Memory Cards are simple E²Prom cards or E²Prom cards with security features. Typical sizes of E²Prom cards are:
- 256 Byte
- 2 kByte
- 8 kByte
- 16 kByte
- 32 kByte
- 64 kByte
- 128 kByte
Plain memory cards do not have a security function.
E²Prom cards with a simple security logic are more sophisticated.
Typical variations are 256 Byte (SLE4442) or 1 kByte (SLE4428).