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Winbond Electronics Corporation W25Q64JWSSIM TR
- Part No.:
- W25Q64JWSSIM TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q64JWSSIM TR.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,922
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Product details
Overview
W25Q64JWSSIM TR from Winbond is a 1.8V, 64M-bit serial NOR flash memory with Dual/Quad SPI, QPI, and Double Transfer Rate (DTR) support, organized as 32,768 × 256-byte pages. It delivers up to 133MHz Quad I/O clocking, 66MB/s continuous read throughput, and supports execute-in-place (XIP) operation for embedded code storage. Used in microcontroller boot memory, firmware storage, and IoT device configuration.
For engineers reviewing the W25Q64JWSSIM TR datasheet, W25Q64JWSSIM TR pinout, W25Q64JWSSIM TR application, or W25Q64JWSSIM TR equivalent, this page provides verified package mapping (SOIC-8 208-mil), confirmed pin functions including /CS, CLK, DI/IO0, DO/IO1, /WP/IO2, /HOLD/IO3, VCC, GND, real-world timing specs (e.g., 133MHz Quad I/O, DTR Fast Read), JEDEC ID compliance, and validated alternative parts for migration or sourcing flexibility.
Technical Context
The W25Q64JWSSIM TR implements a flexible SPI-compatible interface supporting Standard (4-wire), Dual (4-wire with bidirectional IO0/IO1), and Quad (6-wire with IO0–IO3) modes - with QPI mode enabled via 38h instruction. Its architecture includes volatile/non-volatile status register bits (QE, BP2–BP0, TB, SEC, CMP, SRP), erase suspend/resume, and programmable output drive strength (DRV1/DRV0).
It integrates hardware write protection via /WP and /HOLD pins (active-low), both repurposed as IO2/IO3 when Quad Enable (QE=1) is set. The device supports JEDEC-standard manufacturer/device ID (9Fh), 64-bit unique serial number (4Bh), SFDP register (5Ah), and four 256-byte security registers with OTP locks - all accessible via defined instruction set including DTR variants (0Dh, BDh, EDh, 0Eh).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 M-bit (8 MB), organized as 32,768 × 256-byte pages |
| Supply Voltage | 1.7–1.95 V - enables low-power operation in battery-backed or energy-constrained systems |
| Max Clock Frequency | 133 MHz Quad I/O - enables 532 Mbps effective throughput (133 MHz × 4 lines) |
| Data Retention | 20+ years - ensures long-term firmware integrity without refresh |
| Endurance | 100,000 program/erase cycles - supports frequent field firmware updates |
| Erase Granularity | 4 KB sectors, 32 KB blocks, 64 KB blocks, full chip - allows fine-grained parameter storage and bulk firmware replacement |
| Interface Modes | Standard SPI, Dual SPI, Quad SPI, QPI, and DTR variants - provides backward compatibility and performance scaling |
Pinout & Package
W25Q64JWSSIM TR uses the 8-pin SOIC 208-mil package (Package Code SS), with exposed pad not present. Pin functions are electrically validated per Winbond's W25Q64JW_DTR Rev. B datasheet Section 3.1 and 4.1–4.6.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; high-impedance DO and standby current (~0.1 µA) when deasserted |
| 2 DO (IO1) | Data Output / Quad I/O Line 1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad modes after QE=1 |
| 3 /WP (IO2) | Write Protect Input / Quad I/O Line 2 | Hardware lock for status register; repurposed as IO2 when QE=1 - disables /WP function |
| 4 GND | Ground Reference | Primary return path for VCC and I/O signals; must be low-impedance for timing stability |
| 5 DI (IO0) | Data Input / Quad I/O Line 0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad modes after QE=1 |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference; supports Mode 0 and Mode 3; max 133 MHz in Quad I/O |
| 7 /HOLD (IO3) | Hold Input / Quad I/O Line 3 | Pauses ongoing read/write; repurposed as IO3 when QE=1 - disables /HOLD function |
| 8 VCC | Power Supply | 1.7–1.95 V supply; powers core logic, I/O buffers, and charge pumps for erase/program |
Key Features
| Feature | Design Value |
|---|---|
| DTR (Double Transfer Rate) Read Support | Enables 0Dh/BDh/EDh/0Eh instructions for dual-edge sampling - doubles effective bandwidth without increasing clock frequency |
| Quad Peripheral Interface (QPI) | Reduces instruction overhead: 2-clock instruction fetch vs. 8-clock SPI - accelerates XIP startup and reduces CPU wait states |
| Erase/Program Suspend & Resume | Allows background interrupt handling during long erase cycles (e.g., 64KB block erase ~300 ms) - improves real-time system responsiveness |
| Individual Block/Sector Lock | 36h/39h instructions enable per-sector write protection - isolates critical bootloader or calibration data from application-level writes |
| Security Registers with OTP Locks | Four 256-byte registers protected by one-time-programmable (OTP) bits - suitable for storing cryptographic keys or device-specific credentials |
Applications
| Boot Memory for MCU | Firmware Storage in IoT Gateways |
|---|---|
|
Use Scenario: Stores boot code for ARM Cortex-M or RISC-V microcontrollers requiring fast, reliable initialization at power-on. IC Role / Device Role / Timing Role: Primary non-volatile boot source accessed via Quad SPI XIP or code shadowing; supports 133MHz read clocks for sub-100ms boot time. Use Value: Eliminates external RAM copy step via true XIP execution - reduces BOM cost and boot latency while maintaining deterministic timing. |
Use Scenario: Holds firmware images, OTA update partitions, and device configuration in cellular/NB-IoT edge gateways. IC Role / Device Role / Timing Role: Dual-role storage: static config (4KB sectors) + dynamic firmware (64KB blocks); leverages erase suspend for concurrent OTA download and runtime operation. Use Value: Enables safe over-the-air updates with atomic sector locking - prevents corruption during power loss or reset mid-update. |
| Secure Configuration Storage | Industrial HMI Display Firmware |
|
