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Winbond Electronics Corporation W25M512JVCIQ
- Part No.:
- W25M512JVCIQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
W25M512JVCIQ.pdf
- Description:
- IC FLASH 512MBIT SPI 24TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,683
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Product details
Overview
W25M512JVCIQ from Winbond is a 512M-bit (2×256M-bit) Serial MCP Flash memory combining two stacked W25Q256JV die in a single package, supporting concurrent read-while-program/erase operations via shared SPI interface (CLK, /CS, IO0–IO3). It delivers 50 MB/s continuous data transfer at 104 MHz clock, with 4KB uniform sectors, 100K program/erase cycles per sector, and 20-year data retention - deployed in embedded boot code storage and firmware update modules.
For engineers reviewing the W25M512JVCIQ datasheet, W25M512JVCIQ pinout, W25M512JVCIQ application, or W25M512JVCIQ equivalent, key selection criteria include dual-die concurrency support, 4-byte addressing capability, software die select (C2h) instruction, and compatibility with standard/dual/quad SPI host controllers in space-constrained industrial and automotive control units.
Technical Context
The W25M512JVCIQ implements SpiStack® architecture with two independent W25Q256JV dies sharing one SPI bus; access is controlled via Software Die Select (C2h) instruction and factory-assigned Die ID#, ensuring no bus contention. Each die supports full instruction sets including 3-/4-byte addressing, fast read variants (Dual/Quad I/O), and suspend/resume for program/erase.
It integrates three volatile/non-volatile status registers (SR1–SR3) managing block protection (BP3–BP0), top/bottom lock (TB), complement protection (CMP), security register locks (LB3–LB1), output driver strength (DRV1/DRV0), and address mode (ADS/ADP); extended address register enables 4-byte mode without hardware pin change.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 512 M-bit (2 × 256 M-bit) stacked MCP configuration enabling higher capacity in low-pin-count footprint |
| Interface Modes | Standard SPI (DI/DO), Dual I/O (IO0/IO1), Quad I/O (IO0–IO3) - selectable per instruction for bandwidth scaling |
| Max Clock Frequency | 104 MHz for all SPI modes; yields 208 MB/s (Dual) or 416 MB/s (Quad) effective throughput |
| Addressing Support | 3-byte and 4-byte addressing modes; ADP bit stores default power-up mode; ADS reflects current active mode |
| Erase Granularity | Uniform 4 KB sectors, 32 KB blocks, 64 KB blocks - enables fine-grained firmware partitioning and OTA update safety |
| Endurance & Retention | Minimum 100,000 program/erase cycles per sector; guaranteed >20 years data retention at +85°C |
| Supply Voltage | 2.7 V to 3.6 V single supply - compatible with 3.3 V system rails and brown-out tolerant operation |
Pinout & Package
W25M512JVCIQ is packaged in 8-pad WSON 8×6-mm (Package Code E), with exposed pad for thermal dissipation and no /RESET pin. Pinout optimized for minimal PCB area while supporting full Quad SPI functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable for SPI command decoding; must be asserted before CLK edge to initiate transaction |
| 2 DO (IO1) | Data Output / I/O1 | Primary output during Standard/Dual SPI reads; bidirectional in Dual/Quad I/O modes |
| 3 IO2 | Data Input/Output 2 | Used exclusively in Quad SPI instructions (e.g., Fast Read Quad I/O, Page Program Quad) |
| 4 GND | Ground Reference | Signal and power return path; requires low-impedance connection to minimize noise coupling |
| 5 DI (IO0) | Data Input / I/O0 | Primary input for commands and data; bidirectional in Dual/Quad I/O modes |
| 6 CLK | Serial Clock Input | Master-generated clock up to 104 MHz; controls timing of all SPI data transfers and instruction latching |
| 7 IO3 | Data Input/Output 3 | Enables full Quad SPI operation; required for 4-bit-wide data transfers and high-speed burst reads |
| 8 VCC | Power Supply | 2.7–3.6 V supply; decoupling capacitor (≥1 µF) required within 5 mm of pin for stable read/write margins |
Key Features
| Feature | Design Value |
|---|---|
| Concurrent Operations | Independent access to each stacked die enables simultaneous read from one die while programming/erasing the other - eliminating wait states in firmware update sequences |
| Software Die Select (C2h) | Single-byte instruction selects active die without hardware reconfiguration; essential for deterministic multi-die management in bootloader environments |
| 4-Byte Address Mode | Supports >16 MB addressing space via C5h/E9h/B7h instructions; required for full 512 M-bit access without bank switching overhead |
| Security Register Locks | Three 256-byte OTP-locked security registers protect cryptographic keys or calibration data from overwrite or readout after programming |
| Program/Erase Suspend | 75h/7Ah instructions pause ongoing erase or program to service urgent read requests - critical for real-time interrupt latency control |
| Discoverable Parameters (SFDP) | 5Ah instruction returns JEDEC-standard parameter table, enabling automatic host driver configuration without hard-coded timing assumptions |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
|
Use Scenario: Storing and updating programmable logic controller firmware with field-upgradable safety-critical routines. IC Role / Device Role / Timing Role: Primary non-volatile boot and application code storage with concurrent read-while-update capability. Use Value: Enables zero-downtime firmware patching: host CPU reads active code from Die 0 while Die 1 is erased and reprogrammed. |
Use Scenario: Holding boot loader and sensor fusion algorithms for autonomous driving ECUs requiring ASIL-B compliance. IC Role / Device Role / Timing Role: Secure, high-reliability boot memory with OTP-protected security registers for key storage. Use Value: 20-year data retention and 100K-cycle endurance ensure functional safety over vehicle lifetime without refresh. |
| Medical Imaging System Configuration | Smart Energy Meter Data Logging |
|
Use Scenario: Storing calibrated imaging parameters, DICOM metadata templates, and regulatory audit logs. IC Role / Device Role / Timing Role: Parameter and event log storage with individual sector lock (36h/39h) for tamper resistance. Use Value: 4KB uniform sectors allow isolated write-protection of calibration data without affecting firmware partitions. |
Use Scenario: Recording time-stamped energy consumption data across 10+ year deployments in utility meters. IC Role / Device Role / Timing Role: High-endurance data logger with suspend/resume (75h/7Ah) to prioritize metering interrupts. Use Value: Concurrent operations reduce logging latency during firmware validation cycles, improving time-slice accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial MCP flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Macronix MX25L51245G | Single-die 512 M-bit SPI flash; no stacked die or concurrent operations; supports only 3-byte addressing by default | Lacks die-select and read-while-program; suitable for simpler boot-only use cases without firmware update concurrency | Select when cost sensitivity outweighs need for concurrent operations and 4-byte addressing flexibility |
| Cypress S25FL512S | 512 M-bit HyperFlash-compatible device with DDR interface; higher bandwidth but requires different controller IP and layout | Targets high-speed code execution (XIP) rather than MCP-style firmware partitioning; no die stacking | Choose for systems needing >133 MHz random read performance and willing to adopt HyperBus interface |
Compared with MX25L51245G and S25FL512S, W25M512JVCIQ uniquely delivers dual-die concurrency in a standard SPI footprint - enabling firmware update acceleration without changing host controller design or PCB layout.
