W25X40CLSVIG

W25X40CLSVIG is Winbond’s W25X40C family 4-Mbit serial SPI flash memory. It provides nonvolatile storage for firmware and data in embedded systems.
Key points:
- Capacity: 4 Mbit (512 KB); organized in 256-byte pages; sectors of 4 KB; blocks of 32 KB and 64 KB.
- Interface and speed: SPI-compatible (single SPI; some variants offer dual/quad I/O); fast read up to about 100 MHz range (datasheet variants vary).
- Voltage and temperature: typically 2.7–3.6 V supply; industrial temperature variants (-40°C to 85°C) are common.
- Operations and features: standard SPI commands (Read, Fast Read, Page Program, Sector/Block/Chip Erase); Write Enable (WEL), Write-In-Progress (WIP); power-down and basic write protection.
- Package: 8-pin surface-mount package; RoHS-compliant variants available.
- Applications: firmware/code storage for MCUs, bootloaders, data logging, firmware updates.
Note: Exact electrical specs, speed, and voltage/temperature ranges depend on the specific SVIG variant—consult the W25X40CL datasheet for precise details.

Equivalent parts (4 Mbit SPI NOR, 8-pin):
- Macronix MX25L4006E
- GigaDevice GD25Q40C/B
- Spansion/S-Cypress S25FL004A
- ISSI IS25LP040D
- Puya P25Q40U

W25X40CLSVIG is a Winbond 4‑Mbit serial flash memory with SPI interface.
Key features:
- 4 Mbit (512 KB) serial flash, 8‑pin SOP, RoHS
- Single 2.7–3.6 V supply
- 3‑byte addressing; read up to 40 MHz (fast read)
- 256‑byte page program
- Erase: 4 KB sectors; 32 KB and 64 KB blocks; chip erase
- Endurance ≈ 100,000 program/erase cycles; data retention ≈ 20 years
- Deep power-down mode; WP/HOLD pins; status register with block protection
- Temperature range: −40°C to +85°C
- Suitable for boot/code storage and data storage in embedded systems

- Pin count: 8 pins.
- Function: Winbond W25X40CLSVIG is a 4-Mbit serial SPI NOR flash memory used for non-volatile storage; it interfaces via SPI (CS, SCK, SI, SO) plus WP# and HOLD# pins, with Vcc and GND for power.

- Manufacturer: Winbond Electronics Corp.
- Company type: A Taiwanese semiconductor company that designs and manufactures memory integrated circuits (serial flash, DRAM), i.e., an integrated device manufacturer (IDM) with in-house fabrication.

W25X40CLSVIG is a 4-Mbit serial SPI NOR flash. Typical application areas include:
- Firmware and bootloader storage for microcontrollers/SoCs
- Non-volatile storage of programs, configuration, and calibration data in embedded/IoT devices
- Small data logging and lookup tables
- Firmware updates, asset data, and runtime data in consumer electronics (set-top boxes, printers, cameras, routers)
- General SPI-NOR flash replacement for EEPROM in cost- and space-constrained systems

8-pin SOP (SOIC) package, RoHS-compliant/lead-free. W25X40CLSVIG is a 4‑Mbit SPI flash in the SOP-8 form factor.