AT89C51ED2-SMSIM ATMEL Corporation, AT89C51ED2-SMSIM Datasheet - Page 19

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

AT56800 Program / Erase Endurance:
Temperature acceleration factor calculation:
AT56800 FLASH / EEPROM Reliability Calculation:
Rev. 0 – 2003 July
Global
Calculation
AT56800
Microcontrollers
16K FLASH Program Erase Endurance: Typical 125d distribution
Data-Retention Test
Endurance Cycling
1,0E+07
1,0E+06
1,0E+05
1,0E+04
1,0E+03
15
10
5
0
010000 30000 50000 70000 90000 110000
Temperature effect on 16K FLASH Program / Erase
Endurance Temperature Acceleration
Number of cycles
25°C
A
1076331
T(125d/25d)
A01110 - 125d Endurance
T89C51CC02 - A01013L
= 11.8 - Ea = 0.25eV
165°c
250°c
55°c
125°C
AT89C51RD2 / AT89C51ED2 QualPack
94415
LEGEND
0/1101000
1/109850k Failure : 1 bit charge loss
fail Count
0/251496
Normal (94541;13074)
Weibull (100021;8,97;0)
Nc(50%)
For
expressed in device*hours,
Ea = 0.7eV, CL = 60%, T = 55°:
For sample size expressed in
equivalent cycles at 55°c, and
assuming one cycle per day,
Ea = 0.25eV, CL = 60%:
DR
EC
= 0.76 fit
= 0.29 fit
current
sample
size
19