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Winbond Electronics Corporation W29GL256PL9T TR
- Part No.:
- W29GL256PL9T TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 56-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
W29GL256PL9T TR.pdf
- Description:
- IC FLASH 256MBIT PARALLEL 56TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,217
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Product details
Overview
W29GL256PL9T TR from Winbond is a 256-Mbit (32 MB), 3.0-V parallel NOR Flash memory with uniform 128-KB sectors, 90 ns random access time, 25 ns page access time, and support for page-mode read, write-buffer programming, and hardware-accelerated programming via #WP/ACC pin - deployed in embedded boot code storage and firmware update applications.
For engineers reviewing the W29GL256PL9T TR datasheet, W29GL256PL9T TR pinout, W29GL256PL9T TR application, or W29GL256PL9T TR equivalent, this device is selected for industrial-grade boot memory requiring CFI-compliant interface, sector-level erase suspend/resume, and hardware write protection with deep power-down mode.
Technical Context
The W29GL256PL9T TR implements a parallel asynchronous interface with #CE/#OE/#WE control logic and supports both word (16-bit DQ[15:0]) and byte (8-bit DQ[7:0], A-1 address) modes via #BYTE pin. It uses an enhanced sector protect architecture with volatile DPB and non-volatile IPB registers, plus lock register bits for granular security sector control.
Its embedded algorithms include automatic chip/sector erase, write-buffer programming (32-word buffer), erase/program suspend/resume, and polling/toggling status detection via DQ5/DQ6. The EVIO pin enables input/output voltage level adaptation across 1.65 V to VCC, supporting mixed-voltage system interfacing without external level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 MB) organized as 2,097,152 × 16-bit or 4,194,304 × 8-bit |
| Access Time | 90 ns random access ensures fast boot code fetch in MCU-based systems |
| Page Access Time | 25 ns enables high-throughput sequential reads within 16-byte pages |
| Erase/Program Endurance | ≥100,000 cycles allows repeated field firmware updates over product lifetime |
| Data Retention | ≥20 years at 85°C supports long-life industrial and automotive deployments |
| Operating Voltage | 2.7–3.6 V single-supply operation simplifies power design vs. dual-rail legacy Flash |
| Temperature Range | –40°C to +85°C industrial grade meets extended environmental requirements |
| Deep Power-Down Current | ≤1 µA reduces standby power in battery-backed or energy-sensitive systems |
Pinout & Package
W29GL256PL9T TR is packaged in a 56-pin TSOP-I (14 mm × 20 mm, 0.5 mm pitch), compliant with JEDEC MO-142. Pin functions are defined for parallel address/data bus, control signals, and dedicated protection/reset/status I/Os.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A23 | Address Inputs | 24-bit address bus supporting full 32 MB addressing in word mode; A-1 reused as DQ15 in byte mode |
| DQ0–DQ14 | Data I/O (bidirectional) | Primary data path; DQ15 functions as A-1 in byte mode (#BYTE = L) |
| #CE | Chip Enable | Active-low chip select enabling memory access only when asserted |
| #OE | Output Enable | Controls output driver enable during read; tri-states outputs when deasserted |
| #WE | Write Enable | Controls latching of data/address on rising edge for write operations |
| #WP/ACC | Hardware Write Protect / Acceleration | Protects top/bottom sector when low; applies VHH to accelerate programming when high |
| RY/#BY | Ready/Busy Status | Open-drain output indicating active erase/program cycle (low) or completion (high) |
| #RESET | Hardware Reset | Forces return to Read mode; required after timeout/failure to restore functional state |
| EVIO | Enhanced Variable I/O Supply | Sets input threshold and output drive levels across 1.65–VCC range for mixed-voltage compatibility |
Key Features
| Feature | Design Value |
|---|---|
| 32-word write buffer | Reduces total programming time for multi-word writes by up to 70% vs. byte-by-byte programming |
| Erase/program suspend/resume | Enables real-time interrupt handling during flash operations without data corruption risk |
| Secured Silicon Sector (256-byte) | Factory- or customer-programmable area for immutable device ID, calibration data, or security keys |
| CFI (Common Flash Interface) | Enables OS/driver auto-detection of geometry, timing, and command set without hard-coded parameters |
| Enhanced Sector Protect (IPB/DPB) | Combines non-volatile individual sector locks with volatile dynamic protection for flexible firmware partitioning |
| Deep power-down mode | Reduces ICC to ≤1 µA while preserving memory contents - critical for low-power IoT endpoints |
Applications
| Industrial PLC Firmware Storage | Automotive ECU Boot Memory |
|---|---|
|
Use Scenario: Storing boot loader and safety-critical firmware in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Primary non-volatile boot memory mapped to CPU address space; accessed during cold start and firmware recovery. Use Value: 20-year data retention and –40°C to +85°C operation ensure reliable boot across 15+ year equipment lifecycles. |
Use Scenario: Holding ASAM-compliant boot code and diagnostic firmware in engine control units subject to ISO 16750-2 stress testing. IC Role / Device Role / Timing Role: Asynchronous parallel NOR Flash providing deterministic <90 ns instruction fetch latency for real-time startup. Use Value: Hardware write protection (#WP/ACC) prevents accidental overwrite during CAN-based reprogramming sessions. |
| Medical Imaging System BIOS | Network Router Configuration Storage |
|
Use Scenario: Storing certified BIOS and FPGA configuration bitstreams in FDA-regulated imaging devices requiring traceable firmware revisions. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for boot integrity verification and secure boot chain initialization. Use Value: Secured Silicon Sector enables permanent embedding of cryptographic keys and device-specific serial numbers. |
Use Scenario: Retaining routing tables, VLAN configurations, and failover policies in carrier-grade routers with zero-downtime upgrades. IC Role / Device Role / Timing Role: High-reliability configuration store supporting concurrent read/write via erase-suspend during live traffic. Use Value: 100,000+ program/erase cycles allow daily firmware patching over 27 years of continuous operation. |
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 |
|---|---|---|---|
| S29GL256S11TFIV10 | Same density and 90 ns access, but uses 64-ball BGA package and lacks EVIO pin | Requires PCB redesign for BGA layout; no voltage-level adaptability for mixed-voltage systems | Select if board space is constrained and EVIO functionality is unnecessary |
| MX29GL256FHT2I-90G | 90 ns access, 100K endurance, but only supports standard sector protect (no IPB/DPB) | Lacks granular non-volatile sector locking needed for secure firmware partitioning | Select for cost-sensitive designs where advanced protection features are not required |
Compared with S29GL256S11TFIV10 and MX29GL256FHT2I-90G, the W29GL256PL9T TR uniquely combines EVIO voltage adaptability, IPB/DPB sector protection, and secured silicon sector - making it optimal for mixed-voltage, security-aware, and long-lifecycle embedded systems.
