AT89C51ED2-SMSIM ATMEL Corporation, AT89C51ED2-SMSIM Datasheet - Page 17

• Manufacturer Part Number: AT89C51ED2-SMSIM
• Description: 8-bit Flash Microcontroller
• Manufacturer: ATMEL Corporation

4.3.4.4 Wafer probe Data retention measurement
Data retention has been verified after bake for 168 hours at 250°C on 3 wafers of a standard production lot. The
results are summarized in the table below:
Lot
1G4448
1G4448
1G4448
Total
Conclusion:
Data Retention measurements at wafer probe stand out high data retention capability of AT56800 products,
exceeding the technology requirement of ten years.
Rev. 0 – 2003 July
Wafer
12
6
8
% Retention loss
0%
0%
0%
0%
AT89C51RD2 / AT89C51ED2 QualPack
extrapolation at 55°C
Failure rate
3..96fit
3.91fit
4.19fit
1.34fit
Time to failure
>> 10 years
>> 10 years
>> 10 years
>> 10 years
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