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STK16C68-S20I PDF预览

STK16C68-S20I

更新时间： 2024-11-09 09:00:23
品牌 Logo 应用领域
其他 - ETC 静态存储器
页数 文件大小 规格书
9页 97K
描述
8K x 8 AutoStorePlus? nvSRAM QuantumTrap? CMOS Nonvolatile Static RAM

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中文翻译

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STK16C68-S20I 数据手册

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STK16C68  
8K x 8 AutoStorePlus™ nvSRAM  
QuantumTrap™ CMOS  
Nonvolatile Static RAM  
FEATURES  
DESCRIPTION  
• Transparent Data Save on Power Down  
• 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  
• 20ns, 25ns, 35ns and 45ns Access Times  
• STORE to EEPROM 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 EEPROM  
• 100-Year Data Retention over Full Industrial  
Temperature Range  
• No Data Loss from Undershoot  
• Commercial and Industrial Temperatures  
• 28-Pin 600 mil PDIP and 350 mil SOIC Packages  
The STK16C68 is a fast SRAM with a nonvolatile  
EEPROM element incorporated in each static memory  
cell. The SRAM can be read and written an unlimited  
number of times, while independent nonvolatile data  
resides in EEPROM. Data transfers from the SRAM to  
the EEPROM (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 EEPROM 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 con-  
trol 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 alternatives for sys-  
tems needing AutoStore™ operation.  
PIN CONFIGURATIONS  
BLOCK DIAGRAM  
NC  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
V
CC  
W
NC  
A
A
A
A
A
A
A
A
A
DQ  
DQ  
DQ  
2
12  
EEPROM ARRAY  
128 x 512  
3
7
6
5
4
3
2
VCC  
4
A
8
A
9
A5  
5
6
A
STORE  
11  
G
A6  
STORE/  
RECALL  
CONTROL  
7
POWER  
CONTROL  
A7  
8
A
E
10  
STATIC RAM  
ARRAY  
9
RECALL  
1
0
A8  
10  
11  
12  
13  
14  
DQ  
DQ  
7
6
5
128 x 512  
A9  
0
DQ  
1
2
INTERNAL  
CAPACITOR  
28 - 600 PDIP  
28 - 350 SOIC*  
A11  
A12  
DQ  
DQ  
4
3
V
SS  
*see order info  
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  
July 1999  
4-73  
1234567...9

中文翻译

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与STK16C68-S20I相关器件

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 		NVRAM (EEPROM Based)
STK16C68-S25I SIMTEK

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 		Non-Volatile SRAM, 8KX8, 25ns, CMOS, PDSO28, 0.350 INCH, PLASTIC, SOIC-28
STK16C68-S35 SIMTEK

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 		Non-Volatile SRAM, 8KX8, 35ns, CMOS, PDSO28, 0.350 INCH, PLASTIC, SOIC-28
STK16C68-S35I ETC

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 		NVRAM (EEPROM Based)
STK16C68-S45 SIMTEK

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 		Non-Volatile SRAM, 8KX8, 45ns, CMOS, PDSO28, 0.350 INCH, PLASTIC, SOIC-28
STK16C68-S45I SIMTEK

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 		Non-Volatile SRAM, 8KX8, 45ns, CMOS, PDSO28, 0.350 INCH, PLASTIC, SOIC-28
STK16C68-W20 SIMTEK

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 		Non-Volatile SRAM, 8KX8, 22ns, CMOS, PDIP28, 0.600 INCH, PLASTIC, DIP-28
STK16C68-W20I ETC

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 		8K x 8 AutoStorePlus? nvSRAM QuantumTrap? CMOS Nonvolatile Static RAM
STK16C68-W25 SIMTEK

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 		8K x 8 AutoStorePlus⑩ nvSRAM QuantumTrap⑩ CMO
STK16C68-W25 CYPRESS

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 		8KX8 NON-VOLATILE SRAM, 25ns, PDIP28, 0.600 INCH, PLASTIC, DIP-28

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