AT89C51RB2/RC2
Datasheet Change
Log
Changes from 4180A-
08/02 to 4180B-04/03
1. Changed the endurance of Flash to 100, 000 Write/Erase cycles.
2. Added note on Flash retention formula for VIH1, in Section “DC Parameters for
Standard Voltage”, page 107.
Changes from 4180B-
04/03 to 4180C-12/03
1. Max frequency update for 4.5 to 5.5V range up to 60 MHz (internal code
execution).
Changes from 4180C-
12/03 - 4180D - 06/05
1. Added Green product ordering information. Page 119.
1. Correction to PDIL40 figure on page 9.
Changes from 4180D -
06/05 to 4180E - 10/06
123
4180E–8051–10/06