参数资料
型号: W24L257S70LL
英文描述: x8 SRAM
中文描述: x8的SRAM
文件页数: 4/11页
文件大小: 213K
代理商: W24L257S70LL
W24L257
- 4 -
AC Characteristics, continued
Read Cycle
(V
DD
= 5V
±
10%; V
DD
= 3V
±
5%; V
SS
= 0V; T
A
(
°
C) = 0 to 70 for L/LL, -20 to 85 for LE, -40 to 85 for LI)
PARAMETER
SYMBOL
3.3V/5V
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
3.3V/5V
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
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