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Winbond Electronics Corporation W29GL256PL9B TR
- Part No.:
- W29GL256PL9B TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 64-LBGA
- Datasheet:
-
W29GL256PL9B TR.pdf
- Description:
- IC FLASH 256MBIT PAR 64LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,736
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Product details
Overview
W29GL256PL9B TR from Winbond is a 256-Mbit (32 MByte) parallel NOR Flash memory with uniform 128-KByte sectors, 90 ns random access time, 25 ns page access time, and single 3.0 V supply (2.7–3.6 V). It supports page mode read, write buffer programming (32-word), sector erase suspend/resume, and CFI interface - deployed in industrial embedded boot code storage and firmware update systems.
For engineers reviewing the W29GL256PL9B TR datasheet, W29GL256PL9B TR pinout, W29GL256PL9B TR application, or W29GL256PL9B TR equivalent, key selection criteria include sector protection granularity, #WP/ACC-accelerated programming timing, EVIO voltage flexibility (1.65–VCC), RY/#BY status signaling, and TSOP-56 mechanical compatibility for legacy board reuse.
Technical Context
The W29GL256PL9B TR implements a uniform sector architecture with 256 × 128 KByte sectors and supports both byte (DQ0–DQ7) and word (DQ0–DQ15) data bus configurations via #BYTE pin control. Its instruction set uses address/data command sequences latched on falling #WE/#CE edges, with status monitored via DQ5 toggling or RY/#BY assertion.
It integrates Enhanced Variable IO (EVIO) to scale input/output thresholds dynamically across 1.65–VCC, enabling interoperability with mixed-voltage host controllers. Sector protection combines volatile DPB, non-volatile IPB, and factory-lockable 256-byte secured silicon sector with 16-byte electronic serial number.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 MByte), organized as 2,097,152 × 16-bit or 4,194,304 × 8-bit |
| Access Time | 90 ns random read; enables fast boot code fetch in microcontroller-based systems |
| Page Access Time | 25 ns; reduces latency during sequential instruction fetch within 16-byte pages |
| Write Buffer Size | 32-word (64-byte); cuts multi-word programming time by batching writes before commit |
| Erase/Program Endurance | 100,000 cycles; supports field firmware updates over product lifetime |
| Data Retention | 20 years at 85°C; ensures long-term reliability in industrial temperature environments |
| Operating Voltage | 2.7–3.6 V single supply; eliminates need for separate VCC/VPP rails |
| Temperature Range | –40°C to +85°C industrial grade; validated for extended thermal cycling in embedded control units |
Pinout & Package
W29GL256PL9B TR is packaged in 56-pin TSOP-I (14 × 20 mm), pin-compatible with JEDEC MO-142 standard. Pin functions are electrically defined per Winbond's official pin description table and validated for 3.3 V logic interfacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A23 | Address Inputs | 24-bit address bus supporting full 32 MByte addressing in word mode; A-1 multiplexed with DQ15 in byte mode |
| DQ0–DQ14 | Data I/O (bidirectional) | Primary data path; DQ15 serves as A-1 in byte mode (#BYTE = VIL) |
| #CE | Chip Enable | Active-low chip select; controls device enable and latches address on falling edge |
| #OE | Output Enable | Active-low output gate; places DQ pins in high-Z when deasserted |
| #WE | Write Enable | Active-low write strobe; latches data on rising edge and initiates program/erase commands |
| #WP/ACC | Hardware Write Protect / Acceleration | Protects top/bottom sector when low; applies VHH to accelerate programming during production |
| #BYTE | Bus Width Select | VIH = 16-bit word mode (A23–A0); VIL = 8-bit byte mode (A23–A-1, DQ15 = A-1) |
| RY/#BY | Ready/Busy Status | Open-drain active-low signal indicating ongoing program/erase; used for polling or interrupt-driven flow control |
| #RESET | Hardware Reset | Forces return to Read mode; required after timeout/failure to recover from suspended states |
| EVIO | Enhanced Variable IO Supply | Bias reference for all I/O thresholds; sets logic levels dynamically between 1.65 V and VCC |
