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參數資料
| 型號： | U637H256 |
| 英文描述： | CapStore 32K x 8 nvSRAM |
| 中文描述： | CapStore 32K的× 8非易失 |
| 文件頁數： | 9/14頁 |
| 文件大小： | 158K |
| 代理商： | U637H256 |
U637H256
9
August 15, 2006
STK Control #ML0056
Rev 1.1
u:
W must be HIGH when E is LOW during the address sequence in order to initiate a nonvolatile cycle. G may be either HIGH or LOW
throughout. Addresses 1 through 6 are found in the mode selection table. Address 6 determines wheter the U637H256 performs a STORE
or RECALL.
E must be used to clock in the address sequence for the Software controlled STORE and RECALL cycles.
v:
Ai
E
DQi
Output
t
cR
t
w(E)SR
(32)
High Impedance
ADDRESS 1
VALID
VALID
t
dis(E)SR
(28)
Software Controlled STORE/RECALL Cycle
s, t, u, v
(E = HIGH after STORE initiation)
ADDRESS 6
t
cR
(27)
(27)
t
h(A)SR
(33)
t
su(A)SR
(31)
Ai
E
DQi
Output
t
cR
t
w(E)SR
(32)
High Impedance
ADDRESS 1
VALID
VALID
ADDRESS 6
t
d(E)S
(29)
(30)
(27)
t
h(A)SR
(33)
t
su(A)SR
(31)
t
dis(E)SR
(28)
t
h(A)SR
(33)
t
su(A)SR
(31)
t
w(E)SR
(32)
t
h(A)SR
(33)
(31)
(5)
t
dis(E)
Software Controlled STORE/RECALL Cycle
s, t, u, v
(E = LOW after STORE initiation)
t
d(E)S
(29)
(30)
t
d(E)R
t
d(E)R
t
su(A)SR
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