The document introduces the AT24CS04-R series EEPROM products, including 4-Kbit (512-byte) EEPROM User Memory, 2-Kbit Configuration Zone, High Security Features, Smart Card Features, Embedded Application Features, High Reliability etc.
The AT88SC0404C is a member of Atmel's CryptoMemory family, providing 4 Kbits of user EEPROM memory divided into four 128‑byte zones with programmable access rights. It includes high‑security functions such as 64‑bit mutual authentication, stream encryption, encrypted checksum and multiple key sets.
The device operates from 2.7 V to 5.5 V, supports both asynchronous ISO 7816‑3 T=0 and synchronous 2‑wire serial interfaces, and is supplied in standard 8‑lead plastic packages. Electrical characteristics include 100 k cycles endurance, 10‑year data retention, and 4 kV ESD protection.
| User Memory Size | 4 Kbit (512 byte) |
|---|---|
| Number of User Zones | 4 zones of 128 byte each |
| Configuration Zone Size | 2 Kbit |
| Endurance | 100 000 write cycles |
| Data Retention | 10 years |
| ESD Protection | 4 kV minimum |
It provides four user zones, each 128 bytes in size.
The write‑cycle time is 5 ms at 25 °C.