AT24C04B/08B is a low-voltage and low-power serial electrically erasable and programmable read-only memory (EEPROM) produced by Atmel company, with 4K(512x8) and 8K(1024x8) capacity, and can be used in various industrial and commercial applications.
The AT24C04B/AT24C08B are low‑voltage, two‑wire serial EEPROMs offering 4 Kbit (512 × 8) and 8 Kbit (1024 × 8) memory densities. They are available in a variety of compact packages, including 8‑lead PDIP, 8‑lead SOIC, Ultra‑Thin Mini‑MAP (MLP 2×3), 5‑lead SOT23, 8‑lead TSSOP and 8‑ball dBGA2, and operate from 1.8 V to 5.5 V.
The datasheet details electrical characteristics such as a 1 MΩ write endurance, 100‑year data retention, 16‑byte page size, and a maximum write‑cycle time of 5 ms. Timing diagrams, pin descriptions, and bus‑protocol information are provided to aid designers in integrating the devices into low‑power, noise‑sensitive applications.
| Operating Voltage | 1.8 V – 5.5 V |
|---|---|
| Endurance | 1 Million write cycles |
| Data Retention | 100 Years |
| Page Size | 16 bytes |
| Supply Current (Read, 5 V, 100 kHz) | 0.4 – 1.0 mA |
| Package Options | PDIP, SOIC, Ultra‑Thin Mini‑MAP, SOT23, TSSOP, dBGA2 |
The devices operate from 1.8 V up to 5.5 V.
The EEPROM is rated for 1 million write cycles.
Data is written in 16‑byte pages.