Protected Memory Cards
Applications include fuel cards, vending cards, loyalty applications, electronic coupons, subscribers card, electronic purse, access control, membership cards, utility prepayment, identity and variety of protected portable data files.
| Product | Memory | Read Protection | Write Protection | Protocol | Further Info |
| Infineon Cards | |||||
| SLE 5532 | 256 byte | no | no | two wire | Product Sheet Data Carrier |
| SLE 4442 (phased out limited stock) |
256 byte | no | yes | two-wire | Datasheet |
| SLE 5542 | 256 byte | no | yes | two-wire | Product Sheet Data Carrier |
| SLE 5552 | 256 byte | yes | yes | two-wire | Product Sheet Data Carrier |
| SLE 5518 | 1024 byte | no | no | three wire | Product Sheet Data Carrier |
| SLE 4428 (phased out limited stock) |
1024 byte | no | yes | three-wire | Datasheet |
| SLE 5528 | 1024 byte | no | yes | three-wire | Product Sheet Data Carrier |
| SLE 5538 | 1024 byte | yes | yes | three-wire | Product Sheet Data Carrier |
| Fudan Cards | |||||
| FM4442 | 256 byte | no | yes | two-wire | Data Sheet |
| FM4428 | 1024 byte | no | yes | two-wire | Data Sheet |
| Atmel Cards | |||||
| AT88SC101/102 | 156 byte | yes | yes | Datasheet | |
| AT88SC153 | 192 byte | yes | yes | Datasheet | |
| AT88SC1608 | 2048 byte | yes | yes | Datasheet |
