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Winbond Electronics Corporation W74M12JWZPIQ
- Part No.:
- W74M12JWZPIQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
W74M12JWZPIQ.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:539
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Product details
Overview
W74M12JWZPIQ from Winbond is a 128Mb (16MB) secure authentication flash memory IC with integrated HMAC-SHA-256 crypto accelerator and four independent monotonic flash counters, each HMAC-signed with unique secret keys; supports anti-cloning, IP protection, and root-of-trust functions in industrial control and smart home systems.
For engineers reviewing the W74M12JWZPIQ datasheet, W74M12JWZPIQ pinout, W74M12JWZPIQ application, or W74M12JWZPIQ equivalent, this page delivers verified package mapping (WSON-8, 8×6 mm), authenticated security features, monotonic counter behavior, voltage rating (1.8V), and real-world use cases including PCBA anti-copy and firmware integrity verification.
Technical Context
The W74M12JWZPIQ implements a hardware-accelerated HMAC-SHA-256 engine for cryptographic signing and verification, enabling secure challenge-response protocols without host CPU overhead. Its four monotonic counters are stored in dedicated flash sectors and signed at write time using per-counter secret keys.
Each counter enforces strict increment-only behavior and binds timestamped data to message integrity; counter reads return both value and HMAC signature, allowing remote verification of authenticity and freshness without exposing secrets.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Density | 128Mb (16MB) - provides sufficient space for secure firmware images, keys, and audit logs in resource-constrained IoT edge nodes. |
| Supply Voltage | 1.8V ±0.1V - enables direct integration with low-voltage SoCs and battery-powered accessories without level-shifting. |
| Crypto Engine | HMAC-SHA-256 hardware accelerator - offloads cryptographic operations from host processor, reducing latency and power consumption during authentication. |
| Monotonic Counters | 4 independent counters - each with unique secret key and HMAC signature, supporting separate lifecycle tracking for firmware updates, calibration cycles, or usage audits. |
| Package | WSON-8 (8×6 mm, 0.5 mm pitch) - surface-mount, moisture-sensitive package compatible with standard reflow profiles and high-density PCB layouts. |
| Security Function | Counter value + HMAC signature output - enables remote verification of counter integrity and resistance to replay attacks without exposing secret keys. |
Pinout & Package
W74M12JWZPIQ is housed in an 8-pin WSON package (8×6 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad. Pinout conforms to standard serial flash pin assignment for SPI interface compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 / /CS | Chip Select | Active-low enable for SPI command decoding; must be asserted before clock/data activity. |
| 2 / DO | Data Output | Serial data output (SO) for standard SPI read and status register access. |
| 3 / /WP | Write Protect | Hardware lock for status register and monotonic counter configuration; tied high to disable protection. |
| 4 / GND | Ground | Reference return path for all I/O and core logic; connected to PCB ground plane. |
| 5 / SI | Data Input | Serial data input (SI) for write, program, and crypto command transmission. |
| 6 / SCLK | Serial Clock | Input clock synchronizing all SPI transactions; max frequency 104 MHz (quad mode). |
| 7 / /HOLD | Hold Control | Pauses ongoing SPI transfer without deselecting device; used for multi-master arbitration. |
| 8 / VCC | Power Supply | 1.8V core and I/O supply; requires local 1µF ceramic decoupling capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Four HMAC-signed monotonic counters | Enables independent, tamper-evident lifecycle tracking for firmware versioning, calibration events, and usage metrics without shared secrets. |
| Hardware HMAC-SHA-256 accelerator | Reduces authentication latency to <100 µs per operation and eliminates software-side cryptographic stack vulnerabilities. |
| Secure counter read with signature | Returns counter value + HMAC in single read transaction, enabling remote verification without exposing keys or requiring trusted execution environment. |
| 1.8V operation with SPI interface | Direct interoperability with modern ultra-low-power microcontrollers and application processors lacking 3V I/O support. |
| WSON-8 package (8×6 mm) | Minimizes board area while maintaining thermal performance and manufacturability in automated SMT lines. |
Applications
| PCBA Anti-Copy Protection | Industrial Firmware Integrity |
|---|---|
Use Scenario: Prevent unauthorized replication of printed circuit board assemblies by embedding unique cryptographic identity and usage history in W74M12JWZPIQ. IC Role / Device Role / Timing Role: Root-of-trust anchor storing HMAC-signed monotonic counters that track manufacturing steps, calibration timestamps, and field deployment events. Use Value: Detects cloned boards via mismatched counter signatures and prevents firmware reuse across unlicensed units. | Use Scenario: Ensure firmware updates in programmable logic controllers (PLCs) and HMIs are cryptographically validated before execution. IC Role / Device Role / Timing Role: Secure non-volatile storage for update manifests and HMAC signatures, with monotonic counters enforcing one-time update application. Use Value: Blocks rollback attacks and unauthorized patch injection by binding update validity to signed, increment-only counters. |
| Smart Home Module Authentication | Mobile Accessory Trust Anchor |
Use Scenario: Authenticate third-party smart bulbs, sensors, or hubs before granting network access or executing vendor-specific commands. IC Role / Device Role / Timing Role: Cryptographic identity provider using HMAC-SHA-256 challenge-response and monotonic counter-based freshness checks. Use Value: Rejects spoofed devices by verifying signed counter values, preventing man-in-the-middle or device impersonation attacks. | Use Scenario: Verify OEM authenticity of USB-C cables, wireless earbud chargers, and camera lens adapters before enabling full feature sets. IC Role / Device Role / Timing Role: Tamper-resistant credential store delivering signed counter values as proof of first-use and firmware revision compliance. Use Value: Enables feature gating (e.g., fast charging, spatial audio) only after successful W74M12JWZPIQ authentication and counter validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure authentication flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Adesto ATXP032 | 32Mb density, no hardware HMAC engine; relies on host MCU for SHA-256 computation; single monotonic counter. | Limited to simpler authentication workflows where host has crypto capability and lower storage needs apply. | Choose when cost sensitivity outweighs need for hardware-accelerated crypto and multiple independent counters. |
| Infineon SLB9670 | TPM 2.0-compliant discrete Trusted Platform Module; includes full RSA/ECC engine, PCR registers, and secure boot support - not a serial flash replacement. | Targets full-stack platform trust (e.g., x86/ARM server boot) rather than embedded firmware/IP protection at module level. | Choose when system-level attestation, measured boot, or OS-integrated TPM services are required beyond flash-based authentication. |
Compared with ATXP032 and SLB9670, W74M12JWZPIQ uniquely combines 128Mb secure flash storage, hardware HMAC-SHA-256 acceleration, and four independent signed monotonic counters in a compact WSON-8 package - optimized for module-level anti-cloning and firmware integrity in cost- and space-constrained IoT endpoints.
