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W25Q256JVFAQ

Name: W25Q256JVFAQ
Rating: 4.7 (12 reviews)

IC FLASH

제조업체
Mfr.부분 #W25Q256JVFAQ
패키지 16-SOIC
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사양

Package	Tube
Series	SpiFlash®
ProductStatus	Active
MemoryType	Non-Volatile
MemoryFormat	FLASH
Technology	FLASH - NOR
MemorySize	256Mb (32M x 8)
MemoryInterface	SPI - Quad I/O
ClockFrequency	133 MHz
WriteCycleTime-WordPage	3ms
AccessTime	6 ns
Voltage-Supply	2.7V ~ 3.6V
OperatingTemperature	-40°C ~ 105°C (TA)
MountingType	Surface Mount
Package/Case	16-SOIC (0.295, 7.50mm Width)

개요

Description

W25Q256JVFAQ is a Winbond 256‑Mbit serial flash memory with an SPI interface. It stores firmware and data for microcontrollers in embedded systems. Key points:
- Capacity and interface: 256 Mbit (32 MB); supports standard, dual, and quad SPI.
- Voltage and packaging: typically 2.7–3.6 V; available in 8‑pin packages (SOIC, WSON).
- Addressing and organization: uses 4‑byte addressing to access the full memory; 256‑byte pages, 4 KB sectors, 32 KB/64 KB blocks; optional security/OTP area.
- Commands and operations: Read/Fast Read, Page Program (up to 256 bytes), Sector/Block Erase, Chip Erase; Write Enable/Disable; Power‑Down/Resume.
- Performance and features: high‑speed reads with quad SPI, write protection via status/lock bits, hardware WP/HOLD pins.
- Applications: firmware storage, bootloaders, data logging, look‑up tables in MCUs.
In short, it’s a compact, high‑density SPI flash solution for code and data storage in a wide range of devices.

Features

Here are the key features of W25Q256JVFAQ (Winbond 256‑Mbit serial flash):
- Capacity: 256 Mb (32 MB) of on‑chip flash
- Interface: SPI with support for Dual I/O and Quad I/O read modes
- Addressing: 4‑byte addressing for full memory map
- Organization: 256‑byte page size; erase options include 4 KB sectors, 32 KB blocks, 64 KB blocks, and full‑chip erase
- Speed: Fast read up to ≈104 MHz (SPI/dual/quad IO modes)
- Voltage: 2.7–3.6 V supply
- Operating temp: -40°C to 85°C
- Endurance & retention: typically ~100k P/E cycles; data retention ~20 years at 25°C
- Power modes: active, and deep/standby power-down modes
- Security: write protection via status register BP bits and WP# pin
- Package: 8‑pin package (e.g., SOIC/USON variants)
Note: Always check the latest datasheet for exact timing figures and mode support.

Package

8-pin SOP (SOP-8) package (8-pin small outline).

Pinout

- Pin count: 8 pins (8‑pin package)
- Function: 256-Mbit serial flash memory with SPI interface (Winbond W25Q256JV). Used to store firmware/data.
- Pinout (8-pin SOP):
- 1: CS (Chip Select, active low)
- 2: DO / MISO
- 3: WP (Write Protect, active low)
- 4: GND
- 5: DI / MOSI
- 6: CLK
- 7: HOLD (active low)
- 8: VCC

Manufacturer

- Manufacturer: Winbond Electronics Corp.
- What kind of company: A Taiwanese semiconductor company that designs and manufactures memory integrated circuits (e.g., NOR flash, DRAM) and provides memory solutions for embedded systems.

Application

W25Q256JV is a 256-Mbit SPI flash memory. Typical applications include:
- Firmware/boot code storage for MCUs/SoCs
- Firmware updates and images in embedded systems
- Data logging/nonvolatile storage in industrial, automotive, IoT, and consumer electronics
- Code storage for routers, gateways, set-top boxes, printers, cameras
- Boot flash for automotive ECUs and networking equipment
- General-purpose, compact nonvolatile storage for MCU-based devices

Equivalent

Equivalent parts (256 Mb SPI NOR Flash, 3.3V):
- GigaDevice GD25Q256C/CS
- Macronix MX25L25645G (and variants)
- Spansion/Cypress S25FL256S
- ISSI IS25LP256D
- Fudan Microelectronics FM25L256
Note: check exact voltage, timing, and package (8-pin SOP) as revisions vary.