Features
- Universally compatible pinout and command set
- Standard block architecture
- Supports dual I/O, quad I/O, QPI and XiP operations
- Quad SPI enabled (default)
- Up to 133MHz
- Double Transfer Rate (DTR) up to 84MHz
- Continuous read, wrap, and burst modes for XiP
Description
The AT25QF2561C is a 256Mbit Serial Peripheral Interface (SPI) flash memory device designed for use in a wide variety of high-volume industrial, consumer, and connected applications. It can be used for storing program memory that is booted from flash memory into embedded or external RAM and/or it can be used for directly executing the code from the flash memory (execute in place (XiP). To enable fast execution, the AT25QF2561C supports Quad SPI and QPI interfaces operating up to 133MHz in addition to a double transfer rate of data up to 84MHz. The AT25QF2561C has the Quad SPI enabled by default. All other features and performance metrics are identical with AT25SF2561C.
Parameters
| Attributes | Value |
|---|---|
| Memory Class | Standard Flash |
| Memory Density | 256 |
| Operating Voltage Range (V) | 2.7 - 3.6 |
| Speed | 133 MHz |
| Interface | Quad SPI (default), Single, Dual, QPI |
| Temp. Range (°C) | -40 to +85°C |
| Deep Power Down (µA) | 0.5 |
| Read Current (mA) | 11 |
| Key Benefit | Standard features |
Package Options
| Pkg. Type |
|---|
| 16-pin SOIC |
| 5x6 DFN |
| 6x8 DFN |
| SOICW |
Product Comparison
| AT25QF2561C | AT25SF2561C | |
| Interface | Dual, QPI, Quad SPI (default), Single | Dual, QPI, Quad SPI, Single |
Application Block Diagrams
 | Intraoral Camera Portable Wi‑Fi intraoral camera for real‑time imaging, documentation, and patient guidance. |
 | Electronic Toll with GNSS ETC systems automate toll payments to reduce traffic and eliminate manual toll booth delays. |