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. It offers a RapidS® serial interface with up to 66 MHz clock frequency, configurable page sizes of 256 bytes or 264 bytes, and two SRAM buffers that allow data reception while the main array is being reprogrammed. The device supports a wide range of erase options (page, block, sector, chip) and includes hardware and software data‑protection features such as sector lockdown and a 128‑byte security register.
The datasheet describes the pin configuration, memory architecture (pages, blocks, sectors), and the full set of read, program and erase commands. It also lists electrical characteristics, such as a typical active‑read current of 7 mA, standby current of 25 pA, and deep‑power‑down current of 5 pA, as well as reliability data like 100 k program/erase cycles per page and 20‑year data retention.
| Supply Voltage | 2.5 V to 3.6 V |
|---|---|
| Maximum Clock Frequency | 66 MHz |
| Number of Pages | 4,096 |
| Active Read Current (typical) | 7 mA |
| Standby Current (typical) | 25 pA |
| Deep Power‑Down Current (typical) | 5 pA |
| Program/Erase Cycles per Page | 100,000 |
| Data Retention | 20 years |
The device supports a maximum serial‑interface clock frequency of 66 MHz.
It contains 4,096 pages, each 256 bytes or 264 bytes in size.
The part operates from a single supply of 2.5 V to 3.6 V (or 2.7 V to 3.6 V).
Each page is rated for at least 100,000 program/erase cycles.