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參數資料
型號: U635H64S2C35G1
英文描述: PowerStore 8K x 8 nvSRAM
中文描述: PowerStore 8K的× 8非易失
文件頁數: 8/14頁
文件大?。?/td> 149K
代理商: U635H64S2C35G1
U635H64
8
March 31, 2006
STK Control #ML0052
Rev 1.0
PowerStore
and automatic Power Up RECALL
o:
p:
q:
r: An automatic RECALL also takes place at power up, starting when V
CC
exceeds V
SWITCH
and takes t
RESTORE
. V
CC
must not drop below
V
SWITCH
once it has been exceeded for the RECALL to function properly.
s:
Noise on the E pin may trigger multiple READ cycles from the same address and abort the address sequence.
t:
If the Chip Enable Pulse Width is less than t
a(E)
(see Read Cycle) but greater than or equal t
w(E)SR
, than the data may not be valid at
the end of the low pulse, however the STORE or RECALL will still be initiated.
The software sequence is clocked with E controlled READs.
Once the software controlled STORE or RECALL cycle is initiated, it completes automatically, ignoring all inputs.
Note that STORE cycles (but not RECALL) are aborted by V
CC
< V
SWITCH
(STORE inhibit).
No.
Software Controlled STORE/
RECALL Cycle
k, o
Symbol
25
35
45
Unit
Alt.
IEC
Min. Max. Min. Max. Min. Max.
27
STORE/RECALL Initiation Time
t
AVAV
t
cR
25
35
45
ns
28
Chip Enable to Output Inactive
p
t
ELQZ
t
dis(E)SR
600
600
600
ns
29
STORE Cycle Time
q
t
ELQXS
t
d(E)S
10
10
10
ms
30
RECALL Cycle Time
r
t
ELQXR
t
d(E)R
20
20
20
μ
s
31
Address Setup to Chip Enable
s
t
AVELN
t
su(A)SR
0
0
0
ns
32
Chip Enable Pulse Width
s, t
t
ELEHN
t
w(E)SR
20
25
35
ns
33
Chip Disable to Address Change
s
t
EHAXN
t
h(A)SR
0
0
0
ns
V
CC
5.0 V
V
SWITCH
t
PowerStore
Power Up
RECALL
W
DQi
POWER UP
RECALL
BROWN OUT
NO STORE
t
RESTORE
t
RESTORE
BROWN OUT
PowerStore
(NO SRAM WRITES)
(24)
(24)
t
PDSTOREp
(25)
t
DELAY
(26)
相關PDF資料
PDF描述
U635H64S2C45 PowerStore 8K x 8 nvSRAM
U635H64S2C45G1 PowerStore 8K x 8 nvSRAM
U635H64S2K25 PowerStore 8K x 8 nvSRAM
U635H64S2K25G1 PowerStore 8K x 8 nvSRAM
U635H64S2K35 PowerStore 8K x 8 nvSRAM
相關代理商/技術參數
參數描述
U635H64S2C45 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:PowerStore 8K x 8 nvSRAM
U635H64S2C45G1 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:PowerStore 8K x 8 nvSRAM
U635H64S2K25 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:PowerStore 8K x 8 nvSRAM
U635H64S2K25G1 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:PowerStore 8K x 8 nvSRAM
U635H64S2K35 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:PowerStore 8K x 8 nvSRAM
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