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Winbond Electronics Corporation W25X05CLSNIG TR

Name: W25X05CLSNIG TR
Brand: Winbond Electronics Corporation
SKU: W25X05CLSNIG TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: W25X05CLSNIG TR

Manufacturer:: Winbond Electronics Corporation

Category:: Memory

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: W25X05CLSNIG TR.pdf

Description:: IC FLASH 512KBIT SPI 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:3,520

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Product details

Overview

W25X05CLSNIG TR from Winbond is a 512K-bit (64KB) serial flash memory IC supporting standard SPI, dual-output SPI, and dual I/O SPI interfaces. It features uniform 4KB sectors, 32KB and 64KB erase blocks, 256-byte page programming, and operates from 2.3V to 3.6V with 1mA active and <1µA power-down current. It is used in embedded boot code storage, firmware parameter retention, and low-pin-count microcontroller systems.

For engineers reviewing the W25X05CLSNIG TR datasheet, W25X05CLSNIG TR pinout, W25X05CLSNIG TR application, or W25X05CLSNIG TR equivalent, key selection criteria include SPI mode compatibility (Mode 0/3), dual I/O timing at up to 104MHz clock (208Mbps effective), hardware write protection via /WP and /HOLD pins, and JEDEC-compliant manufacturer/device ID readback (9Fh, 90h, ABh).

Technical Context

The W25X05CLSNIG TR implements a SPI-compatible serial interface with support for three operational modes: standard single-I/O (DI/DO), fast read dual-output (IO0 only for output), and high-speed dual I/O (IO0/IO1 bidirectional). Its internal architecture includes a 256-page × 256-byte array, status register with BUSY/WEL/BP/TB/SRP bits, and dedicated instruction decoding logic for 20+ commands including Page Program (02h), Sector Erase (20h), and Fast Read Dual I/O (BBh).

It supports true execute-in-place (XIP) operation via Continuous Read Mode requiring only 16 clocks to initiate address access, and integrates hardware-level write protection through simultaneous control of the /WP pin and non-volatile status register bits (BP1/BP0/TB/SRP), enabling selective top/bottom 4KB–64KB memory region locking without software intervention.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	512K-bit (64KB), organized as 256 pages × 256 bytes - enables compact firmware storage with fine-grained update capability.
Interface Support	Standard SPI (Mode 0/3), Fast Read Dual Output (3Bh), Fast Read Dual I/O (BBh) - allows flexible bandwidth scaling from basic to 208Mbps effective throughput.
Erase Granularity	Uniform 4KB sectors, 32KB blocks, 64KB block - supports mixed code/data partitioning with minimal over-erase waste.
Write Endurance	100,000 program/erase cycles - suitable for field-upgradable firmware and infrequently modified configuration data.
Data Retention	20 years at +85°C - ensures long-term reliability in industrial temperature environments without refresh.
Supply Voltage	2.3V to 3.6V - compatible with 2.5V, 3.0V, and 3.3V system rails without level-shifting.
Operating Temp	–40°C to +85°C - qualified for extended industrial applications including automotive body control modules.

Pinout & Package

W25X05CLSNIG TR is packaged in an 8-pin SOIC 150-mil (package code SN), lead-free and RoHS-compliant, with standard gull-wing leads and 1.27mm pitch.

Pin/Terminal	Circuit Role	Design Meaning
1 /CS	Chip Select Input	Active-low enable signal; device enters high-impedance DO state when high, and accepts instructions only after falling edge synchronizes with VCC ramp.
2 DO (IO1)	Serial Data Output / Dual I/O	Unidirectional output in standard SPI; bidirectional I/O in Dual SPI modes - shares pin function with IO1 for dual-data-rate reads.
3 /WP	Hardware Write Protect Input	Active-low pin that, when asserted with SRP=1, locks status register writes - provides fail-safe protection against noise-induced corruption.
4 GND	Ground Reference	Primary return path for VCC and all I/O signals; requires low-inductance connection to minimize SPI timing jitter.
5 DI (IO0)	Serial Data Input / Dual I/O	Unidirectional input in standard SPI; bidirectional I/O in Dual SPI modes - carries instruction/address/data on rising CLK edge.
6 CLK	Serial Clock Input	Master-generated clock up to 104MHz; defines timing for all SPI transfers and must be stable during /CS low period.
7 /HOLD	Operation Pause Control	Active-low pin allowing bus arbitration; suspends ongoing transfers without resetting internal state - essential for multi-device SPI sharing.
8 VCC	Power Supply	2.3V–3.6V supply with 1µA typical power-down current; requires local 100nF ceramic decoupling adjacent to pin.

