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Winbond Electronics Corporation W25Q64CVZPSG

Name: W25Q64CVZPSG
Brand: Winbond Electronics Corporation
SKU: W25Q64CVZPSG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: W25Q64CVZPSG

Manufacturer:: Winbond Electronics Corporation

Category:: Memory

Package:: 8-WDFN Exposed Pad

Datasheet:: W25Q64CVZPSG.pdf

Description:: IC FLASH 64MBIT SPI/QUAD 8WSON

Quantity:: RFQ Add To RFQ list

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Product details

Overview

W25Q64CVZPSG from Winbond is a 64M-bit (8MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces with up to 80MHz clock frequency, 4KB uniform sector architecture, and hardware write protection via /WP and /HOLD pins - used for code storage, XIP execution, and firmware parameter retention in microcontroller-based embedded systems.

For engineers reviewing the W25Q64CVZPSG datasheet, W25Q64CVZPSG pinout, W25Q64CVZPSG application, or W25Q64CVZPSG equivalent, key selection considerations include Quad SPI enable (QE bit), 4KB sector erase granularity, JEDEC ID and SFDP register support, and compatibility with 2.7–3.6V supply and -40°C to +85°C industrial temperature range.

Technical Context

The W25Q64CVZPSG implements a SPI command-set architecture with three operational modes: Standard SPI (DI/DO), Dual SPI (IO0/IO1), and Quad SPI (IO0–IO3), where Quad mode requires non-volatile QE bit setting in Status Register-2. It features a 32,768 × 256-byte page array, 2,048 erasable 4KB sectors, and 128 erasable 64KB blocks.

Its functional design includes dual-purpose I/O pins (IO0–IO3), hardware-controlled /WP and /HOLD inputs active-low, programmable block protection (BP2–BP0, TB, SEC), and 64-bit unique ID. Erase/program suspend/resume capability enables concurrent background operations without bus interruption.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	64 M-bit (8 MB) - supports full firmware images for mid-tier MCUs without external memory expansion.
Interface Support	Standard/Dual/Quad SPI - enables scalable bandwidth: up to 320 MB/s effective rate in Quad I/O mode using EBh instruction.
Page Size	256 bytes - minimum programmable unit; allows fine-grained updates without disturbing adjacent data.
Sector Erase	4 KB uniform sectors - permits isolated firmware parameter or configuration storage with minimal erase overhead.
Clock Frequency	Up to 80 MHz - delivers 40 MB/s continuous read throughput, exceeding parallel flash performance in space-constrained designs.
Data Retention	20 years - ensures long-term reliability for unpowered storage in industrial control and automotive modules.
Erase/Program Cycles	100,000 cycles (block-level) - supports frequent field firmware updates in IoT edge devices.
Supply Voltage	2.7 V to 3.6 V - compatible with standard 3.3 V logic rails and low-power MCU domains.

Pinout & Package

W25Q64CVZPSG uses an 8-pad WSON 6×5-mm package (package code ZP), with exposed pad for thermal dissipation and no internal heatsink requirement in typical 4mA active operation.

Pin/Terminal	Circuit Role	Design Meaning
/CS	Chip Select Input	Active-low enable: places DO/IO pins in high-impedance state when deasserted; required to transition H→L before instruction acceptance after power-up.
DO (IO1)	Bidirectional Data Output/Input	Serial data output in Standard/Dual SPI; becomes IO1 in Dual/Quad modes - supports fast-read instructions including 6Bh and EBh.
/WP (IO2)	Write Protect Input / Quad I/O Pin	Hardware lock for status register writes when QE=0; repurposed as IO2 in Quad mode (QE=1), disabling hardware WP.
GND	Ground Reference	Primary return path for all I/O and core logic; must be low-impedance connection to avoid timing skew in high-speed SPI reads.
DI (IO0)	Bidirectional Data Input/Input	Serial data input in Standard/Dual SPI; becomes IO0 in Dual/Quad modes - carries commands, addresses, and program data on CLK rising edge.
CLK	Serial Clock Input	Master-generated timing reference; supports SPI modes 0 and 3; maximum 80 MHz frequency defines upper bound for instruction throughput.
/HOLD (IO3)	Hold Input / Quad I/O Pin	Pauses ongoing SPI transaction when asserted low (Standard/Dual only); becomes IO3 in Quad mode (QE=1), disabling HOLD function.
VCC	Power Supply	2.7–3.6 V single supply; powers internal charge pumps for erase/program; <1 µA standby current enables battery-backed retention.

