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AT-89C52
PLASTIC PACKAGE
125°C DYNAMIC OPERATING LIFE TEST
LOT
NUMBER
DATE
CODE
SAMPLE
SIZE
TOTAL
NUMBER
CKT-HRS(K) OF FAILURES
4C1407
4C9441
4D9441
4C9445
4D9502
5C9547
5C9549
7D9811
7D9809
7D9827
1G0136
3H0346
3H0346
5H0544
5J0603
5J0603
80
115
90
80.0
115.0
90.0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4D1707
4C1521
4D1047
90
90.0
5C1951
112
143
100
100
100
100
160
160
100
100
80
112.0
143.0
100.0
100.0
100.0
100.0
160.0
160.0
100.0
100.0
80.0
5C2822
7D2904-3
7D2904-1
7D2857
1G0215
3H5470-1
3H4406-1
5H2255A
5J3756-1
5J3757-1
FAILURE RATE
TOTAL DEVICE HOURS
BEST ESTIMATE
50°C AMBIENT
1,630,000 DEVICE HOURS
λ = 0.04% PER 1000 HOURS
EXTRAPOLATION TO 50°C VIA
ARRHENNIUS EQUATION AND
ACTIVATION ENERGY OF 0.5eV
λ = 0.001% PER 1,000 HOURS (14 FITS)
CONFIDENCE ESTIMATE
λ 60 = 0.002% PER 1000 HOURS
60% CONFIDENCE (19 FITS)
λ 90 = 0.005% PER 1000 HOURS
90% CONFIDENCE (48 FITS)
ATMEL [ ATMEL ]