Availability
W29GL256PL9T TR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot memory, medical imaging BIOS, and network router configuration storage requiring stable component supply and long-term lifecycle assurance.
Supply support for W29GL256PL9T 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/NAND Flash, SRAM, and mobile DRAM for industrial, automotive, and communications markets.
The W29GL256PL9T TR belongs to Winbond's GL series of high-performance parallel NOR Flash, designed specifically for embedded boot code execution, firmware updates, and secure configuration storage in resource-constrained systems.
FAQ
What is the package type and pin count of the W29GL256PL9T TR?
The W29GL256PL9T TR uses a 56-pin TSOP-I (Thin Small Outline Package) with 14 mm × 20 mm body size and 0.5 mm lead pitch. This package is optimized for surface-mount assembly in industrial and automotive PCBs where thermal performance and mechanical reliability are critical. The W29GL256PL9T TR pinout supports full parallel address/data bus operation with dedicated control lines including #WP/ACC, RY/#BY, and EVIO.
Does the W29GL256PL9T TR support both byte and word data interfaces?
Yes, the W29GL256PL9T TR supports configurable 8-bit or 16-bit data bus operation via the #BYTE pin. When #BYTE is low, the device operates in byte mode using DQ[7:0] and repurposes DQ15 as address bit A-1. When #BYTE is high, it operates in word mode using DQ[15:0]. This flexibility allows the W29GL256PL9T TR to interface directly with 8-bit microcontrollers or 16-bit processors without external glue logic.
How does the W29GL256PL9T TR implement hardware write protection?
The W29GL256PL9T TR uses the #WP/ACC pin for dual-function hardware write protection and programming acceleration. When held low, it protects either the top or bottom 128-KB sector regardless of software protection settings. When driven high with VHH (12 V), it accelerates internal programming timing - reducing write time by up to 50%. This dual role makes the W29GL256PL9T TR especially robust for production-line programming and field firmware updates.
What is the purpose of the EVIO pin on the W29GL256PL9T TR?
The EVIO (Enhanced Variable I/O) pin on the W29GL256PL9T TR sets the input threshold voltage and output drive strength for all address, control, and data pins. It accepts a voltage from 1.65 V to VCC, allowing the W29GL256PL9T TR to operate seamlessly in mixed-voltage systems - for example, interfacing with a 1.8 V controller while powered from a 3.3 V rail. This eliminates external level shifters and improves signal integrity in heterogeneous designs.
Can the W29GL256PL9T TR be used in deep power-down mode for ultra-low-power applications?
Yes, the W29GL256PL9T TR supports deep power-down mode with typical current draw of ≤1 µA. In this state, the device retains all stored data while disabling internal circuitry except for minimal leakage paths. Recovery time is 100 µs max, and the device returns to standby mode upon exit. This capability makes the W29GL256PL9T TR suitable for battery-powered IoT sensors, portable medical devices, and other applications demanding multi-year operation on coin-cell batteries.
W29GL256PL9T TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- -
- Package/Case:
- 56-TFSOP (0.724", 18.40mm Width)
- 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:
- 56-TSOP
W29GL256PL9T TR FAQ
1.How can I place an order for W29GL256PL9T TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W29GL256PL9T 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 W29GL256PL9T TR reliable?
The price and inventory of W29GL256PL9T TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W29GL256PL9T TR is usually 5 days.
3.What payment methods are accepted for W29GL256PL9T TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W29GL256PL9T TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W29GL256PL9T TR?
W29GL256PL9T TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W29GL256PL9T 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 W29GL256PL9T TR?
For technical support, including W29GL256PL9T TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W29GL256PL9T TR requirements.
6.How does Aetrix verify that W29GL256PL9T TR is sourced from the original manufacturer or authorized distributors?
All W29GL256PL9T 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 W29GL256PL9T TR meets industry standards.
7.What is the process for return or replacement of W29GL256PL9T TR?
All W29GL256PL9T TR units undergo pre-shipment inspection (PSI). If there is an issue with W29GL256PL9T 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 W29GL256PL9T TR part is unused and in its original packaging.
Return procedure for W29GL256PL9T TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W29GL256PL9T TR Tags
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