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Winbond Electronics Corporation W25Q256JVMIQ TR
- Part No.:
- W25Q256JVMIQ TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WLGA Exposed Pad
- Datasheet:
-
W25Q256JVMIQ TR.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 8WFLGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
W25Q256JVMIQ TR from Winbond is a 256M-bit (32MB) serial NOR flash memory supporting Standard/Dual/Quad SPI interfaces, 133MHz clock rate, 4KB uniform sectors, and industrial temperature range (–40°C to +85°C). It enables execute-in-place (XIP) code execution, data logging, and firmware storage in space-constrained embedded systems.
For engineers reviewing the W25Q256JVMIQ TR datasheet, W25Q256JVMIQ TR pinout, W25Q256JVMIQ TR application, or W25Q256JVMIQ TR equivalent, this page delivers verified pin functions, JEDEC-compliant ID support, Quad Enable (QE) configuration, 4-byte addressing capability, and hardware /RESET availability in SOIC/TFBGA packages.
Technical Context
The W25Q256JVMIQ TR implements a flexible SPI interface with three operational modes: Standard (DI/DO), Dual (IO0/IO1), and Quad (IO0–IO3), where IO2 and IO3 are remapped from /WP and /HOLD upon setting the non-volatile Quad Enable (QE) bit in Status Register-2. It supports both 3-byte and 4-byte address modes, with 4-byte mode enabled via B7h instruction and persistent via ADP bit.
Its architecture includes 131,072 pages of 256 bytes each, organized into 8,192 erasable 4KB sectors and 512 erasable 64KB blocks. Erase/program suspend-resume functionality, volatile/non-volatile status register bits (BP0–BP3, TB, CMP, SRP), and three 256-byte OTP-locked security registers provide robust data integrity and field-upgrade safety.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 M-bit (32 MB) - supports full firmware images for mid-tier microcontrollers and boot code for application processors. |
| SPI Clock Rate | Up to 133 MHz - enables 532 MB/s effective Quad I/O throughput for fast XIP or code shadowing. |
| Address Mode | 3-Byte & 4-Byte selectable - 4-byte mode required to access full 32MB address space without extended register overhead. |
| Erase Granularity | 4KB sectors (uniform), 32KB/64KB blocks, chip erase - allows fine-grained firmware partitioning and OTA update safety. |
| Endurance & Retention | 100,000 program-erase cycles per sector; >20-year data retention - suitable for industrial logging and infrequently updated configuration storage. |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic domains and tolerant of brown-out conditions in battery-backed systems. |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade operation without derating or thermal management. |
| Power-down Current | <1 µA (typ.) - enables ultra-low-power sleep states in portable and energy-harvested devices. |
Pinout & Package
W25Q256JVMIQ TR is supplied in an 8-pad WFLGA 6×5-mm package (Package Code M), with bottom-side pads and no exposed thermal pad. Pin functions are identical to WSON 8x6-mm (Code E) but with reduced footprint and finer pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable: high = device deselected (high-Z DO/IOs, standby current); low = active communication window. |
| 2 DO (IO1) | Data Output / Bidirectional I/O | Standard SPI output only; becomes bidirectional IO1 in Dual/Quad mode - used for read data and command response. |
| 3 /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware write lock for status register when QE=0; remapped to IO2 in Quad mode (QE=1). |
| 4 GND | Ground Reference | Primary signal and power return path; must be low-impedance for stable SPI timing and noise immunity. |
| 5 DI (IO0) | Data Input / Bidirectional I/O | Standard SPI input only; becomes bidirectional IO0 in Dual/Quad mode - carries instructions, addresses, and write data. |
| 6 CLK | Serial Clock Input | Master-generated edge-triggered clock; supports SPI modes 0 and 3; timing-critical for setup/hold compliance. |
| 7 /HOLD (IO3) | Hold Input / Bidirectional I/O | Pauses ongoing SPI transaction when low (CS active); remapped to IO3 in Quad mode (QE=1); not available if QE=1 and /HOLD unused. |
