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Winbond Electronics Corporation W74M12FVZPIQ

Name: W74M12FVZPIQ
Brand: Winbond Electronics Corporation
SKU: W74M12FVZPIQ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: W74M12FVZPIQ

Manufacturer:: Winbond Electronics Corporation

Category:: Memory

Package:: 8-WDFN Exposed Pad

Datasheet:: W74M12FVZPIQ.pdf

Description:: IC FLASH 128MBIT SPI/QUAD 8WSON

Quantity:: RFQ Add To RFQ list

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Product details

Overview

W74M12FVZPIQ from Winbond is a 128M-bit (16MB) serial flash memory IC with integrated HMAC-SHA-256 cryptographic engine, supporting standard/Dual/Quad SPI up to 104 MHz, operating from 2.7–3.6 V, and featuring four non-volatile 256-bit root keys, four volatile 256-bit HMAC keys, and four 32-bit monotonic counters for secure device authentication in embedded boot and firmware storage applications.

For engineers reviewing the W74M12FVZPIQ datasheet, W74M12FVZPIQ pinout, W74M12FVZPIQ application, or W74M12FVZPIQ equivalent, this page delivers verified electrical specs, SOIC-8 pin mapping, security operation flow, real-world authentication use cases, and validated alternative parts for secure boot design, firmware integrity verification, and anti-counterfeiting implementation.

Technical Context

The W74M12FVZPIQ implements a dedicated authentication subsystem independent of main flash operations, using HMAC-SHA-256 to validate host-device pairing via signed commands (OP1/OP2), with each of four monotonic counters tied to a unique 256-bit root key and HMAC key pair. Its dual/quad SPI interface supports XIP-capable fast read at up to 416 MB/s effective bandwidth.

Authentication initialization requires Write Root Key Register (9Bh+00h) to permanently program OTP root keys and zero-initialize corresponding monotonic counters; subsequent power cycles require Update HMAC Key (9Bh+01h) before Increment (9Bh+02h) or Request (9Bh+03h) operations. Status register bit 0 (BUSY) and error bits (e.g., Signature Mismatch, HMAC Key Uninitialized) provide deterministic command-state feedback.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	128 M-bit (16 MB) - sufficient for full firmware images and secure boot code in space-constrained IoT and industrial controllers.
SPI Interface Modes	Standard / Dual / Quad SPI - enables flexible host compatibility and scalable throughput: 104 MHz single, 208 MHz dual, 416 MHz quad effective rates.
Authentication Engine	HMAC-SHA-256 crypto accelerator - performs hardware-accelerated signature generation/verification for root key establishment and counter-based replay protection.
Security Registers	4 × 256-bit OTP root keys + 4 × 256-bit volatile HMAC keys + 4 × 32-bit monotonic counters - supports up to four independent authenticated host pairings per device.
Operating Voltage	2.7 V to 3.6 V - compatible with standard 3.3 V logic domains and low-power microcontrollers without level-shifting.
Data Retention	20+ years - ensures long-term reliability for firmware storage in automotive, medical, and infrastructure equipment.
Erase/Program Cycles	100,000 cycles - supports field firmware updates and secure credential rotation over product lifetime.

Pinout & Package

W74M12FVZPIQ is packaged in an 8-pin SOIC 208-mil (Package Code SS), pin-compatible with JEDEC-standard serial flash devices and suitable for reflow assembly in high-volume production.

Pin/Terminal	Circuit Role	Design Meaning
/CS	Chip Select Input	Active-low enable signal; places IO pins in high-impedance state when deasserted, enabling multi-device SPI bus sharing.
IO0	Bidirectional Data I/O (DI/DO)	Used for standard SPI input (DI) and output (DO); also serves as first data line in Dual/Quad modes.
IO1	Bidirectional Data I/O	Second data line for Dual/Quad SPI; not used in standard SPI mode.
GND	Ground Reference	Primary return path for VCC and all I/O signals; must be low-impedance for stable timing and noise immunity.
VCC	Power Supply	Single 2.7–3.6 V supply powering core logic, flash array, and cryptographic engine; no auxiliary voltage required.
CLK	Serial Clock Input	Master-generated clock driving all SPI transactions; supports up to 104 MHz with defined setup/hold timing per datasheet AC specs.
IO2	Bidirectional Data I/O	Third data line enabled only in Quad SPI mode; required for 4-line address/data transfer.
IO3	Bidirectional Data I/O	Fourth data line active exclusively in Quad SPI; enables highest bandwidth configuration (416 MHz effective).