Availability
W74M12JWZPIQ is available at Aetrix Electronics and suitable for industrial control, smart home, and mobile accessory designs requiring stable component supply, long-term security lifecycle management, and qualified automotive-grade traceability.
Supply support for W74M12JWZPIQ 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 Corp. is a Taiwan-based integrated IC company specializing in design, fabrication, and marketing of low-to-medium-density memory solutions, operating its own 12-inch wafer fab.
The W74M product line is engineered specifically for secure code and credential storage in IoT edge devices, delivering hardware-enforced monotonicity and cryptographic authenticity without host processor dependency.
FAQ
What security functions does the W74M12JWZPIQ provide beyond standard flash memory?
The W74M12JWZPIQ integrates a hardware HMAC-SHA-256 accelerator and four independent monotonic flash counters, each signed with a unique secret key. Unlike standard flash, it enables cryptographic verification of counter values and timestamps, supports anti-cloning, IP protection, and root-of-trust establishment - all without exposing secrets during read operations. This makes W74M12JWZPIQ suitable for secure firmware storage and device authentication in untrusted environments.
Does the W74M12JWZPIQ require external cryptographic support from the host MCU?
No, the W74M12JWZPIQ performs HMAC-SHA-256 signing and verification entirely in hardware. The host MCU sends commands and receives signed counter values or authentication responses directly - no software crypto library, key management, or computational overhead is needed. This independence makes W74M12JWZPIQ ideal for resource-limited microcontrollers and ensures consistent, deterministic security behavior across diverse host platforms.
How is monotonicity enforced on the W74M12JWZPIQ's counters?
Each of the four monotonic counters in the W74M12JWZPIQ can only be incremented, never decremented or reset. Writes are validated by internal logic before committing, and every counter value is accompanied by an HMAC signature generated using its dedicated secret key. Attempts to overwrite with a lower or equal value are rejected, and the signature ensures any tampered value is immediately detectable during verification - guaranteeing immutable, auditable state progression in W74M12JWZPIQ.
What package type and footprint does the W74M12JWZPIQ use?
The W74M12JWZPIQ uses an 8-pin WSON package measuring 8×6 mm with 0.5 mm pitch and an exposed thermal pad. It is RoHS-compliant and compatible with standard reflow soldering profiles. This compact, surface-mount footprint supports high-density PCB layouts in space-constrained IoT modules and mobile accessories where the W74M12JWZPIQ is commonly deployed.
Can the W74M12JWZPIQ replace standard SPI flash in existing designs without layout changes?
Yes - the W74M12JWZPIQ shares the same WSON-8 (8×6 mm) package, pinout, and SPI command set as Winbond's standard W25Q128JV serial flash. It is designed for drop-in replacement in most cases, provided the host firmware is updated to leverage HMAC and monotonic counter commands. No PCB redesign is needed, making W74M12JWZPIQ a seamless upgrade path to add hardware-enforced security to legacy flash-based systems.
W74M12JWZPIQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 104 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 1.7V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (6x5)
W74M12JWZPIQ FAQ
1.How can I place an order for W74M12JWZPIQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W74M12JWZPIQ 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 W74M12JWZPIQ reliable?
The price and inventory of W74M12JWZPIQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W74M12JWZPIQ is usually 5 days.
3.What payment methods are accepted for W74M12JWZPIQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W74M12JWZPIQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W74M12JWZPIQ?
W74M12JWZPIQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W74M12JWZPIQ 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 W74M12JWZPIQ?
For technical support, including W74M12JWZPIQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W74M12JWZPIQ requirements.
6.How does Aetrix verify that W74M12JWZPIQ is sourced from the original manufacturer or authorized distributors?
All W74M12JWZPIQ 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 W74M12JWZPIQ meets industry standards.
7.What is the process for return or replacement of W74M12JWZPIQ?
All W74M12JWZPIQ units undergo pre-shipment inspection (PSI). If there is an issue with W74M12JWZPIQ, 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 W74M12JWZPIQ part is unused and in its original packaging.
Return procedure for W74M12JWZPIQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W74M12JWZPIQ Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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