Key Features
| Feature | Design Value |
|---|---|
| Uniform 128-KByte Sectors | 256 identical sectors enable deterministic firmware partitioning and OTA update rollback without alignment overhead |
| Secured Silicon Sector | 256-byte factory-lockable region stores immutable 16-byte electronic serial number for device authentication |
| Erase/Program Suspend | Allows real-time interrupt handling during sector erase - critical for responsive HMI or safety-critical boot loaders |
| CFI Interface Support | Enables automatic detection of geometry, timing, and vendor ID by host BIOS/bootloader without hardcoded parameters |
| Deep Power Down Mode | Reduces standby current to ≤1 µA - extends battery life in always-on industrial monitoring nodes |
| Enhanced Sector Protection | Combines volatile DPB, non-volatile IPB, and #WP hardware lock for layered security against accidental or malicious overwrite |
Applications
| Industrial PLC Firmware Storage | Automotive ECU Boot Code |
|---|---|
|
Use Scenario: Storing boot firmware and configuration tables in programmable logic controllers operating continuously in factory-floor environments. IC Role / Device Role / Timing Role: Primary nonvolatile code storage with deterministic 90 ns read access and sector-level update capability. Use Value: Uniform 128-KByte sectors simplify firmware image management; industrial temperature rating ensures operation at 85°C ambient. |
Use Scenario: Holding certified boot loader and safety-critical application code in automotive engine control units requiring ASIL-B compliance. IC Role / Device Role / Timing Role: Secure, tamper-resistant code repository with secured silicon sector for cryptographic key binding. Use Value: Factory-lockable security sector prevents unauthorized reprogramming; 100,000-cycle endurance supports calibration updates over vehicle lifetime. |
| Medical Device Configuration Memory | Networking Equipment Image Storage |
|
Use Scenario: Retaining calibrated sensor offsets, user preferences, and regulatory audit logs in Class II medical instruments. IC Role / Device Role / Timing Role: High-reliability parameter storage with 20-year data retention and hardware write protection. Use Value: #WP/ACC pin enables dual-mode protection - permanent lock during manufacturing and field-programmable lock during service. |
Use Scenario: Hosting primary and fallback firmware images in enterprise switches and routers requiring zero-downtime upgrades. IC Role / Device Role / Timing Role: Dual-image storage with atomic sector erase to guarantee boot integrity after failed update attempts. Use Value: Erase suspend/resume allows background image validation while maintaining network uptime; CFI support simplifies bootloader porting across platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S29GL256S11TFI010 | 256 Mbit, 110 ns access, 3.0 V, 64-ball LFBGA only - no TSOP option | Lacks TSOP-56 package; requires PCB redesign; no EVIO or #WP/ACC acceleration | Choose only if LFBGA footprint is fixed and slower access acceptable |
| MX29GL256ELXGI-90G | 256 Mbit, 90 ns, 3.0 V, TSOP-56; no CFI support; no secured silicon sector | Missing CFI auto-detection and factory-lockable security region; limited protection granularity | Select when cost sensitivity outweighs security and bootloader flexibility requirements |
Compared with S29GL256S11TFI010 and MX29GL256ELXGI-90G, W29GL256PL9B TR uniquely delivers TSOP-56 compatibility, EVIO voltage adaptability, #WP/ACC acceleration, and a factory-lockable secured silicon sector - making it optimal for industrial designs requiring legacy board reuse, mixed-voltage host integration, and hardware-enforced identity binding.
Availability
W29GL256PL9B TR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot code, and medical device configuration memory requiring stable component supply and long-lifecycle support.
Supply support for W29GL256PL9B 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 NOR Flash, PSRAM, and audio codecs, with global manufacturing and quality certifications.
