參數(shù)資料
型號(hào)： S-29220A
廠商： Seiko Instruments Inc.
英文描述： 128-Word x 16-Bit CMOS Serial EEPROM(2K位CMOS串行EEPROM)
中文描述： 128字× 16位的CMOS串行EEPROM（2K位的CMOS串行EEPROM的）
文件頁(yè)數(shù)： 22/47頁(yè)
文件大?。?/td> 255K
代理商： S-29220A
21
Collection of Product FAQs
Author: Ebisawa Takashi
Date: 99/01/13 (Wednesday) 18:19 (modified: 99/01/14)
<Information level>
A:
Public (Printing O.K.)
Index:
C: quality, reliability
<Product>
Division name: 01 IC
Category 1:
12 Memory
Category 2:
2. Serial EEPROM
Cal No.:
Overall
Related documents:
Question:
What about the reliability and quality of the EEPROM
Answer:
1.
The EEPROM must have a quality that is “special in a sense” and that differs from that of the other
ICs.
<What is this special quality>
(1) Number of possible rewrites: 105 or 106
A specified minimum number of data rewrites must be assured.
(2) Data retention: 10 years
It must be ensured that written data (‘1’ and ‘0’) will be stored for at least 10 years.
Ensuring (1) and (2) is very difficult in a technical sense, as well as in the sense that high quality must
be maintained despite the need for mass production.
2.
Why this guarantee is technically difficult
As shown in the figure below, the EEPROM functions as a non-volatile memory by holding charges
in FG.
相關(guān)PDF資料
PDF描述
S-29255 The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
S-29255ACA The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
S-29255ADP The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
S-29255AFE The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
S-29255A The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S-29220ADFJ 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:CMOS SERIAL EEPROM
S-29220ADP 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:CMOS SERIAL EEPROM
S-29220AFJ 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:CMOS SERIAL EEPROM
S-29221A 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:CMOS SERIAL EEPROM
S-29221ADP 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:CMOS SERIAL EEPROM
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