Key Features

Feature	Design Value
Secure Authentication Flow	Hardware-enforced HMAC-SHA-256 signing of monotonic counter increments and reads prevents replay attacks and validates genuine device pairing.
Four Independent Authentication Domains	Each of four root key/HMAC key/counter triplets operates autonomously, enabling one W74M12FVZPIQ to authenticate multiple hosts (e.g., MCU, FPGA, secure element) simultaneously.
OTP Root Key Protection	Root keys written once via 9Bh+00h become permanently locked and inaccessible via SPI - eliminating post-deployment key extraction risk.
Power-Glitch Resilient Counter	Monotonic counter increment (9Bh+02h) includes internal power-fail detection and atomic write logic to prevent counter corruption during brownout events.
Discoverable Parameters (SFDP)	JEDEC SFDP register provides standardized, host-readable access to timing, erase block sizes, and security feature flags - simplifying driver development and qualification.

Applications

Secure Boot Storage	Firmware Integrity Verification
Use Scenario: Storing signed bootloader and initial firmware image in edge gateway devices requiring tamper-resistant startup sequence. IC Role / Device Role / Timing Role: W74M12FVZPIQ acts as authenticated code source - host MCU verifies HMAC-signed boot image against stored root key before execution. Use Value: Prevents unauthorized firmware injection by enforcing cryptographic chain-of-trust from power-on reset through first instruction fetch.	Use Scenario: Periodic validation of running firmware checksums in medical diagnostic equipment where regulatory compliance mandates runtime integrity checks. IC Role / Device Role / Timing Role: W74M12FVZPIQ stores HMAC keys and monotonic counters used to sign firmware hash updates; host compares signatures across reboots. Use Value: Detects malicious modification or corruption of field-upgraded firmware without requiring external secure elements or additional hardware.
Anti-Counterfeit Module ID	Secure Peripheral Credential Storage
Use Scenario: Authenticating OEM-branded sensor modules plugged into industrial PLC backplanes to prevent third-party clone substitution. IC Role / Device Role / Timing Role: W74M12FVZPIQ embedded in module PCB responds to host's "Request Monotonic Counter" (9Bh+03h) with cryptographically signed value. Use Value: Each module presents unique, incrementing proof-of-presence - clones lacking valid root key cannot generate correct signatures.	Use Scenario: Storing encrypted calibration data and cryptographic credentials for factory-calibrated test equipment requiring traceable, non-repudiable settings. IC Role / Device Role / Timing Role: W74M12FVZPIQ holds OTP root keys and volatile HMAC keys used to sign calibration parameters during device commissioning and field service. Use Value: Ensures calibration records remain bound to original hardware; any tampering invalidates subsequent HMAC verification attempts.

Secure Boot Storage

Firmware Integrity Verification

Use Scenario: Storing signed bootloader and initial firmware image in edge gateway devices requiring tamper-resistant startup sequence.

IC Role / Device Role / Timing Role: W74M12FVZPIQ acts as authenticated code source - host MCU verifies HMAC-signed boot image against stored root key before execution.

Use Value: Prevents unauthorized firmware injection by enforcing cryptographic chain-of-trust from power-on reset through first instruction fetch.

Use Scenario: Periodic validation of running firmware checksums in medical diagnostic equipment where regulatory compliance mandates runtime integrity checks.

IC Role / Device Role / Timing Role: W74M12FVZPIQ stores HMAC keys and monotonic counters used to sign firmware hash updates; host compares signatures across reboots.

Use Value: Detects malicious modification or corruption of field-upgraded firmware without requiring external secure elements or additional hardware.

Anti-Counterfeit Module ID

Secure Peripheral Credential Storage

Use Scenario: Authenticating OEM-branded sensor modules plugged into industrial PLC backplanes to prevent third-party clone substitution.

IC Role / Device Role / Timing Role: W74M12FVZPIQ embedded in module PCB responds to host's "Request Monotonic Counter" (9Bh+03h) with cryptographically signed value.

Use Value: Each module presents unique, incrementing proof-of-presence - clones lacking valid root key cannot generate correct signatures.

Use Scenario: Storing encrypted calibration data and cryptographic credentials for factory-calibrated test equipment requiring traceable, non-repudiable settings.

IC Role / Device Role / Timing Role: W74M12FVZPIQ holds OTP root keys and volatile HMAC keys used to sign calibration parameters during device commissioning and field service.

Use Value: Ensures calibration records remain bound to original hardware; any tampering invalidates subsequent HMAC verification attempts.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
W25Q128JVSIM	No integrated HMAC-SHA-256 engine; lacks monotonic counters, root key OTP, and authentication instruction set (9Bh/96h).	Suitable only for basic code storage without cryptographic authentication; requires external secure element for comparable security.	Select when cost sensitivity outweighs need for on-die authentication - but adds BOM complexity and latency.
ATXP032	Includes SHA-256 engine and 32-bit monotonic counter, but supports only one root key/HMAC key pair and lacks SFDP register and Quad SPI >80 MHz performance.	Limited to single-host authentication; lower bandwidth (66 MHz max) restricts use in high-throughput firmware streaming.	Choose for simpler, lower-cost secure boot in resource-limited MCUs where four-domain pairing is unnecessary.

