AT45DB161D is a 2.5-volt or 2.7-volt, serial-interface sequential access Flash memory ideally suited for a wide variety of digital voice-, image-, program code- and data-storage applications. The AT45DB161D supports RapidS serial interface for application-specific fast data transfer, provides flexible erase options, offers low power dissipation and high data retention, and supports hardware and software data protection.
The AT45DB161D is a 16‑Mbit serial‑interface DataFlash memory that operates from a single 2.5 V‑3.6 V (or 2.7 V‑3.6 V) supply. It offers a rapid serial interface up to 66 MHz, user‑configurable page sizes of 512 bytes or 528 bytes, two SRAM buffers, and low active, standby and deep‑power‑down currents. The device is suited for voice, image, program code and data‑storage applications in commercial and industrial environments.
The datasheet details pin configurations, block diagram, memory architecture (sectors, blocks, pages), and the full set of read, program and erase commands. It explains continuous array reads, page reads, buffer reads, and buffer‑to‑memory programming, including timing, opcode sequences and the behavior of the CS, SCK, SI, SO, WP, RESET and RDY/BUSY pins.
| Supply Voltage | 2.5 V‑3.6 V or 2.7 V‑3.6 V |
|---|---|
| Maximum Clock Frequency | 66 MHz |
| Number of Pages | 4,096 pages |
| SRAM Buffers | Two buffers of 512 bytes/528 bytes each |
| Active Read Current | 7 mA typical |
| Standby Current | 25 pA typical |
| Deep Power‑Down Current | 9 pA typical |
| Program/Erase Cycle Endurance | ≥ 100,000 cycles per page |
| Data Retention | 20 years |
| Operating Temperature | Industrial temperature range |
It operates from a single supply of 2.5 V to 3.6 V, or from 2.7 V to 3.6 V.
The device contains 4,096 pages, each 512 bytes or 528 bytes in size.
The serial interface can run up to 66 MHz.
The datasheet guarantees a minimum of 100,000 program/erase cycles per page.