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| 型號(hào)： | TMP91PW18AF |
| 廠商： | Toshiba Corporation |
| 英文描述： | Quality And Reliability Assurance / Handling Precautions |
| 中文描述： | 質(zhì)量與可靠性保證/操作注意事項(xiàng) |
| 文件頁(yè)數(shù)： | 23/48頁(yè) |
| 文件大?。?/td> | 390K |
| 代理商： | TMP91PW18AF |
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Quality and Reliability Assurance / Handling Precautions
030901
QUA-23
2002-02-20
2.1.2 Writing an OTP type Microcontrollers-Recommended Flow
In the case of blank OTP (One Time PROM) type MCU, it is not
completely possible to screen defect parts that occur during assembly
process, because it is not possible to perform programming test after a
chip is assembled in a plastic package.
As a result, it is recommended to do the following screening process to
maintain quality and reliability of OTP type MCU after data are
programmed.
Programming and verification with an
EPROM programmer.
Stored in high temperature.
125°C, more than 20 hours.
Data verification with an EPROM programmer
Board assembly
For details of the initial failure rate of OTP-type microcontrollers when
screening is not performed at 125
°
C for 20 hours or more after
programming, please contact your Toshiba local offices.
Figure 2.3 Recommended Screening flow chart of type MCU
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