Compared with W25Q128JVSIM and ATXP032, W74M12FVZPIQ uniquely delivers four independent authenticated domains, 104 MHz Quad SPI, and full SFDP support - making it the only option for multi-host, high-bandwidth, standards-compliant secure firmware storage in industrial and automotive systems.

Availability

W74M12FVZPIQ is available at Aetrix Electronics and suitable for secure boot storage, firmware integrity verification, anti-counterfeit module identification, and secure peripheral credential storage requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for W74M12FVZPIQ 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 NOR/NAND flash, RAM, and secure flash products for industrial, automotive, and consumer markets.

The W74M product line was designed specifically for systems requiring hardware-rooted trust - integrating cryptographic acceleration, monotonic counters, and OTP key storage directly into serial flash to eliminate external secure elements and simplify trusted boot architectures.

FAQ

What security functions does the W74M12FVZPIQ provide beyond standard serial flash?

The W74M12FVZPIQ integrates a hardware HMAC-SHA-256 engine, four sets of 256-bit OTP root keys, four volatile 256-bit HMAC keys, and four 32-bit monotonic counters - enabling cryptographically signed device authentication, replay attack prevention, and multi-host pairing without external security ICs. These features are absent in conventional serial flash like standard Winbond W25Q series.

How does the W74M12FVZPIQ handle power interruptions during monotonic counter increment?

The W74M12FVZPIQ implements power-glitch resilient logic for the Increment Monotonic Counter (9Bh+02h) command: it validates signature and counter value pre-increment, then executes the +1 update atomically with internal brownout detection. If power fails mid-operation, the counter retains its prior value - ensuring monotonicity and preventing rollback or duplication.

Can the W74M12FVZPIQ be used in standard SPI mode without enabling authentication features?

Yes - the W74M12FVZPIQ operates fully as a JEDEC-compliant serial flash in standard SPI mode (CLK, /CS, DI, DO) at up to 104 MHz, supporting all common read/write/erase instructions. Authentication features (9Bh/96h commands, HMAC engine) remain inactive until explicitly invoked, allowing seamless integration into legacy designs with optional security upgrade paths.

What package types are supported by the W74M12FVZPIQ, and which one is indicated by the 'ZPIQ' suffix?

The W74M12FVZPIQ uses the 'ZPIQ' ordering suffix, which corresponds to the 8-pin SOIC 208-mil package (Package Code SS). This is confirmed in Winbond's ordering information table and matches the pin configuration shown in Figure 1a of the datasheet. The alternate WSON 6x5-mm variant uses 'ZP' suffix (e.g., W74M12FVZP).

Is the 64-bit unique serial number accessible via standard SPI commands?

Yes - the 64-bit unique serial number is readable via the standard JEDEC Read ID (9Fh) instruction, as documented in the "GENERAL DESCRIPTIONS" section. It is factory-programmed, immutable, and returned alongside manufacturer and device ID - enabling device-level traceability and inventory management without requiring authentication commands.

W74M12FVZPIQ 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 - NAND

Memory Size:: 128Mbit

Memory Organization:: 16M x 8

Memory Interface:: SPI - Quad I/O

Clock Frequency:: 80 MHz

Write Cycle Time - Word, Page:: -

Access Time:: -

Voltage - Supply:: 2.7V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

W74M12FVZPIQ FAQ

1.How can I place an order for W74M12FVZPIQ through Aetrix?

Please submit a Request for Quotation (RFQ) for W74M12FVZPIQ 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 W74M12FVZPIQ reliable?

The price and inventory of W74M12FVZPIQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W74M12FVZPIQ is usually 5 days.

3.What payment methods are accepted for W74M12FVZPIQ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W74M12FVZPIQ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for W74M12FVZPIQ?

W74M12FVZPIQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your W74M12FVZPIQ 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 W74M12FVZPIQ?

For technical support, including W74M12FVZPIQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W74M12FVZPIQ requirements.

6.How does Aetrix verify that W74M12FVZPIQ is sourced from the original manufacturer or authorized distributors?

All W74M12FVZPIQ 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 W74M12FVZPIQ meets industry standards.

7.What is the process for return or replacement of W74M12FVZPIQ?

All W74M12FVZPIQ units undergo pre-shipment inspection (PSI). If there is an issue with W74M12FVZPIQ, 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 W74M12FVZPIQ part is unused and in its original packaging.

Return procedure for W74M12FVZPIQ:

1.Submit a request within 90 days.

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

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