Key Features

Feature	Design Value
Continuous Read Mode	Enables XIP execution with only 16-clock instruction overhead per 24-bit address - eliminates external RAM buffering for small boot loaders.
Dual I/O SPI Interface	Supports BBh instruction for 208Mbps effective throughput - matches parallel flash performance while using only 6 pins.
Hardware + Software Write Protection	Combines /WP pin control with non-volatile BP/TB/SRP bits to lock 4KB–64KB regions - prevents accidental firmware overwrite during field updates.
JEDEC Standard Identification	Responds to 9Fh (JEDEC ID), 90h/92h (manufacturer/device ID), and 4Bh (64-bit unique serial number) - simplifies automated BOM verification and counterfeit detection.
Low-Power Power-Down Mode	Enters <1µA standby with B9h instruction - ideal for battery-backed real-time clock subsystems requiring persistent nonvolatile storage.

Applications

Boot Code Storage	Firmware Parameter Retention
Use Scenario: Storing primary bootloader and initial application code for ARM Cortex-M0/M3 microcontrollers during cold start. IC Role / Device Role / Timing Role: Nonvolatile code memory accessed via SPI XIP mode; delivers first instruction within 16 clocks of address assertion. Use Value: Eliminates need for external parallel flash or RAM copy step, reducing BOM count and boot latency by >30% in resource-constrained designs.	Use Scenario: Holding calibrated sensor offsets, network MAC addresses, and user preferences across power cycles in smart thermostats. IC Role / Device Role / Timing Role: Parameter EEPROM replacement; supports atomic 256-byte page writes with <1ms latency and 100k-cycle endurance. Use Value: Enables field firmware updates without dedicated EEPROM, lowering cost and PCB area while maintaining data integrity under brownout conditions.
Industrial HMI Configuration	Wireless Module Firmware Image
Use Scenario: Storing display layout definitions, language strings, and button mapping tables for touch-based human-machine interfaces. IC Role / Device Role / Timing Role: Read-mostly data store accessed via Fast Read Dual Output (3Bh); sustains 104MHz CLK for rapid UI asset loading. Use Value: Reduces UI initialization time from 120ms to <40ms versus standard SPI, improving perceived responsiveness in factory-floor HMIs.	Use Scenario: Hosting full OTA firmware images for Bluetooth LE and Zigbee modules where host MCU lacks internal flash capacity. IC Role / Device Role / Timing Role: External program memory mapped via SPI; supports Chip Erase (C7h) and Sector Erase (20h) for safe image swapping. Use Value: Allows secure dual-bank OTA updates with verified rollback - critical for certified wireless devices requiring zero-downtime field upgrades.

Boot Code Storage

Firmware Parameter Retention

Use Scenario: Storing primary bootloader and initial application code for ARM Cortex-M0/M3 microcontrollers during cold start.

IC Role / Device Role / Timing Role: Nonvolatile code memory accessed via SPI XIP mode; delivers first instruction within 16 clocks of address assertion.

Use Value: Eliminates need for external parallel flash or RAM copy step, reducing BOM count and boot latency by >30% in resource-constrained designs.

Use Scenario: Holding calibrated sensor offsets, network MAC addresses, and user preferences across power cycles in smart thermostats.

IC Role / Device Role / Timing Role: Parameter EEPROM replacement; supports atomic 256-byte page writes with <1ms latency and 100k-cycle endurance.

Use Value: Enables field firmware updates without dedicated EEPROM, lowering cost and PCB area while maintaining data integrity under brownout conditions.

Industrial HMI Configuration

Wireless Module Firmware Image

Use Scenario: Storing display layout definitions, language strings, and button mapping tables for touch-based human-machine interfaces.

IC Role / Device Role / Timing Role: Read-mostly data store accessed via Fast Read Dual Output (3Bh); sustains 104MHz CLK for rapid UI asset loading.

Use Value: Reduces UI initialization time from 120ms to <40ms versus standard SPI, improving perceived responsiveness in factory-floor HMIs.

Use Scenario: Hosting full OTA firmware images for Bluetooth LE and Zigbee modules where host MCU lacks internal flash capacity.

IC Role / Device Role / Timing Role: External program memory mapped via SPI; supports Chip Erase (C7h) and Sector Erase (20h) for safe image swapping.

Use Value: Allows secure dual-bank OTA updates with verified rollback - critical for certified wireless devices requiring zero-downtime field upgrades.

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial flash memory applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AT25DF041A-SSH-T	4Mb density (512KB), supports DTR mode up to 80MHz, no dual I/O; uses different status register bit mapping (SRWD vs SRP).	Larger capacity suits complex firmware but lacks BBh dual I/O instruction; requires redesign of protection logic due to SRWD-only hardware lock.	Select when higher density and DTR timing margin are prioritized over dual I/O bandwidth and legacy W25X-series register compatibility.
MX25L512CM1I-12G	512K-bit density, supports 133MHz CLK in quad I/O mode; includes QE bit and different JEDEC ID (C2 2010); no /HOLD pin in SOIC variant.	Enables faster quad-mode reads but removes hardware hold arbitration - unsuitable for shared-SPI bus systems requiring pause capability.	Select when maximum read speed is critical and /HOLD functionality is not required; verify pinout compatibility (no /HOLD on SOIC version).