Availability
W25M512JVCIQ is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, medical imaging configuration, and smart energy meter data logging requiring stable component supply and long-term lifecycle assurance.
Supply support for W25M512JVCIQ 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 DRAM, serial flash, and mobile DRAM solutions for consumer, industrial, and automotive markets.
The W25M SpiStack® product line was designed to deliver higher density serial flash in standard packages while enabling concurrent operations - solving boot time and firmware update bottlenecks in resource-constrained embedded systems.
FAQ
What is the difference between W25M512JVCIQ and W25Q512JV?
W25M512JVCIQ is a Multi-Chip Package containing two independent 256 M-bit W25Q256JV dies with Software Die Select (C2h) support, enabling concurrent operations. W25Q512JV is a single-die 512 M-bit device without die stacking or concurrency features. W25M512JVCIQ provides unique read-while-program/erase capability that W25Q512JV cannot replicate.
Does W25M512JVCIQ support 4-byte addressing, and how is it enabled?
Yes, W25M512JVCIQ supports 4-byte addressing via the Enter 4-Byte Address Mode instruction (B7h). The ADP bit in Status Register-3 stores the default power-up mode, and ADS reflects the current active mode. Once enabled, all subsequent read/write/erase instructions use 32-bit addresses - essential for accessing the full 512 M-bit capacity without bank switching. W25M512JVCIQ requires explicit B7h execution unless ADP is pre-configured.
How does the Software Die Select (C2h) instruction work in W25M512JVCIQ?
The Software Die Select (C2h) instruction in W25M512JVCIQ allows the host to choose which of the two stacked dies responds to subsequent commands. After issuing C2h followed by a 1-byte die ID (00h or 01h), only the selected die acknowledges instructions until another C2h is issued. This ensures deterministic, contention-free access - a core enabler of W25M512JVCIQ's concurrent operations capability.
What package type is used for W25M512JVCIQ, and does it include a /RESET pin?
W25M512JVCIQ uses the 8-pad WSON 8×6-mm package (Package Code E), which does not include a /RESET pin. The /RESET function is only available on the 16-pin SOIC 300-mil (Code F) and 24-ball TFBGA (Codes B/C) variants. For W25M512JVCIQ, reset is performed via the Software Reset instruction (66h/99h) or power cycle - confirmed in Section 2 and Figure 1a of the datasheet.
Can W25M512JVCIQ be used in place of a single W25Q256JV for backward compatibility?
W25M512JVCIQ maintains full instruction-set compatibility with W25Q256JV for single-die operation, but requires explicit Software Die Select (C2h) to target Die 0 or Die 1. In default state, it behaves like a single 256 M-bit device until C2h is issued. However, W25M512JVCIQ's dual-die architecture and extended status registers mean full backward compatibility requires firmware awareness of die selection and 4-byte mode handling - not a drop-in replacement without validation.
W25M512JVCIQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 24-TBGA
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 512Mbit
- Memory Organization:
- 64M x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 104 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:
- 24-TFBGA (6x8)
W25M512JVCIQ FAQ
1.How can I place an order for W25M512JVCIQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25M512JVCIQ 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 W25M512JVCIQ reliable?
The price and inventory of W25M512JVCIQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25M512JVCIQ is usually 5 days.
3.What payment methods are accepted for W25M512JVCIQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25M512JVCIQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25M512JVCIQ?
W25M512JVCIQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25M512JVCIQ 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 W25M512JVCIQ?
For technical support, including W25M512JVCIQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25M512JVCIQ requirements.
6.How does Aetrix verify that W25M512JVCIQ is sourced from the original manufacturer or authorized distributors?
All W25M512JVCIQ 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 W25M512JVCIQ meets industry standards.
7.What is the process for return or replacement of W25M512JVCIQ?
All W25M512JVCIQ units undergo pre-shipment inspection (PSI). If there is an issue with W25M512JVCIQ, 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 W25M512JVCIQ part is unused and in its original packaging.
Return procedure for W25M512JVCIQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25M512JVCIQ 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
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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
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AT24C08C-STUM-T
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