64.5.5.1.1 Principle
The BUSRAM4KB Erase sequence is activated by the CLR signal.
The following table shows the runtime to perform a partial erase and a full erase.
| Erase | fICLK Frequency (kHz) | Unit | ||
|---|---|---|---|---|
| Min = 38 | Typ = 64 | Max = 90 | ||
| Partial Erase | 1.68 | 1.00 | 0.71 | ms |
| Full Erase (4 Kbytes) | 13.47 | 8.00 | 5.69 | |
During the Erase sequence, the upper 1 Kbyte of memory (BUSRAM1KB) is accessible by the system.
The erase is a write of random values instead of erase to zero.