Use Scenario: Stores encrypted calibration data, MAC addresses, and device identity tokens in medical or industrial controllers. IC Role / Device Role / Timing Role: Secure non-volatile vault using 256-byte OTP-locked security registers and 64-bit unique ID (4Bh instruction). Use Value: Provides hardware-enforced separation of sensitive data from main firmware - meets IEC 62443 and UL 60730 security requirements. |
Use Scenario: Hosts GUI assets, font tables, and display controller firmware in human-machine interface panels. IC Role / Device Role / Timing Role: High-throughput graphics loader using DTR Fast Read Quad I/O (EDh) to stream compressed bitmaps at >50 MB/s. Use Value: Reduces display initialization time by 4× vs. standard SPI - enables <200ms UI render on cold start with no external cache. |
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 | 3V supply (2.7–3.6V), no DTR support, 104MHz max Quad SPI, lacks QPI mode and security registers | Requires level-shifting for 1.8V systems; unsuitable for secure key storage or DTR-critical bandwidth paths | Select only if operating voltage is 3.3V and security/DTR features are unnecessary. |
| S25FL164K0XMFI010 | 1.8V compatible, 80MHz Quad SPI, supports SFDP but no DTR or QPI; includes hardware reset pin in all packages | Lacks DTR bandwidth boost and QPI instruction compression - limits XIP performance in latency-sensitive designs | Prefer when hardware /RESET pin availability across all packages is mandatory and 66MB/s throughput is not required. |
Compared with W25Q64JWSSIM TR, MX25L6433FZNI-10G requires voltage translation and offers lower speed/security, while S25FL164K0XMFI010 provides universal /RESET but sacrifices DTR efficiency and QPI instruction density - making W25Q64JWSSIM TR optimal for 1.8V, high-bandwidth, secure XIP use cases.
Availability
W25Q64JWSSIM TR is available at Aetrix Electronics and suitable for embedded boot memory, IoT firmware storage, and industrial HMI display applications requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for W25Q64JWSSIM 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 serial NOR/NAND flash, RAM, and trusted computing ICs since 1987.
The W25Q64JW series belongs to Winbond's SpiFlash family, designed specifically for high-reliability, low-voltage embedded systems needing fast, secure, and flexible code and data storage - with emphasis on XIP, DTR, and hardware security features.
FAQ
What is the operating voltage range for W25Q64JWSSIM TR?
The W25Q64JWSSIM TR operates strictly within 1.7 V to 1.95 V. This narrow 1.8V nominal range enables ultra-low active current (1 mA) and power-down current (<0.1 µA), making it ideal for battery-powered or energy-harvesting systems. Operation outside this range may cause functional failure or data corruption - no 3.3V tolerance is supported.
Does W25Q64JWSSIM TR support Quad SPI and QPI simultaneously?
No - W25Q64JWSSIM TR supports either Quad SPI or QPI mode, not both concurrently. QPI mode is entered explicitly via the 38h instruction and exited with FFh; all instructions thereafter follow QPI protocol (2-clock instruction fetch). Quad SPI remains active in standard SPI bus configuration with QE=1 set in Status Register-2.
How is the /HOLD pin used in W25Q64JWSSIM TR, and what happens when QE=1?
In W25Q64JWSSIM TR, /HOLD (Pin 7) pauses ongoing read/write operations when pulled low while /CS is active. When the Quad Enable (QE) bit in Status Register-2 is set to 1, Pin 7 becomes IO3 - disabling /HOLD functionality. This repurposing is irreversible until QE is cleared, and /HOLD is unavailable in Quad I/O mode.
What package type does W25Q64JWSSIM TR use, and is it RoHS compliant?
W25Q64JWSSIM TR uses the 8-pin SOIC 208-mil package (Package Code SS) with matte tin lead finish. It is RoHS compliant and halogen-free per Winbond's material declarations, meeting JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) - requiring bake before reflow if exposed >168 hours at ambient conditions.
Can W25Q64JWSSIM TR store and protect cryptographic keys?
Yes - W25Q64JWSSIM TR includes four 256-byte Security Registers with One-Time-Programmable (OTP) lock bits (LB1–LB3). Once locked, these registers become read-only and immune to accidental overwrite, enabling secure storage of AES keys, device certificates, or calibration secrets - verified via 42h/44h/48h instructions.
W25Q64JWSSIM TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 133 MHz
- Write Cycle Time - Word, Page:
- 3ms
- 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-SOIC
W25Q64JWSSIM TR FAQ
1.How can I place an order for W25Q64JWSSIM TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q64JWSSIM 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 W25Q64JWSSIM TR reliable?
The price and inventory of W25Q64JWSSIM TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q64JWSSIM TR is usually 5 days.
3.What payment methods are accepted for W25Q64JWSSIM TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q64JWSSIM TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q64JWSSIM TR?
W25Q64JWSSIM TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q64JWSSIM 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 W25Q64JWSSIM TR?
For technical support, including W25Q64JWSSIM TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q64JWSSIM TR requirements.
6.How does Aetrix verify that W25Q64JWSSIM TR is sourced from the original manufacturer or authorized distributors?
All W25Q64JWSSIM 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 W25Q64JWSSIM TR meets industry standards.
7.What is the process for return or replacement of W25Q64JWSSIM TR?
All W25Q64JWSSIM TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q64JWSSIM 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 W25Q64JWSSIM TR part is unused and in its original packaging.
Return procedure for W25Q64JWSSIM TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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