AT-89C52 Datasheet, PDF (6/11 Pages) ATMEL Corporation – 125°C DYNAMIC OPERATING LIFE TEST

LOT
NUMBER
5J3756-1
5J3757-1
DATE
CODE
5J0603
5J0603
AT-89C52
PLASTIC PACKAGE
150°C RETENTION BAKE
PAGE 6 OF 11
SAMPLE
PKG
SIZE
44 PLCC 100
44 PLCC 100
TOTAL
CKT-HRS(K)
100.0
100.0
NUMBER
OF FAILURES
0
0
TOTAL DEVICE HOURS
BEST ESTIMATE
50°C AMBIENT
CONFIDENCE ESTIMATE
FAILURE RATE
3,867,000 DEVICE HOURS
λ = 0.02% PER 1000 HOURS
EXTRAPOLATION TO 50°C VIA
ARRHENNIUS EQUATION AND
ACTIVATION ENERGY OF 0.5eV
λ = 0.0003% PER 1,000 HOURS (3 FITS)
λ 60 = 0.0004% PER 1000 HOURS
60% CONFIDENCE (3 FITS)
λ 90 = 0.001% PER 1000 HOURS
90% CONFIDENCE (9 FITS)