Key Features

Feature	Design Value
Quad Enable (QE) Bit	Non-volatile Status Register-2 bit enabling IO2/IO3 functionality - required to activate Quad SPI; persistent across power cycles unless rewritten.
Continuous Read Mode	Configurable wrap lengths (8/16/32/64 bytes) with ≤8-clock address overhead - enables true XIP execution with deterministic latency.
Security Registers	Three 256-byte OTP-lockable registers - store cryptographic keys or calibration data immune to accidental overwrite or field reprogramming.
SFDP Register	JEDEC-standardized 256-byte parameter table - allows host MCU to auto-detect timing, voltage, and feature support without hard-coded assumptions.
Erase/Program Suspend	75h/7Ah instruction pair - halts active erase/program to service time-critical interrupts, then resumes from exact byte offset without data loss.
Unique 64-bit ID	Factory-programmed per-device serial number - enables secure device authentication, firmware binding, and traceability in production and field deployment.

Applications

Industrial PLC Firmware Storage	Automotive ADAS Boot Code
Use Scenario: Storing firmware images and runtime configuration tables in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Non-volatile code and parameter storage with 4KB sector granularity enabling independent update of control algorithms and calibration data. Use Value: 20-year data retention and 100,000 erase/program cycles ensure reliable operation over 15+ year equipment lifecycles without field replacement.	Use Scenario: Hosting boot code and sensor fusion firmware for camera/radar ECUs requiring fast startup and secure firmware validation. IC Role / Device Role / Timing Role: XIP-capable Quad SPI flash delivering 320 MB/s effective bandwidth to feed ARM Cortex-R5/R7 cores during cold boot. Use Value: Continuous Read Mode with 8-clock address overhead reduces boot time by >35% vs. standard SPI, meeting ASIL-B timing constraints.
Medical Infusion Pump UI	Smart Meter Firmware Vault
Use Scenario: Storing GUI assets, safety-critical alarm logic, and regulatory audit logs in Class II medical devices with strict EMC and reliability requirements. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage leveraging hardware /WP, OTP security registers, and 64-bit unique ID for FDA traceability. Use Value: Power-down current <1 µA extends battery life during standby; SFDP register enables automatic compatibility verification across firmware revisions.	Use Scenario: Holding encrypted firmware, tariff tables, and metering history in utility-grade smart meters deployed in remote, unattended locations. IC Role / Device Role / Timing Role: High-endurance flash supporting over-the-air firmware updates every 3–6 months while preserving 20-year meter lifetime data. Use Value: Uniform 4KB sectors allow atomic OTA patching without erasing full 64KB blocks - reducing update window and flash wear by 94%.

Industrial PLC Firmware Storage

Automotive ADAS Boot Code

Use Scenario: Storing firmware images and runtime configuration tables in programmable logic controllers operating in harsh factory environments.

IC Role / Device Role / Timing Role: Non-volatile code and parameter storage with 4KB sector granularity enabling independent update of control algorithms and calibration data.

Use Value: 20-year data retention and 100,000 erase/program cycles ensure reliable operation over 15+ year equipment lifecycles without field replacement.

Use Scenario: Hosting boot code and sensor fusion firmware for camera/radar ECUs requiring fast startup and secure firmware validation.

IC Role / Device Role / Timing Role: XIP-capable Quad SPI flash delivering 320 MB/s effective bandwidth to feed ARM Cortex-R5/R7 cores during cold boot.

Use Value: Continuous Read Mode with 8-clock address overhead reduces boot time by >35% vs. standard SPI, meeting ASIL-B timing constraints.

Medical Infusion Pump UI

Smart Meter Firmware Vault

Use Scenario: Storing GUI assets, safety-critical alarm logic, and regulatory audit logs in Class II medical devices with strict EMC and reliability requirements.

IC Role / Device Role / Timing Role: Secure, tamper-resistant storage leveraging hardware /WP, OTP security registers, and 64-bit unique ID for FDA traceability.

Use Value: Power-down current <1 µA extends battery life during standby; SFDP register enables automatic compatibility verification across firmware revisions.

Use Scenario: Holding encrypted firmware, tariff tables, and metering history in utility-grade smart meters deployed in remote, unattended locations.

IC Role / Device Role / Timing Role: High-endurance flash supporting over-the-air firmware updates every 3–6 months while preserving 20-year meter lifetime data.

Use Value: Uniform 4KB sectors allow atomic OTA patching without erasing full 64KB blocks - reducing update window and flash wear by 94%.

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial NOR flash applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MX25L6433FZNI-10G	64Mb density, 104MHz max clock, supports DTR mode; lacks SFDP register and OTP security registers.	Higher bandwidth but reduced configurability; no auto-discovery of timing parameters or secure key storage.	Preferred for cost-sensitive consumer applications where XIP latency is critical but security and field upgrade flexibility are secondary.
S25FL164K0XMFI010	64Mb density, 80MHz clock, supports Quad SPI and SFDP; includes 128-byte secure OTP but no 64-bit UID.	Similar feature set but missing unique device identification - limits traceability in regulated deployments.	Valid alternative where JEDEC-compliant SFDP and Quad SPI are required, but per-device identity is not mandated by certification standards.

