參數(shù)資料
型號(hào): STK1744
廠(chǎng)商: Electronic Theatre Controls, Inc.
英文描述: 32K x 8 AutoStore nvSRAM with Real-Time Clock
中文描述: 32K的× 8自動(dòng)存儲(chǔ)非易失實(shí)時(shí)時(shí)鐘
文件頁(yè)數(shù): 4/12頁(yè)
文件大?。?/td> 315K
代理商: STK1744
STK1744
January 2003
4
Document Control # ML0020 rev 0.0
WRITE CYCLES #1 & #2
(V
CC
= 5.0V
±
10%)
Note h:
Note i:
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.
WRITE CYCLE #1
: W Controlled
i
WRITE CYCLE #2
: E Controlled
i
NO.
SYMBOLS
PARAMETER
STK1744-25
STK1744-35
STK1744-45
UNITS
#1
#2
Alt.
MIN
MAX
MIN
MAX
MIN
MAX
12
t
AVAV
t
AVAV
t
WC
Write Cycle Time
25
35
45
ns
13
t
WLWH
t
WLEH
t
WP
Write Pulse Width
20
25
30
ns
14
t
ELWH
t
ELEH
t
CW
Chip Enable to End of Write
20
25
30
ns
15
t
DVWH
t
DVEH
t
DW
Data Set-up to End of Write
10
12
15
ns
16
t
WHDX
t
EHDX
t
DH
Data Hold after End of Write
0
0
0
ns
17
t
AVWH
t
AVEH
t
AW
Address Set-up to End of Write
20
25
30
ns
18
t
AVWL
t
AVEL
t
AS
Address Set-up to Start of Write
0
0
0
ns
19
t
WHAX
t
EHAX
t
WR
Address Hold after End of Write
0
0
0
ns
20
t
WLQZ
g, h
t
WZ
Write Enable to Output Disable
10
13
15
ns
21
t
WHQX
t
OW
Output Active after End of Write
5
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
DATA VALID
HIGH IMPEDANCE
14
t
ELEH
18
t
AVEL
17
t
AVEH
15
t
DVEH
19
t
EHAX
16
t
EHDX
相關(guān)PDF資料
PDF描述
STK1744-D25 32K x 8 AutoStore nvSRAM with Real-Time Clock
STK1744-D25I 32K x 8 AutoStore nvSRAM with Real-Time Clock
STK1744-D35 32K x 8 AutoStore nvSRAM with Real-Time Clock
STK1744-D35I 32K x 8 AutoStore nvSRAM with Real-Time Clock
STK1744-D45 32K x 8 AutoStore nvSRAM with Real-Time Clock
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