Product Overview
The AT25FF041A is a serial interface Flash memory device designed for use in a wide variety of high-volume consumer and connected applications. It is optimized for low-energy applications and can be operated using modern Lithium battery technologies over a wide input voltage range of 1.65V - 3.6V.
The AT25FF041A is ideally suited for systems in which program code is shadowed from Flash memory into embedded or external RAM (code shadow) for execution, and where small amounts of data are stored and updated locally in the Flash memory.
The erase block sizes of the AT25FF041A have been optimized to meet the needs of todays code and data storage applications. The device supports 4 kilobyte (kB), 32 kB, and 64 kB block erase operations and a full-chip erase. By optimizing the size of the erase blocks, the memory space can be used much more efficiently.
The device contains four specialized 128-byte One-Time Programmable (OTP) security registers that can be used to store a unique device ID and locked key storage.
Specifically designed for use in a wide variety of systems, the AT25FF041A supports read, program, and erase operations. No separate voltage is required for programming and erasing.
Throughout this document, the term Multi-I/O is used generically to refer to all of the multiple I/O modes, including dual, quad, and XiP.