參數(shù)資料
型號: STK25CA8-D35
廠商: Electronic Theatre Controls, Inc.
英文描述: 128K x 8 AutoStore nvSRAM CMOS Nonvolatile Static RAM Module
中文描述: 128K的× 8自動存儲非易失的CMOS非易失性靜態(tài)隨機(jī)存儲器模塊
文件頁數(shù): 4/8頁
文件大小: 129K
代理商: STK25CA8-D35
STK25CA8
August 1999
6-4
SRAM WRITE CYCLES #1 & #2
(V
CC
= 5.0V
±
10%)
Note i:
Note j:
If W is low when E goes low, the outputs remain in the high-impedance state.
E or W must be
V
IH
during address transitions.
SRAM WRITE CYCLE #1
: W Controlled
j
SRAM WRITE CYCLE #2
: E Controlled
j
NO.
SYMBOLS
PARAMETER
STK25CA8-35
STK25CA8-45
UNITS
#1
#2
Alt.
MIN
MAX
MIN
MAX
12
t
AVAV
t
AVAV
t
WC
Write Cycle Time
35
45
ns
13
t
WLWH
t
WLEH
t
WP
Write Pulse Width
25
30
ns
14
t
ELWH
t
ELEH
t
CW
Chip Enable to End of Write
25
30
ns
15
t
DVWH
t
DVEH
t
DW
Data Set-up to End of Write
12
15
ns
16
t
WHDX
t
EHDX
t
DH
Data Hold after End of Write
0
0
ns
17
t
AVWH
t
AVEH
t
AW
Address Set-up to End of Write
25
30
ns
18
t
AVWL
t
AVEL
t
AS
Address Set-up to Start of Write
0
0
ns
19
t
WHAX
t
EHAX
t
WR
Address Hold after End of Write
0
0
ns
20
t
WLQZ
h, i
t
WZ
Write Enable to Output Disable
13
15
ns
21
t
WHQX
t
OW
Output Active after End of Write
5
5
ns
PREVIOUS DATA
DATA OUT
E
ADDRESS
12
t
AVAV
W
16
t
WHDX
DATA IN
19
t
WHAX
13
t
WLWH
18
t
AVWL
17
t
AVWH
DATA VALID
20
t
WLQZ
15
t
DVWH
HIGH IMPEDANCE
21
t
WHQX
14
t
ELWH
DATA OUT
E
ADDRESS
12
t
AVAV
W
DATA IN
13
t
WLEH
17
t
AVEH
DATA VALID
HIGH IMPEDANCE
14
t
ELEH
18
t
AVEL
15
t
DVEH
19
t
EHAX
16
t
EHDX
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