This datasheet introduces the features and characteristics of AT24C404 series EEPROM, including product features, high security features, smart card features, embedded application features and high reliability.
The AT88SC0404CA is a high‑performance CryptoMemory device offering 4 Kbit of EEPROM organized into four 1‑Kbit zones with programmable access rights, mutual authentication, MAC, and stream encryption. It supports ISO 7816 smart‑card protocols and a 2‑wire serial interface for fast initialization.
The document includes electrical characteristics, pin descriptions, absolute maximum ratings, and timing diagrams for both asynchronous and synchronous operation, as well as mechanical dimensions for the 8‑lead SOIC, PDIP, and TSSOP packages.
| User Memory | 4 Kbit (512 byte) EEPROM |
|---|---|
| Memory Zones | Four 1‑Kbit (128‑byte) zones |
| Supply Current (Async READ) | 5 mA at 3.57 MHz |
| Key Sets | Four |
| Password Sets | Eight sets of two 24‑bit passwords |
Four key sets are provided.
The user memory is divided into four 1‑Kbit (128‑byte) zones.