S25FL256LAGNFM010

S25FL256LAGNFM010 is a 256‑Mbit serial NOR flash memory (32 MB) from Spansion/Cypress, designed for embedded code and data storage with a compact SPI interface. Key points:
- Capacity and organization: 256 Mbit nonvolatile storage (commonly organized as 32M x 8).
- Interface: SPI-compatible read/write/erase; supports standard SPI commands; some variants offer dual/quad I/O modes.
- Memory architecture: supports page programming (typically 256-byte pages) and sector/block erase (various sizes).
- Voltage and temp: operates around 2.7–3.6 V (3.3 V nominal); industrial-grade temperature options are available.
- Endurance and retention: P/E cycles on the order of tens to hundreds of thousands with data retention often rated for many years.
- Protection and features: hardware write protection options, security features, and deep power-down to save power.
- Package options: 8-pin packages (e.g., SOIC8, WSON8) suitable for space-constrained boards.
- Typical use: boot code, firmware storage, and data logging in embedded systems.
For exact electrical specs, timing, and command set, refer to the S25FL256LAGNFM010 datasheet.

Key features of S25FL256LAGNFM010 (256-Mbit serial NOR flash):
- Density: 256 Mbit (32 MBytes) of flash memory
- Interface: Serial SPI with support for Dual SPI, Quad SPI, and QPI for higher throughput
- Voltage: 2.7 V to 3.6 V operation
- Addressing: 4-byte addressing mode (enables full map beyond 16 MB)
- Page size: 256-byte page program
- Erase architecture: 4 KB sectors; 32 KB and 64 KB blocks
- Read/Write: standard read, fast read, and high-speed/dual/quad read modes
- Power modes: Deep power-down mode and low-power standby
- Write protection: hardware write-protect (WP#) and block protection via status/ configuration registers
- Security: sector/block protection options and status register controls
- Operational features: suspend/resume during erase/program operations
- Packaging: 8-pin packages (e.g., SOIC8/WSON8)
- Standards: JEDEC-compatible serial flash with industry-standard commands
Note: Specific timings (read/erase/program times and maximum clock) are in the datasheet.

8-pin SOIC (small-outline) package. (Also available in a WSON-8 variant for other options.)

- Pin count: 8 pins (8-pin package: CS, CLK, DI, DO, WP#, HOLD#, VCC, VSS)
- Function: 256-Mbit Serial NOR Flash memory with SPI-compatible interface (supports standard SPI and Dual/Quad I/O modes) for non-volatile storage of code/data.

Manufacturer: Cypress Semiconductor (originally Spansion; now part of Infineon Technologies).
What kind of company: A semiconductor company that designs and manufactures memory products, including NOR flash used in electronics.

- Firmware storage and execute-in-place (XIP) for MCUs/SoCs
- Boot memory for embedded systems
- Code/data storage in consumer electronics, industrial, and networking equipment
- Automotive ECUs (with suitable automotive-grade variant)
- IoT devices requiring reliable SPI/NOR flash
- Data logging and firmware update storage

Possible equivalents (256-Mbit SPI flash, similar interface/commands):
- Winbond W25Q256FV
- Macronix MX25L25645G
- GigaDevice GD25Q256C / GD25Q256D
- ISSI IS25LP256D
- Puya P25Q256H
Note: check voltage, package, timing, and Quad/Dual I/O support to ensure full compatibility with your design.