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參數資料
| 型號： | STK22C48W25 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 2K x 8 AutoStore⑩ nvSRAM QuantumTrap⑩ CMOS Nonvolatile Static RAM |
| 中文描述： | 2K × 8自動存儲非易失QuantumTrap⑩⑩的CMOS非易失性靜態隨機存儲器 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 194K |
| 代理商： | STK22C48W25 |
December 2002
1
Document Control # ML0004 rev 0.0
PIN CONFIGURATIONS
V
CAP
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
DQ
0
DQ
1
DQ
2
V
SS
V
CCX
W
HSB
A
8
A
9
NC
G
A
10
E
DQ
7
DQ
6
DQ
5
DQ
4
DQ
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28 - 300 PDIP
28 - 600 PDIP
28 - 300 SOIC
28 - 350 SOIC
PIN NAMES
A
0
- A
10
DQ
0
-DQ
7
E
Address Inputs
Data In/Out
Chip Enable
W
Write Enable
G
Output Enable
HSB
Hardware Store Busy (I/O)
V
CCX
V
CAP
V
SS
Power (+ 5V)
Capacitor
Ground
STK22C48
2K x 8
AutoStore
nvSRAM
QuantumTrap
CMOS
Nonvolatile Static RAM
FEATURES
25ns, 35ns and 45ns Access Times
“Hands-off” Automatic
STORE
with External
68
μ
F Capacitor on Power Down
STORE
to Nonvolatile Elements Initiated by
Hardware or
AutoStore
on Power Down
Automatic
RECALL
on
Power Up
10mA Typical I
CC
at 200ns Cycle Time
Unlimited READ, WRITE and
RECALL
Cycles
1,000,000
STORE
Cycles to Nonvolatile Ele-
ments
100-Year Data Retention in Nonvolatile Ele-
ments
Single 5V + 10% Operation
Commercial and Industrial Temperatures
28-Pin DIP and SOIC Packages
DESCRIPTION
The Simtek STK22C48 is a fast static
RAM
with a
nonvolatile element incorporated in each static
memory cell. The
SRAM
can be read and written an
unlimited number of times, while independent, non-
volatile data resides in Nonvolatile Elements. Data
transfers from the
SRAM
to the Nonvolatile Elements
(the
STORE
operation) can take place automatically
on power down. A 68
μ
F or larger capacitor tied from
V
CAP
to ground guarantees the
STORE
operation,
regardless of power-down slew rate or loss of power
from “hot swapping”. Transfers from the Nonvolatile
Elements to the
SRAM
(the
RECALL
operation) take
place automatically on restoration of power. A hard-
ware
STORE
may be initiated with the HSB pin.
BLOCK DIAGRAM
COLUMN I/O
COLUMN DEC
STATIC RAM
ARRAY
32 x 512
R
I
Quantum Trap
32 x 512
STORE/
RECALL
CONTROL
STORE
RECALL
POWER
CONTROL
A
5
A
6
A
7
A
9
DQ
0
DQ
1
DQ
2
DQ
3
DQ
4
DQ
5
DQ
6
DQ
7
G
E
W
A
8
A
10
A
3
A
2
A
0
A
1
A
4
V
CCX
V
CAP
HSB
相關PDF資料 |
PDF描述 |
|---|---|
| STK25CA8 | 128K x 8 AutoStore nvSRAM CMOS Nonvolatile Static RAM Module |
| STK25C48-W30 | DIODE TVS 5.0V 400W BIDIR 5% SMA |
| STK25C48-W30I | DIODE TVS 54V 400W BIDIR 5% SMA |
| STK25CA8-D35 | 128K x 8 AutoStore nvSRAM CMOS Nonvolatile Static RAM Module |
| STK25CA8-D35I | 128K x 8 AutoStore nvSRAM CMOS Nonvolatile Static RAM Module |
相關代理商/技術參數 |
參數描述 |
|---|---|
| STK22C48-W25 | 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:2K x 8 AutoStore⑩ nvSRAM QuantumTrap⑩ CMOS Nonvolatile Static RAM |
| STK22C48W25I | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2K x 8 AutoStore? nvSRAM QuantumTrap? CMOS Nonvolatile Static RAM |
| STK22C48-W25I | 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:2K x 8 AutoStore⑩ nvSRAM QuantumTrap⑩ CMOS Nonvolatile Static RAM |
| STK22C48W35 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2K x 8 AutoStore⑩ nvSRAM QuantumTrap⑩ CMOS Nonvolatile Static RAM |
| STK22C48-W35 | 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:2K x 8 AutoStore⑩ nvSRAM QuantumTrap⑩ CMOS Nonvolatile Static RAM |
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