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W25Q256FVEIQ

IC FLASH 256MBIT SPI/QUAD 8WSON

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제조업체 부품 #W25Q256FVEIQ
데이터시트 W25Q256FVEIQ DataSheet
패키지 WDFN-8
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사양

속성	가치
Package	Tube
Series	SpiFlash®
ProductStatus	Discontinued at Digi-Key
MemoryType	Non-Volatile
MemoryFormat	FLASH
Technology	FLASH - NOR
MemorySize	256Mb (32M x 8)
MemoryInterface	SPI - Quad I/O, QPI
ClockFrequency	104 MHz
WriteCycleTime-WordPage	50µs, 3ms
Voltage-Supply	2.7V ~ 3.6V
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	8-WDFN Exposed Pad

개요

Description

W25Q256FVEIQ is Winbond’s 256-Mbit serial NOR flash in an 8‑pin package. It provides SPI-compatible access with multiple IO modes (standard SPI, dual/quad SPI, and QPI) for higher throughput. The device stores firmware and data in a 32 MB array and uses 4‑byte addressing to reach the full space. It supports page programming, sector erases (typically 4 KB), and block erases (64 KB and larger), plus whole‑chip erase. It operates from a 2.7–3.6 V supply (industrial-grade variants exist) and offers standard security features such as block protection, WP# and HOLD pins, and status/ID registers. Typical applications include firmware storage and boot code for MCUs, FPGA configuration memory, and data logging. The W25Q256FVEIQ combines high capacity with low pin count and flexible read modes to balance speed and simplicity in embedded systems.

Equivalent

W25Q256FVEIQ is a 256-Mbit serial SPI flash. Common equivalents (256 Mb SPI Flash) include:
- Macronix MX25L25645G, MX25L25635F
- GigaDevice GD25Q256C, GD25Q256D
- Spansion/Cypress S25FL256S, S25FL256SD
- ISSI IS25LP256D
- Nuvoton/N25Q256A
- Puya P25Q256H
- Microchip/Atmel AT25DF256A
- Fudan FM25L256
Note: check voltage, timing, and package compatibility.

Features

W25Q256FVEIQ features (concise):
- 256 Mbit (32 MB) serial flash memory
- SPI interface with Standard, Dual I/O, and Quad I/O (QPI) modes
- 4‑byte addressing to access 256 Mb
- 256-byte page programming
- Erase types: 4 KB sectors, 64 KB blocks, and chip erase
- Fast read and Quad I/O read options
- On‑chip status and protection: WIP/WEL bits, Quad Enable (QE) bit, block protections
- Deep Power-Down mode for low power
- Security features via block protection and protection registers
- Endurance: typically 100,000 P/E cycles; data retention ~20 years
- Supply voltage: 2.7–3.6 V
- Operating temperature: -40 °C to 85 °C (industrial grade)
- Package: 8‑pin SOP/SOIC
Note: exact performance (max read frequency, dual/quad throughput) can vary by variant; this specifies common capabilities of the W25Q256FVEIQ family.

Pinout

- Pin count: 8 pins (SOIC-8/SOP-8)
- Function: 256-Mbit serial SPI flash memory (Winbond W25Q256FVEIQ) for non-volatile storage. Pins include CS, CLK, MOSI, MISO, VCC, GND, WP#, and HOLD#.

Manufacturer

- Manufacturer: Winbond Electronics Corp.
- What kind of company: A Taiwanese semiconductor company and an integrated device manufacturer (IDM) that designs and manufactures memory ICs (e.g., NOR flash, DRAM, etc.).

Application

W25Q256FVEIQ is a 256-Mbit serial NOR flash (Quad I/O/QPI) used as external flash for embedded systems. Common applications include:
- Firmware storage, boot code, and Execute-In-Place for MCUs/SoCs
- Firmware updates and data logging in IoT, industrial, and automotive equipment
- Parameter/configuration storage in networking gear (routers/switches) and multimedia devices
- Storage for consumer electronics (cameras, printers, set-top boxes, gaming peripherals) requiring non-volatile memory