S25FL256SAGMFIG03

S25FL256SAGMFIG03 is Cypress/Spansion’s 256-Mbit serial flash memory. It provides 32 MBytes of non-volatile storage accessed over a serial SPI interface (supports single/dual/quad I/O and QPI modes).
Key points:
- Voltage: 2.7–3.6 V
- Capacity/Organization: 256 Mbit (32 MB); 256-byte pages; 4 KB sectors; 32 KB/64 KB blocks
- Operations: page program, sector/block erase, chip erase; fast read; deep power-down; security features (block protection/OTP)
- Package: 8-pin GM package
- Applications: firmware storage, boot memory, code updates in embedded systems
For exact timing, command set, endurance, and temperature ranges, refer to the S25FL256SAGMFIG03 datasheet.

Equivalent serial flash parts (256 Mb, 3V SPI):
- Winbond W25Q256FV / W25Q256JV
- Macronix MX25L25645G
- GigaDevice GD25Q256D
- Micron N25Q256A
- ISSI IS25LP256D

Here are the key features of S25FL256SAGMFIG03 (256 Mbit Serial NOR Flash, FIG03 package):
- 256 Mb (32 MB) Serial NOR Flash memory
- SPI-compatible serial interface; high-speed read up to ~104 MHz; supports Dual/Quad I/O read modes
- Memory organization: 4 KB sectors; 32 KB and 64 KB blocks; Chip erase
- Page program (256 bytes); erase/program suspend/resume support
- Write protection via status register and block protection
- Deep power-down and standard standby modes
- Supply voltage: typically 2.7–3.6 V (3.0–3.6 V common)
- Operating temperature: industrial range (approximately -40°C to +85°C)
- Endurance/Data retention: ~100,000 P/E cycles; data retention ~20 years
- Security features: protection mechanisms for blocks/regions
- Package: 8-pin package compatible with FIG03 variant (SOP/USON style)
Note: exact voltage range and I/O options can vary by specific lot/stepping; consult the datasheet for precise details.

- Pin count: 8 pins (8-pin package)
- Function: 256‑Mbit serial NOR flash memory with SPI interface. Provides non-volatile data storage for microcontrollers, accessible via SPI signals: CS, SCK, SI (MOSI), SO (MISO), plus WP#, HOLD#, VCC, and GND.

Manufacturer: Spansion Inc. (the S25FL256SAGMFIG03 part).
What kind of company: A semiconductor company that designs and manufactures flash memory products (serial NOR flash). Spansion was originally a joint venture of AMD and Fujitsu and is now part of Cypress Semiconductor.

S25FL256SAGMFIG03 is a high-density serial flash memory. Common application areas include:
- Boot memory and firmware storage for MCUs/SoCs
- Execute-in-place (XIP) in embedded systems via Quad SPI/QPI
- Firmware updates for automotive ECUs, industrial controllers, medical and consumer devices
- Storage for networking gear (routers/switches), printers, set-top boxes, smart meters
- Data/configuration storage and logging in IoT devices
- FPGA/ASIC configuration bitstreams and application data
These uses leverage its large capacity, fast read/quad-SPI interfaces, and non-volatile storage.

An 8-pin SOIC (8‑lead small-outline) package.