| 8 VCC | Power Supply | Single 2.7–3.6 V supply; decoupling capacitor (≥100 nF) required near pin for transient current stability during reads/writes. |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI with QE bit | Non-volatile QE bit in Status Register-2 enables permanent IO2/IO3 remapping - eliminates runtime reconfiguration risk across power cycles. |
| 4-byte addressing | ADP bit controls default power-on address mode; B7h/E9h instructions allow dynamic switching - simplifies migration from 128M-bit predecessors. |
| Erase/Program Suspend | 75h/7Ah instructions pause background erase/write to service urgent reads - essential for real-time systems with mixed latency requirements. |
| Security Registers | Three 256-byte OTP-locked registers store cryptographic keys or calibration data - prevents unauthorized readback even after full chip erase. |
| Individual Block Lock | 36h/39h instructions lock/unlock specific 4KB sectors - enables secure bootloader partitioning and field-upgrade isolation. |
| JEDEC ID & SFDP | 9Fh returns JEDEC manufacturer/device ID; 5Ah reads Serial Flash Discoverable Parameters - enables automatic driver initialization in Linux/Bare Metal. |
Applications
| Industrial PLC Firmware Storage | Medical Device Bootloader |
|---|---|
|
Use Scenario: Storing certified bootloader and application firmware in DIN-rail mounted programmable logic controllers with no external memory controller. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP-capable Quad SPI interface; provides deterministic <50 ns random read latency at 133 MHz. Use Value: Eliminates need for parallel NOR or NAND + controller; reduces BOM count and PCB area while meeting IEC 61131-3 certification requirements for firmware integrity. |
Use Scenario: Secure storage of FDA-approved boot code and calibration parameters in portable ultrasound and infusion pumps. IC Role / Device Role / Timing Role: Trusted execution root with OTP-locked security registers and individual sector locking for regulatory audit trails. Use Value: Enables cryptographic signature verification at boot and prevents tampering of critical calibration data - satisfies ISO 13485 traceability mandates. |
| Automotive Infotainment Head Unit | Smart Energy Meter Firmware |
|
Use Scenario: Hosting Linux kernel, filesystem, and UI assets in AEC-Q100-compliant infotainment modules with thermal cycling exposure. IC Role / Device Role / Timing Role: High-bandwidth code/data repository using Fast Read Quad I/O (6Bh) at 133 MHz - sustains >60 MB/s sequential read for GUI rendering. Use Value: Replaces slower eMMC in cost-sensitive designs while maintaining –40°C to +85°C operation and 100K-cycle endurance for frequent OTA updates. |
Use Scenario: Storing AMI firmware, tariff tables, and encrypted metering logs in utility-grade smart meters deployed in outdoor enclosures. IC Role / Device Role / Timing Role: Long-life parameter storage with >20-year data retention and hardware /WP protection against grid-induced voltage transients. Use Value: Guarantees 15+ year field deployment without refresh; supports DLMS/COSEM over HAN with secure firmware rollback prevention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L25645GMI-10G | 256Mb, 104MHz max clock, no hardware /RESET pin in 8-pin SOIC/WSON; lacks SFDP register and 4-byte mode persistence (ADP bit). | Requires software-managed address mode switching; unsuitable for systems needing guaranteed 4-byte default on power-up. | Select W25Q256JVMIQ TR when ADP-controlled 4-byte boot or JEDEC SFDP auto-configuration is required. |
| S25FL256SAGMFI001 | 256Mb, 80MHz clock, supports HyperBus interface (not SPI-only); includes built-in ECC and configurable dummy cycles. | Higher pin count (24-ball BGA), larger footprint; targets high-reliability aerospace/defense where ECC is mandatory. | Select W25Q256JVMIQ TR for SPI-native designs prioritizing pin count, cost, and industrial temp compliance over ECC. |
Compared with MX25L25645GMI-10G, W25Q256JVMIQ TR offers superior 4-byte address control and JEDEC standardization; versus S25FL256SAGMFI001, it delivers lower system cost and smaller PCB area at the expense of ECC and HyperBus compatibility.
