欢迎访问ic37.com |
会员登录 免费注册
发布采购

STK16C68-WF45 参数 Datasheet PDF下载

STK16C68-WF45图片预览
型号: STK16C68-WF45
PDF下载: 下载PDF文件 查看货源
内容描述: 8K ×8 AutoStorePlus⑩的nvSRAM QuantumTrap⑩ CMOS非易失性静态RAM [8K x 8 AutoStorePlus⑩ nvSRAM QuantumTrap⑩ CMOS Nonvolatile Static RAM]
分类和应用: 内存集成电路静态存储器光电二极管
文件页数/大小: 10 页 / 383 K
品牌: SIMTEK [ SIMTEK CORPORATION ]
 浏览型号STK16C68-WF45的Datasheet PDF文件第2页浏览型号STK16C68-WF45的Datasheet PDF文件第3页浏览型号STK16C68-WF45的Datasheet PDF文件第4页浏览型号STK16C68-WF45的Datasheet PDF文件第5页浏览型号STK16C68-WF45的Datasheet PDF文件第6页浏览型号STK16C68-WF45的Datasheet PDF文件第7页浏览型号STK16C68-WF45的Datasheet PDF文件第8页浏览型号STK16C68-WF45的Datasheet PDF文件第9页  
STK16C68
8K x 8
AutoStorePlus™
nvSRAM
QuantumTrap™
CMOS
Nonvolatile Static RAM
Obsolete - Not Recommend for new Designs
FEATURES
• Internal Capacitor Guarantees
AutoStore™
Regardless of Power-Down Slew Rate
• Nonvolatile Storage without Battery Problems
• Directly Replaces 8K x 8 Static RAM, Battery-
Backed RAM or EEPROM
• 25ns, 35ns and 45ns Access Times
STORE
to Nonvolatile Elements Initiated by
Software or
AutoStorePlus™
on Power Down
RECALL
to SRAM Initiated by Software or
Power Restore
• 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 over Full Industrial
Temperature Range
• No Data Loss from Undershoot
• Commercial and Industrial Temperatures
• 28-Pin 600 mil PDIP Package
DESCRIPTION
The STK16C68 is a fast
SRAM
with a nonvolatile ele-
ment incorporated in each static memory cell. The
SRAM
can be read and written an unlimited number of
times, while independent nonvolatile data resides in
Nonvolatile Elements. Data transfers from the
SRAM
to
the Nonvolatile Elements (the
STORE
operation) can
take place automatically on power down. An internal
capacitor guarantees the
STORE
operation regardless
of power-down slew rate. Transfers from the Nonvola-
tile Elements to the
SRAM
(the
RECALL
operation) take
place automatically on restoration of power. Initiation
of
STORE
and
RECALL
cycles can also be controlled by
entering control sequences on the
SRAM
inputs. The
STK16C68 is pin-compatible with 8k x 8
SRAM
s and
battery-backed
SRAM
s, allowing direct substitution
while enhancing performance. The STK12C68, which
uses an external capacitor, and the STK15C68, which
uses charge stored in system capacitance, are alter-
natives for systems needing
AutoStore™
operation.
BLOCK DIAGRAM
QUANTUM TRAP
128 x 512
V
CC
STORE/
RECALL
CONTROL
PIN CONFIGURATIONS
NC
A
12
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
DQ
0
DQ
1
DQ
2
V
SS
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
A
5
ROW DECODER
A
6
A
7
A
8
A
9
A
11
A
12
DQ
0
DQ
1
DQ
2
DQ
3
DQ
4
DQ
5
DQ
6
DQ
7
STORE
STATIC RAM
ARRAY
128 x 512
RECALL
POWER
CONTROL
INTERNAL
CAPACITOR
V
CC
W
NC
A
8
A
9
A
11
G
A
10
E
DQ
7
DQ
6
DQ
5
DQ
4
DQ
3
28 - 600 PDIP
INPUT BUFFERS
COLUMN I/O
COLUMN DEC
SOFTWARE
DETECT
A
0
- A
12
PIN NAMES
A
0
- A
12
W
Address Inputs
Write Enable
Data In/Out
Chip Enable
Output Enable
Power (+ 5V)
Ground
A
0
A
1
A
2
A
3
A
4
A
10
DQ
0
- DQ
7
G
E
W
E
G
V
CC
V
SS
March 2006
1
Document Control # ML0010 rev 0.2