My Inquiry
My Account
Winbond Electronics Corporation W25Q256JWYIQ TR
- Part No.:
- W25Q256JWYIQ TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 32-UFBGA, WLCSP
- Datasheet:
-
W25Q256JWYIQ TR.pdf
- Description:
- IC FLASH 256MBIT SPI 32WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,550
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
W25Q256JWYIQ TR from Winbond is a 1.8V, 256M-bit (32MB) serial NOR flash memory supporting standard, dual, and quad SPI interfaces with up to 133MHz clock frequency and 4KB uniform sector architecture. It delivers 532MB/s equivalent quad I/O throughput, supports 3- or 4-byte addressing, and features hardware /RESET, /WP, and /HOLD pins for industrial-grade system control in embedded boot code storage applications.
For engineers reviewing the W25Q256JWYIQ TR datasheet, W25Q256JWYIQ TR pinout, W25Q256JWYIQ TR application, or W25Q256JWYIQ TR equivalent, key selection considerations include 1.7–1.95V supply compatibility, -40°C to +105°C extended temperature operation, JEDEC SFDP register support, 64-bit unique ID, and 3×256-byte OTP-locked security registers.
Technical Context
The W25Q256JWYIQ TR implements a flexible SPI command set with dedicated instructions for fast read quad I/O (6Bh/6Ch), quad input page program (32h/34h), and 4-byte address mode entry (B7h). Its status register architecture includes volatile/non-volatile BP bits, QE bit (SR2[1]), ADS/ADP address mode flags, and DRV0/DRV1 output drive strength controls.
Memory organization comprises 131,072 × 256-byte pages, 8,192 × 4KB sectors, and 512 × 64KB blocks. Erase suspend/resume (75h/7Ah), individual sector lock (36h), and global lock (7Eh) enable robust field firmware updates. The device uses internal high-voltage generators for erase/program without external VPP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 M-bit (32 MB) - supports full OS image or multi-application firmware storage in space-constrained designs. |
| Supply Voltage | 1.7 V to 1.95 V - enables direct integration with 1.8V logic domains without level-shifting. |
| Max Clock Frequency | 133 MHz (Quad I/O) - achieves 532 MB/s effective bandwidth for XIP or high-speed data logging. |
| Operating Temperature | -40°C to +105°C - qualified for industrial plus grade environments including automotive infotainment and motor control. |
| Erase/Program Cycles | 100,000 cycles - ensures long-term reliability for field-upgradable firmware partitions. |
| Data Retention | 20 years - guarantees integrity of calibration data, configuration tables, and cryptographic keys over product lifetime. |
| Security Features | 64-bit unique ID, 3×256-byte OTP security registers, SFDP register - enables secure boot chain validation and device authentication. |
Pinout & Package
W25Q256JWYIQ TR is supplied in an 8-pad WSON 6×5-mm package (Package Code P), with exposed pad for thermal dissipation and no lead finish restrictions per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable for SPI command acceptance; high-impedance DO during deselect to reduce bus contention. |
| DI (IO0) | Serial Data Input / Quad I/O 0 | Primary data input in standard/dual SPI; becomes bidirectional IO0 in quad mode when QE=1. |
| DO (IO1) | Serial Data Output / Quad I/O 1 | Primary data output in standard/dual SPI; becomes bidirectional IO1 in quad mode when QE=1. |
| /WP (IO2) | Write Protect Input / Quad I/O 2 | Hardware lock for status register writes; repurposed as IO2 in quad mode when QE=1. |
| /HOLD (IO3) | Hold Input / Quad I/O 3 | Pauses active SPI transaction; repurposed as IO3 in quad mode when QE=1; not available in quad mode if /RESET required. |
| CLK | Serial Clock Input | Synchronizes all SPI data transfers; timing-critical path requiring controlled impedance routing. |
| VCC | Power Supply | 1.7–1.95V core supply; requires local 1µF ceramic decoupling adjacent to pin. |
| GND | Ground | Reference return path for all I/O and core logic; must connect to low-impedance ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Fast Read (6Bh/6Ch) | Enables 532 MB/s burst reads from continuous 4KB sectors - accelerates boot time and firmware patching. |
| Erase Suspend/Resume (75h/7Ah) | Allows interruption of long block erases to service real-time interrupts - critical for deterministic response in safety-critical systems. |
| Individual Sector Lock (36h/39h) | Permits selective write-protection of specific 4KB sectors - isolates bootloader, parameter tables, and user data without global lock. |
| 4-Byte Address Mode (B7h/E9h) | Extends addressable space beyond 16MB - required for full 32MB access and future-proof firmware partitioning. |
| Output Driver Strength Control (DRV1/DRV0) | Configurable slew rate and drive strength via Status Register-2 - optimizes signal integrity across varying trace lengths and loads. |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
|
Use Scenario: Storing firmware images and configuration parameters for programmable logic controllers operating in harsh factory environments with wide temperature swings. IC Role / Device Role / Timing Role: Primary non-volatile boot memory providing XIP-capable code execution and secure firmware update storage. Use Value: 100K erase/program cycles and 20-year data retention ensure reliable operation over 15+ year equipment lifetimes without field replacement. |
Use Scenario: Hosting boot code and sensor calibration data for camera-based driver assistance modules requiring ASIL-B compliance. IC Role / Device Role / Timing Role: Secure, high-reliability flash memory enabling authenticated boot and tamper-resistant parameter storage. Use Value: 64-bit unique ID and OTP-locked security registers support cryptographic key binding and anti-cloning measures. |
| Medical Imaging Device Configuration | Smart Energy Meter Firmware |
|
