The AT45DB081D is a 2.5V or 2.7V, serial-interface Flash memory ideally suited for a wide variety of digital voice-, image-, program code- and data-storage applications. The AT45DB081D supports RapidS serial interface for applications requiring very high speed operation.
The AT45DB081D is an 8‑Mbit serial‑interface Flash memory that operates from a single 2.5 V to 3.6 V supply and supports a RapidS® serial interface up to 66 MHz. It offers flexible page sizes (256 or 264 bytes), two SRAM buffers, continuous read capability, low‑power operation, and extensive data‑protection features.
The document provides pin‑out diagrams, a block diagram of the memory array, detailed descriptions of the memory architecture (sectors, blocks, pages), and the full instruction set for reading, programming and erasing the device. It also lists electrical characteristics, timing specifications, and recommended usage guidelines.
| Supply Voltage | 2.5 V to 3.6 V (or 2.7 V to 3.6 V) |
|---|---|
| Maximum Clock Frequency | 66 MHz |
| Number of Pages | 4,096 |
| Total Memory | 8 Mbit |
| Active Read Current | 7 mA (typical) |
| Standby Current | 25 pA (typical) |
| Deep Power‑Down Current | 5 pA (typical) |
| Program/Erase Cycles | 100,000 per page (minimum) |
| Data Retention | 20 years |
| Operating Temperature Range | Industrial |
The device operates from a single supply of 2.5 V to 3.6 V (or 2.7 V to 3.6 V).
The RapidS® serial interface supports up to 66 MHz clock frequency.
It contains 4,096 pages, each 256 or 264 bytes, for a total of 8 Mbit.
Typical standby current is 25 pA and deep‑power‑down current is 5 pA.