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STK16C68 PDF预览

STK16C68

更新时间: 2024-09-17 04:30:23
品牌 Logo 应用领域
SIMTEK 静态存储器
页数 文件大小 规格书
10页 383K
描述
8K x 8 AutoStorePlus⑩ nvSRAM QuantumTrap⑩ CMOS Nonvolatile Static RAM

STK16C68 数据手册

 浏览型号STK16C68的Datasheet PDF文件第2页浏览型号STK16C68的Datasheet PDF文件第3页浏览型号STK16C68的Datasheet PDF文件第4页浏览型号STK16C68的Datasheet PDF文件第5页浏览型号STK16C68的Datasheet PDF文件第6页浏览型号STK16C68的Datasheet PDF文件第7页 
STK16C68  
8K x 8 AutoStorePlus™ nvSRAM  
QuantumTrap™ CMOS  
Nonvolatile Static RAM  
Obsolete - Not Recommend for new Designs  
FEATURES  
DESCRIPTION  
• 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 ICC 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  
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 SRAMs and  
battery-backed SRAMs, 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.  
PIN CONFIGURATIONS  
BLOCK DIAGRAM  
1
NC  
28  
27  
26  
25  
24  
23  
22  
21  
20  
V
CC  
W
NC  
2
A
A
A
A
A
A
A
A
A
DQ  
DQ  
DQ  
12  
QUANTUM TRAP  
128 x 512  
3
7
6
5
4
3
2
VCC  
4
A
A
A
8
A5  
5
9
6
STORE  
11  
G
A6  
STORE/  
RECALL  
CONTROL  
7
POWER  
CONTROL  
8
A7  
A
E
10  
STATIC RAM  
ARRAY  
9
RECALL  
1
0
A8  
10  
11  
12  
13  
14  
19  
18  
17  
16  
15  
DQ  
DQ  
7
6
5
128 x 512  
A9  
0
DQ  
1
2
INTERNAL  
CAPACITOR  
28 - 600 PDIP  
A11  
A12  
DQ  
DQ  
4
3
V
SS  
DQ0  
DQ1  
DQ2  
DQ3  
DQ4  
DQ5  
DQ6  
DQ7  
PIN NAMES  
COLUMN I/O  
SOFTWARE  
DETECT  
A0 - A12  
A
- A  
12  
Address Inputs  
Write Enable  
Data In/Out  
Chip Enable  
Output Enable  
Power (+ 5V)  
Ground  
COLUMN DEC  
0
W
DQ - DQ  
0
7
A0 A1 A2 A3 A4 A10  
G
E
G
E
V
W
CC  
V
SS  
March 2006  
1
Document Control # ML0010 rev 0.2  

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8K x 8 AutoStorePlus? nvSRAM QuantumTrap? CMOS Nonvolatile Static RAM