Use Scenario: Storing DICOM metadata templates, calibration profiles, and regulatory-compliant audit logs in portable ultrasound units. IC Role / Device Role / Timing Role: Parameter and data archive memory with sector-level protection to prevent accidental overwrite of clinical settings. Use Value: Uniform 4KB sectors allow independent locking of calibration data while permitting firmware updates to application code sections. |
Use Scenario: Holding firmware, tariff tables, and encrypted metering history in utility-grade smart meters deployed outdoors for >10 years. IC Role / Device Role / Timing Role: Long-life, temperature-stable storage for mission-critical firmware and billing data. Use Value: -40°C to +105°C rating and <1µA power-down current ensure uninterrupted operation in uncontrolled outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L25645GMI-10G | 3.3V supply only; no 4-byte address mode; lacks /RESET pin in same package; 100MHz max clock | Not suitable for 1.8V systems or applications requiring >16MB addressing; limited security register depth | Select W25Q256JWYIQ TR when 1.8V operation, extended temperature, or quad I/O performance is mandatory. |
| S25FL256SAGMFI010 | 1.8V compatible but requires external VIO supply for I/O; no integrated /RESET; 80MHz max quad clock | Needs additional power rail design; lower bandwidth limits real-time firmware streaming use cases | Choose W25Q256JWYIQ TR for single-supply simplicity, higher throughput, and built-in reset functionality. |
Compared with MX25L25645GMI-10G and S25FL256SAGMFI010, the W25Q256JWYIQ TR provides native 1.8V operation, 133MHz quad I/O, integrated /RESET, and full 4-byte addressing - reducing BOM count and enabling faster, more secure firmware deployments in industrial-plus environments.
Availability
W25Q256JWYIQ TR is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical device applications requiring stable component supply, long-term lifecycle assurance, and extended temperature qualification.
Supply support for W25Q256JWYIQ 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 manufacturer specializing in specialty DRAM, mobile RAM, and serial flash memory solutions since 1987.
The W25Q series targets high-performance, low-power embedded systems requiring robust code storage, secure firmware updates, and industrial-grade reliability - with the W25Q256JWYIQ TR optimized for 1.8V, extended-temp, and quad-SPI boot applications.
FAQ
What is the maximum clock frequency supported by W25Q256JWYIQ TR in Quad I/O mode?
The W25Q256JWYIQ TR supports up to 133MHz in Quad I/O mode, delivering an effective data rate of 532MB/s using Fast Read Quad I/O instructions (6Bh/6Ch). This specification is guaranteed across the full -40°C to +105°C operating range and requires proper PCB layout with controlled impedance traces and tight length matching for all four IO lines.
Does W25Q256JWYIQ TR support 4-byte addressing, and how is it enabled?
Yes, W25Q256JWYIQ TR supports 4-byte addressing to access its full 32MB capacity. It is enabled via the Enter 4-Byte Address Mode instruction (B7h), which sets the ADP bit in the non-volatile configuration register. The device retains this setting across power cycles unless explicitly disabled with Exit 4-Byte Address Mode (E9h).
What package type is used for W25Q256JWYIQ TR, and does it include a /RESET pin?
W25Q256JWYIQ TR uses the 8-pad WSON 6×5-mm package (Package Code P), which does not include a dedicated /RESET pin. The /HOLD pin (Pin 7) serves dual function as /HOLD or /RESET depending on configuration, but hardware reset capability is only available on SOIC-16 and TFBGA variants - not on this WSON variant.
How many security registers does W25Q256JWYIQ TR provide, and what is their protection mechanism?
W25Q256JWYIQ TR includes three 256-byte security registers (SR1–SR3), each protected by one-time-programmable (OTP) lock bits (LB1–LB3). Once locked, contents cannot be modified or read back, enabling secure storage of cryptographic keys, calibration secrets, or device-specific credentials without risk of extraction.
Is W25Q256JWYIQ TR compatible with standard SPI controllers, or does it require special hardware support?
W25Q256JWYIQ TR is fully backward-compatible with standard SPI controllers using CLK, /CS, DI, and DO pins. Dual and Quad SPI modes require controller support for multi-line I/O and specific instruction sets (e.g., 3Bh, 6Bh), but standard SPI operation (03h, 02h) works with any legacy SPI master without modification.
W25Q256JWYIQ TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 32-UFBGA, WLCSP
- 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:
- 5ms
- Access Time:
- 6 ns
- Voltage - Supply:
- 1.7V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-WLCSP (3.98x3.19)
W25Q256JWYIQ TR FAQ
1.How can I place an order for W25Q256JWYIQ TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q256JWYIQ 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 W25Q256JWYIQ TR reliable?
The price and inventory of W25Q256JWYIQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q256JWYIQ TR is usually 5 days.
3.What payment methods are accepted for W25Q256JWYIQ TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q256JWYIQ TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q256JWYIQ TR?
W25Q256JWYIQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q256JWYIQ 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 W25Q256JWYIQ TR?
For technical support, including W25Q256JWYIQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q256JWYIQ TR requirements.
6.How does Aetrix verify that W25Q256JWYIQ TR is sourced from the original manufacturer or authorized distributors?
All W25Q256JWYIQ 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 W25Q256JWYIQ TR meets industry standards.
7.What is the process for return or replacement of W25Q256JWYIQ TR?
All W25Q256JWYIQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q256JWYIQ 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 W25Q256JWYIQ TR part is unused and in its original packaging.
Return procedure for W25Q256JWYIQ TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q256JWYIQ TR Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