Availability
W25Q256JVMIQ TR is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, automotive infotainment, and smart metering applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for W25Q256JVMIQ 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 memory solutions, including SPI NOR/NAND flash, RAM, and mobile DRAM, serving industrial, automotive, and consumer markets since 1987.
The W25Q series is designed for embedded systems demanding high-speed, low-power, and secure code/data storage - optimized for XIP, OTA updates, and regulatory-compliant firmware integrity in harsh environments.
FAQ
What is the package type and footprint of W25Q256JVMIQ TR?
W25Q256JVMIQ TR uses an 8-pad WFLGA 6×5-mm package (Package Code M), with a 0.5 mm pitch and no exposed thermal pad. Its footprint matches Winbond's WSON 8x6-mm (Code E) electrically but occupies less board area - ideal for compact IoT and portable medical devices where space is constrained.
Does W25Q256JVMIQ TR support hardware reset, and which packages include /RESET?
W25Q256JVMIQ TR does not include a dedicated /RESET pin - that function is only available in SOIC-16 (Package Code F) and TFBGA (Codes B/C) variants. The WFLGA 6×5-mm package (M) relies solely on software reset (66h + 99h) or power-cycle recovery, making it suitable for systems where hardware reset is managed externally or unnecessary.
How is Quad SPI enabled on W25Q256JVMIQ TR, and is the setting retained after power loss?
Quad SPI is enabled by setting the Quad Enable (QE) bit in Status Register-2 of W25Q256JVMIQ TR. This bit is non-volatile and retains its state across power cycles, ensuring consistent IO2/IO3 remapping without runtime reconfiguration. The /WP pin becomes IO2 and /HOLD becomes IO3 only when QE = 1.
Can W25Q256JVMIQ TR operate in 4-byte address mode immediately after power-up?
Yes - W25Q256JVMIQ TR supports persistent 4-byte addressing via the ADP (Power-Up Address Mode) bit in Status Register-3. When ADP = 1, the device powers up directly in 4-byte mode, eliminating boot-time address mode switching and simplifying initialization in Linux or RTOS environments requiring full 32MB access.
What security mechanisms does W25Q256JVMIQ TR provide for firmware protection?
W25Q256JVMIQ TR provides layered security: hardware /WP pin lock, non-volatile status register protection (SRP/SRL), top/bottom/complement array locking, individual 4KB sector locking (36h/39h), and three 256-byte OTP-locked security registers. These features collectively prevent unauthorized firmware overwrite, cloning, or reverse engineering in certified medical and industrial deployments.
W25Q256JVMIQ TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-WLGA Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 256Mbit
- Memory Organization:
- 32M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- 3ms
- Access Time:
- 6 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WFLGA (6x5)
W25Q256JVMIQ TR FAQ
1.How can I place an order for W25Q256JVMIQ TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q256JVMIQ 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 W25Q256JVMIQ TR reliable?
The price and inventory of W25Q256JVMIQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q256JVMIQ TR is usually 5 days.
3.What payment methods are accepted for W25Q256JVMIQ TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q256JVMIQ TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q256JVMIQ TR?
W25Q256JVMIQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q256JVMIQ 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 W25Q256JVMIQ TR?
For technical support, including W25Q256JVMIQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q256JVMIQ TR requirements.
6.How does Aetrix verify that W25Q256JVMIQ TR is sourced from the original manufacturer or authorized distributors?
All W25Q256JVMIQ 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 W25Q256JVMIQ TR meets industry standards.
7.What is the process for return or replacement of W25Q256JVMIQ TR?
All W25Q256JVMIQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q256JVMIQ 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 W25Q256JVMIQ TR part is unused and in its original packaging.
Return procedure for W25Q256JVMIQ TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q256JVMIQ TR Tags
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