL
W24L257-70LL/LE UNIT
MIN.
MAX.
Read Cycle Time
T
RC
70
-
nS
Address Access Time
T
AA
-
70
nS
Chip Select Access Time
T
ACS
-
70
nS
Output Enable to Output Valid
T
AOE
-
35
nS
Chip Selection to Output in Low Z
T
CLZ
* 10 -
nS
Output Enable to Output in Low Z
T
OLZ
* 5 -
nS
Chip Deselection to Output in High Z
T
CHZ
* - 30
nS
Output Disable to Output in High Z
T
OHZ
* - 30
nS
Output Hold from Address Change
T
OH
10
-
nS
∗ These parameters are sampled but not 100% tested
Write Cycle
PARAMETER SYMBOL
W24L257-70LL/LE UNIT
MIN.
MAX.
Write Cycle Time
T
WC
70 -
nS
Chip Selection to End of Write
T
CW
55 -
nS
Address Valid to End of Write
T
AW
55
-
nS
Address Setup Time
T
AS
0
-
nS
Write Pulse Width
T
WP
40
-
nS
Write Recovery Time
CS
, WE
T
WR
0 -
nS
Data Valid to End of Write
T
DW
35 -
nS
Data Hold from End of Write
T
DH
0
-
nS
Write to Output in High Z
T
WHZ
* - 25
nS
Output Disable to Output in High Z
T
OHZ
* - 25
nS
Output Active from End of Write
T
OW
5 -
nS
∗
These parameters are sampled but not 100% tested