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參數(shù)資料
| 型號： | S-29U194A |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | 1Kbit CMOS Serial EEPROM(1K位CMOS串行EEPROM) |
| 中文描述： | 1Kbit的CMOS串行EEPROM（每1000位的CMOS串行EEPROM的） |
| 文件頁數(shù)： | 28/41頁 |
| 文件大?。?/td> | 185K |
| 代理商： | S-29U194A |
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2
7
Collection of Product FAQs
Author: Kano Tomoo
Date: 98/11/12 (Thursday) 10:17 (modified: 99/01/13)
<Information level>
B:
For Distri & Rep (Printing N.G.)
Index:
B: Technical
<Product>
Division name: 01 IC
Category 1:
12 Memory
Category 2:
2. Serial EEPROM
Cal. No.:
Overall
Related documents:
Question:
False-writes in S-93C, S-29 series: inadvertent activation of CS (malfunction)
Answer:
Inadvertent writing in the S-29 series
In the S-29 series, when a CS input is inadvertently activated during a write command, undefined data
may be written. Relevant timings are shown below.
A command is composed of the following: “start bit + two command bits + address + (data).”
The figure below shows the timings in which commands are set (In the figure, the portion denotes the
rising edge of SK.)
In the case of a write command, after a final address has been input and while 16-bit data is being input,
undefined data is written when the CS input is changed from H to L.
Activation of SK obtaining A
VERIFY
t
CDS
t
PR
busy
Hi-Z
t
SV
t
HZ1
25
D0
ready
Hi-Z
1
[WRITE]
CS
SK
DI
DO
2
3
4
5
6
7
8
9
10
1
0
1
A5
A4
A3
A2
A1
A0
D15
Case in which, during a command entry, CS is changed from H to L with a timing that differs by a
predetermined minimum number of clocks.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-29U220A | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:CMOS SERIAL EEPROM |
| S-29U220ADFE | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:CMOS SERIAL EEPROM |
| S-29U220AFS | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:CMOS SERIAL EEPROM |
| S-29U221A | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:CMOS SERIAL EEPROM |
| S-29U221ADFE | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:CMOS SERIAL EEPROM |
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