The W29GL series targets industrial and automotive embedded systems needing reliable, pin-compatible parallel Flash with enhanced security, power efficiency, and firmware update robustness - directly addressing legacy design refresh and safety-critical boot requirements.
FAQ
What is the package type and pin count of the W29GL256PL9B TR?
The W29GL256PL9B TR uses a 56-pin TSOP-I (Thin Small Outline Package) with 14 mm × 20 mm body dimensions, compliant with JEDEC MO-142. This package supports surface-mount assembly and is mechanically and electrically compatible with legacy parallel Flash sockets in industrial control and networking equipment. The W29GL256PL9B TR pinout includes dedicated #WP/ACC, EVIO, and RY/#BY signals not found in basic NOR Flash devices.
Does the W29GL256PL9B TR support both byte and word data bus modes?
Yes, the W29GL256PL9B TR supports configurable 8-bit and 16-bit data interfaces via the #BYTE pin: VIH selects 16-bit word mode (A23–A0, DQ0–DQ15 active), while VIL enables 8-bit byte mode (A23–A-1, with DQ15 repurposed as A-1). This dual-mode capability allows the W29GL256PL9B TR to interface seamlessly with microcontrollers and SoCs offering either bus width, reducing design complexity across product families.
How does the secured silicon sector function in the W29GL256PL9B TR?
The W29GL256PL9B TR includes a dedicated 256-byte secured silicon sector that can be factory-programmed and permanently locked or customer-programmed with a unique 16-byte electronic serial number. Once locked (via #WP or IPB), this region becomes read-only and immune to erase commands - enabling secure device identification, cryptographic key binding, and anti-cloning in medical and industrial applications. The W29GL256PL9B TR supports both factory-locked and customer-lockable configurations.
What is the role of the EVIO pin on the W29GL256PL9B TR?
The EVIO (Enhanced Variable IO) pin on the W29GL256PL9B TR sets the voltage reference for all input thresholds (address, control, DQ) and output drive levels, scaling linearly from 1.65 V to VCC. This allows the W29GL256PL9B TR to interoperate reliably with host controllers operating at different I/O voltages - such as 1.8 V, 2.5 V, or 3.3 V - without level shifters. EVIO eliminates voltage-matching constraints in mixed-signal embedded systems.
Can the W29GL256PL9B TR perform erase operations while allowing reads from other sectors?
Yes, the W29GL256PL9B TR supports Erase Suspend/Resume functionality: issuing an Erase Suspend command pauses an ongoing sector erase (within ≤20 µs), enabling read or program operations in any non-erasing sector. After completion, an Erase Resume command restarts the suspended erase from the exact point of interruption. This capability is essential for W29GL256PL9B TR deployments in real-time systems where firmware updates must not block critical data access.
W29GL256PL9B TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- -
- Package/Case:
- 64-LBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 256Mbit
- Memory Organization:
- 32M x 8, 16M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 90ns
- Access Time:
- 90 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-LFBGA (11x13)
W29GL256PL9B TR FAQ
1.How can I place an order for W29GL256PL9B TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W29GL256PL9B 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 W29GL256PL9B TR reliable?
The price and inventory of W29GL256PL9B TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W29GL256PL9B TR is usually 5 days.
3.What payment methods are accepted for W29GL256PL9B TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W29GL256PL9B TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W29GL256PL9B TR?
W29GL256PL9B TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W29GL256PL9B 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 W29GL256PL9B TR?
For technical support, including W29GL256PL9B TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W29GL256PL9B TR requirements.
6.How does Aetrix verify that W29GL256PL9B TR is sourced from the original manufacturer or authorized distributors?
All W29GL256PL9B 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 W29GL256PL9B TR meets industry standards.
7.What is the process for return or replacement of W29GL256PL9B TR?
All W29GL256PL9B TR units undergo pre-shipment inspection (PSI). If there is an issue with W29GL256PL9B 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 W29GL256PL9B TR part is unused and in its original packaging.
Return procedure for W29GL256PL9B TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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