Compared with MX25L6433FZNI-10G and S25FL164K0XMFI010, W25Q64CVZPSG uniquely combines JEDEC SFDP auto-configuration, 64-bit UID, and three OTP-locked security registers - making it the only option among the three qualified for medical and utility-grade firmware vaulting with full lifecycle traceability.

Availability

W25Q64CVZPSG is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS modules, medical infusion pumps, smart meters, and wireless gateway firmware storage requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.

Supply support for W25Q64CVZPSG 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 manufacturer specializing in specialty memory solutions, including serial flash, PSRAM, and mobile DRAM, serving industrial, automotive, and communications markets since 1987.

The W25Q series was designed specifically for embedded systems requiring high-reliability, low-pin-count, SPI-based code and data storage - balancing performance, security, and endurance in space-constrained PCB layouts.

FAQ

What is the package type and footprint of W25Q64CVZPSG?

W25Q64CVZPSG uses an 8-pad WSON 6×5-mm package (ZP code) with exposed thermal pad. Its footprint matches JEDEC MO-241AC, requiring no solder mask defined pads and supporting reflow profiles compliant with IPC/JEDEC J-STD-020. The package is RoHS-compliant and halogen-free, rated for industrial temperature range (-40°C to +85°C).

Does W25Q64CVZPSG support execute-in-place (XIP) operation?

Yes, W25Q64CVZPSG supports true XIP via Continuous Read Mode with configurable wrap lengths (8/16/32/64 bytes) and ≤8-clock instruction overhead for address setup. When used with Quad SPI Fast Read instructions (EBh), it delivers deterministic access latency suitable for direct code execution on Cortex-M7/M33 and RISC-V cores without local RAM buffering.

How is Quad SPI mode enabled on W25Q64CVZPSG?

Quad SPI mode on W25Q64CVZPSG is enabled by setting the non-volatile Quad Enable (QE) bit in Status Register-2 using the Write Status Register (01h) instruction. Once QE=1, /WP and /HOLD pins become IO2 and IO3 respectively, and Quad I/O instructions (e.g., EBh, E7h) become active. The change persists across power cycles until explicitly cleared.

What write protection mechanisms does W25Q64CVZPSG provide?

W25Q64CVZPSG provides layered write protection: hardware via active-low /WP pin (when QE=0), software via Status Register BP2–BP0, TB, SEC, and CMP bits, and OTP lock via SRP0/SRP1. These can be combined to protect individual 4KB sectors, top/bottom halves, or the entire array - with SRP bits preventing further status register modification once set.

Is W25Q64CVZPSG compatible with standard SPI controllers?

Yes, W25Q64CVZPSG is fully backward-compatible with standard SPI controllers (Mode 0 and Mode 3). It uses /CS, CLK, DI, and DO pins identically to legacy SPI flash, requiring no hardware changes. Dual/Quad modes are optional enhancements activated only when the host issues corresponding instructions and configures the QE bit.

W25Q64CVZPSG Specifications

Product attributes: Attribute value

Manufacturer:: Winbond Electronics Corporation

Series:: SpiFlash®

Package/Case:: 8-WDFN Exposed Pad

Packaging:: Tube

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: FLASH

Technology:: FLASH - NOR

Memory Size:: 64Mbit

Memory Organization:: 8M x 8

Memory Interface:: SPI - Quad I/O

Clock Frequency:: 80 MHz

Write Cycle Time - Word, Page:: 50µs, 3ms

Access Time:: 6 ns

Voltage - Supply:: 2.7V ~ 3.6V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-WSON (6x5)

W25Q64CVZPSG FAQ

1.How can I place an order for W25Q64CVZPSG through Aetrix?

Please submit a Request for Quotation (RFQ) for W25Q64CVZPSG 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 W25Q64CVZPSG reliable?

The price and inventory of W25Q64CVZPSG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q64CVZPSG is usually 5 days.

3.What payment methods are accepted for W25Q64CVZPSG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q64CVZPSG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for W25Q64CVZPSG?

W25Q64CVZPSG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your W25Q64CVZPSG 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 W25Q64CVZPSG?

For technical support, including W25Q64CVZPSG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q64CVZPSG requirements.

6.How does Aetrix verify that W25Q64CVZPSG is sourced from the original manufacturer or authorized distributors?

All W25Q64CVZPSG 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 W25Q64CVZPSG meets industry standards.

7.What is the process for return or replacement of W25Q64CVZPSG?

All W25Q64CVZPSG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q64CVZPSG, 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 W25Q64CVZPSG part is unused and in its original packaging.

Return procedure for W25Q64CVZPSG:

1.Submit a request within 90 days.

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

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