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參數(shù)資料
| 型號： | U634H256D1C25 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | POWERSTORE 32K X 8 NVSRAM |
| 中文描述： | POWERSTORE 32K的× 8非易失性SRAM |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 248K |
| 代理商： | U634H256D1C25 |
8
April 21, 2004
U634H256
PowerStore
and Automatic Power Up RECALL
Hardware Controlled STORE
DQi
Output
Previous Data Valid
HSB
t
en(H)S
t
d(H)S
Data Valid
t
dis(H)S
No.Software Controlled STORE/RECALL
Cycle
Symbol
25
35
45
Unit
Alt.
IEC
Min. Max. Min. Max. Min. Max.
29 STORE/RECALL Initiation Time
t
AVAV
t
cR
25
35
45
ns
30 Chip Enable to Output Inactive
s
t
ELQZ
t
dis(E)SR
600
600
600
ns
31 STORE Cycle Time
t
ELQXS
t
d(E)S
10
10
10
ms
32 RECALL Cycle Time
r
t
ELQXR
t
d(E)R
20
20
20
μ
s
33 Address Setup to Chip Enable
t
t
AVELN
t
su(A)SR
0
0
0
ns
34 Chip Enable Pulse Width
s, t
t
ELEHN
t
w(E)SR
20
25
30
ns
35 Chip Disable to Address Change
t
t
EHAXN
t
h(A)SR
0
0
0
ns
t
w(H)Sq
(28)
(26)
(27)
(25)
High Impedance
V
CAP
5.0 V
V
SWITCH
t
PowerStore
Power Up
RECALL
W
DQi
POWER UP
RECALL
BROWN OUT
NO STORE
t
RESTOR
E
t
RESTORE
BROWN OUT
PowerStore
(NO SRAM WRITES)
(24)
(24)
t
PDSTOREp
t
DELAYp
p:
q:
r:
t
PDSTORE
approximate t
d(E)S
or t
d(H)S
; t
DELAY
approximate t
dis(H)S
.
After t
w(H)S
HSB is hold down internal by STORE operation.
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.
Once the software controlled STORE or RECALL cycle is initiated, it completes automatically, ignoring all inputs.
Noise on the E pin may trigger multiple READ cycles from the same address and abort the address sequence.
s:
t:
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| U634H256D1C25G1 | POWERSTORE 32K X 8 NVSRAM |
| U634H256D1C35 | POWERSTORE 32K X 8 NVSRAM |
| U634H256D1C35G1 | POWERSTORE 32K X 8 NVSRAM |
| U634H256D1C45 | POWERSTORE 32K X 8 NVSRAM |
| U634H256D1C45G1 | POWERSTORE 32K X 8 NVSRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| U634H256D1C25G1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:POWERSTORE 32K X 8 NVSRAM |
| U634H256D1C35 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:POWERSTORE 32K X 8 NVSRAM |
| U634H256D1C35G1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:POWERSTORE 32K X 8 NVSRAM |
| U634H256D1C45 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:POWERSTORE 32K X 8 NVSRAM |
| U634H256D1C45G1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:POWERSTORE 32K X 8 NVSRAM |
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