Compared with AT25DF041A-SSH-T and MX25L512CM1I-12G, the W25X05CLSNIG TR uniquely balances 104MHz dual I/O throughput, integrated /HOLD arbitration, and identical status register semantics with legacy Winbond designs - making it optimal for drop-in replacements in existing W25X-based platforms requiring no PCB or firmware changes.

Availability

W25X05CLSNIG TR is available at Aetrix Electronics and suitable for embedded boot code storage, industrial HMI configuration, and wireless module firmware image hosting requiring stable component supply and long-term lifecycle assurance.

Supply support for W25X05CLSNIG TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Winbond Electronics is a Taiwan-based semiconductor company specializing in specialty DRAM, mobile DRAM, and serial NOR/NAND flash memory solutions since 1987.

The W25X series was designed specifically for space-constrained embedded systems needing reliable, low-power, pin-efficient code and data storage - targeting microcontroller-based applications in industrial control, consumer electronics, and IoT endpoints.

FAQ

What SPI modes does the W25X05CLSNIG TR support?

The W25X05CLSNIG TR supports SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), both compliant with JEDEC JESD72 standards. It does not support Mode 1 or Mode 2. The device requires CLK idle state matching the selected mode at /CS falling edge; mismatched idle states may cause instruction misalignment or communication failure. All timing parameters in the datasheet assume proper mode configuration.

Does the W25X05CLSNIG TR support true execute-in-place (XIP) operation?

Yes, the W25X05CLSNIG TR supports true XIP via its Continuous Read Mode, which reduces instruction overhead to just 16 clocks for address setup and enables sequential byte reads without reissuing commands. This allows direct CPU instruction fetch over SPI in supported microcontrollers (e.g., certain STM32 and NXP Kinetis variants), eliminating RAM copy steps and reducing boot time significantly compared to standard read commands.

How does hardware write protection work on the W25X05CLSNIG TR?

Hardware write protection on the W25X05CLSNIG TR combines the /WP pin with the Status Register Protect (SRP) bit. When SRP=1 and /WP is low, all status register writes (including BP/TB bits) are blocked - preventing accidental or noise-induced memory lockout. This dual-layer mechanism remains active even during power transitions, ensuring robust protection without software dependency. The /WP pin must be pulled high to enable status register modification.

What is the maximum clock frequency for dual I/O operation on the W25X05CLSNIG TR?

The W25X05CLSNIG TR supports dual I/O SPI operation at up to 104MHz clock frequency, achieving an effective data rate of 208Mbps using the Fast Read Dual I/O (BBh) instruction. This timing is validated across the full –40°C to +85°C operating range and requires strict adherence to AC electrical characteristics, including tVH (CLK high time), tVL (CLK low time), and tSU/DH (data setup/hold relative to CLK edges) as specified in Section 9.6 of the datasheet.

Can the W25X05CLSNIG TR be used in place of the W25X05CLSNIG without changes?

Yes, the W25X05CLSNIG TR is a tape-and-reel packaging variant of the W25X05CLSNIG, sharing identical electrical specifications, pinout, timing, and functional behavior. The "TR" suffix denotes tape-and-reel delivery format only - no die, mask, or revision differences exist. PCB layout, firmware, and schematic remain fully interchangeable between W25X05CLSNIG and W25X05CLSNIG TR.

W25X05CLSNIG TR Specifications

Product attributes: Attribute value

Manufacturer:: Winbond Electronics Corporation

Series:: SpiFlash®

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: FLASH

Technology:: FLASH - NOR

Memory Size:: 512Kbit

Memory Organization:: 64K x 8

Memory Interface:: SPI

Clock Frequency:: 104 MHz

Write Cycle Time - Word, Page:: 800µs

Access Time:: -

Voltage - Supply:: 2.3V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

W25X05CLSNIG TR FAQ

1.How can I place an order for W25X05CLSNIG TR through Aetrix?

Please submit a Request for Quotation (RFQ) for W25X05CLSNIG TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for W25X05CLSNIG TR reliable?

The price and inventory of W25X05CLSNIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25X05CLSNIG TR is usually 5 days.

3.What payment methods are accepted for W25X05CLSNIG TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25X05CLSNIG TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for W25X05CLSNIG TR?

W25X05CLSNIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your W25X05CLSNIG TR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for W25X05CLSNIG TR?

For technical support, including W25X05CLSNIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25X05CLSNIG TR requirements.

6.How does Aetrix verify that W25X05CLSNIG TR is sourced from the original manufacturer or authorized distributors?

All W25X05CLSNIG TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that W25X05CLSNIG TR meets industry standards.

7.What is the process for return or replacement of W25X05CLSNIG TR?

All W25X05CLSNIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25X05CLSNIG TR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The W25X05CLSNIG TR part is unused and in its original packaging.

Return procedure for W25X05CLSNIG TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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