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Winbond Electronics Corporation W29GL032CL7T
- Part No.:
- W29GL032CL7T
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 56-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
W29GL032CL7T.pdf
- Description:
- IC FLASH 32MBIT PARALLEL 56TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,736
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Product details
Overview
W29GL032CL7T from Winbond Electronics is a 32-Mbit (4 MB) parallel NOR Flash memory IC with uniform and boot-sector architecture, 70 ns random access time, 25 ns page read speed, and single 3.0 V supply (2.7–3.6 V) operation. It supports byte/word configuration via #BYTE pin, includes a 16-word write buffer for accelerated programming, and integrates hardware write protection and deep power-down mode for embedded control and firmware storage applications.
For engineers reviewing the W29GL032CL7T datasheet, W29GL032CL7T pinout, W29GL032CL7T application, or W29GL032CL7T equivalent, key selection considerations include sector protection granularity (uniform vs. top/bottom boot), EVIO voltage flexibility (1.65–VCC), CFI interface compatibility, and verified erase/program endurance (>100,000 cycles).
Technical Context
The W29GL032CL7T implements a parallel asynchronous interface with dedicated #CE, #OE, and #WE controls, supporting both byte (DQ[7:0]) and word (DQ[15:0]) data bus modes selected by the #BYTE pin. Its architecture includes 64 uniform sectors (64 KB each) or configurable top/bottom boot sectors (eight 4 KB + fifty-five 64 KB), with programmable lock registers and individual sector protect/unprotect capability.
Functional operation relies on command-based instruction sequences latched on falling #WE/#CE edges, with status monitored via RY/#BY output or DQ7 toggling and DQ6 polling. It supports erase suspend/resume, program suspend/resume, and accelerated programming when #WP/ACC is driven to VHH, enabling concurrent background operations in real-time systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (4 MB) organized as 2M × 16 or 4M × 8 |
| Access Time | 70 ns max random access - enables direct code execution (XIP) from flash in microcontroller boot loaders |
| Page Read Speed | 25 ns - reduces latency during sequential firmware reads and table lookups |
| Write Buffer Size | 16-word (32-byte) buffer - cuts multi-word programming time by up to 5× versus single-word writes |
| Erase Endurance | >100,000 program/erase cycles per sector - supports field firmware updates over product lifetime |
| Data Retention | >20 years at 85°C - ensures long-term reliability in industrial temperature environments |
| Supply Voltage | 2.7–3.6 V single supply - simplifies power design and eliminates level-shifting for 3.3 V systems |
| Operating Temp | –40°C to +85°C - qualified for extended industrial and automotive under-hood applications |
Pinout & Package
W29GL032CL7T is packaged in a 48-pin TSOP (12 × 20 mm) with standard JEDEC footprint. Pin functions are electrically defined per Winbond's official pin description table and validated across all boot-sector configurations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | 21-bit address bus supporting full 4 MB addressing in word mode; A-1 alias on DQ15 in byte mode |
| DQ0–DQ14 | Data I/O (bidirectional) | 8-bit or 16-bit data path depending on #BYTE state; high-impedance when disabled |
| DQ15/A-1 | Word/Byte Mode Select Input | In byte mode (#BYTE = VIL), serves as A-1 for extended addressing; in word mode, functions as DQ15 |
| #CE | Chip Enable | Active-low enable controlling device selection; must be asserted before #OE/#WE for valid access |
| #OE | Output Enable | Active-low control of output buffer; used to gate read data without affecting internal state |
| #WE | Write Enable | Active-low control for latching address/data during programming and erase commands |
| #WP/ACC | Hardware Write Protect / Acceleration | Protects top/bottom sectors when low; enables VHH-accelerated programming when driven to 12 V |
| #RESET | Hardware Reset | Asynchronous active-low reset that forces device into read mode and clears internal command state |
| RY/#BY | Ready/Busy Status Output | Open-drain output indicating ongoing erase/program operation (low) or completion (high) |
| #BYTE | Bus Width Configuration | High = 16-bit word mode (A20–A0); low = 8-bit byte mode (A20–A-1 via DQ15) |
| EVIO | Enhanced Variable I/O Supply | Sets input/output voltage thresholds (1.65–VCC); NC in top/bottom LFBGA64 variants but functional in TSOP |
| VCC / VSS | Power / Ground | Single 3.0 V supply; decoupling required per AC timing specs to maintain 70 ns access integrity |
Key Features
| Feature | Design Value |
|---|---|
| CFI (Common Flash Interface) | Enables automatic detection of device geometry, timing, and command sets by host BIOS/bootloader without hard-coded drivers |
| Secured Silicon Sector | 256-byte factory-programmable region with electronic serial number - used for device authentication and secure boot key storage |
| Enhanced Sector Protection | Combines volatile DPB and non-volatile IPB registers to support dynamic, field-updatable sector locking without permanent fuse-based restrictions |
| Deep Power-Down Mode | Reduces standby current to ≤1 µA - extends battery life in always-on IoT edge nodes and portable diagnostic tools |
| Erase/Program Suspend | Allows interrupting long erase/program operations to service high-priority reads - critical for real-time HMI and safety-critical firmware updates |
| Compatible Manufacturer ID | Reports industry-standard JEDEC manufacturer code (0x01) - enables drop-in replacement for legacy AMIC, Macronix, and Spansion designs |
Applications
| Industrial PLC Firmware Storage | Automotive ECU Boot Memory |
|---|---|
|
Use Scenario: Storing bootloader, CAN protocol stack, and calibration tables in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Non-volatile firmware storage with XIP-capable 70 ns access, enabling deterministic boot timing and runtime code fetch. Use Value: Uniform 64 KB sector erase supports modular firmware updates without full chip reprogramming; >20-year retention ensures lifetime reliability without recalibration. |
Use Scenario: Holding boot code and safety-critical firmware in engine control units requiring ASIL-B compliance and fail-safe restart capability. IC Role / Device Role / Timing Role: Primary boot memory interfaced directly to MCU's external bus controller, leveraging RY/#BY for precise erase/program status monitoring. Use Value: Deep power-down mode (<1 µA) minimizes parasitic drain during vehicle sleep; secured silicon sector stores cryptographic keys for secure boot verification. |
| Medical Imaging System BIOS | Network Router Configuration Storage |
|
Use Scenario: Storing FPGA configuration bitstreams and diagnostic firmware in portable ultrasound and MRI subsystems requiring rapid cold-start recovery. IC Role / Device Role / Timing Role: High-speed parallel interface delivering 25 ns page reads to accelerate FPGA reconfiguration and image processing initialization. Use Value: 16-word write buffer reduces field firmware update time by >70% versus legacy parallel flash; CFI support simplifies BIOS integration across multiple OEM platforms. |
Use Scenario: Retaining routing tables, VLAN settings, and security policies in enterprise-grade Layer 3 switches exposed to frequent power cycling. IC Role / Device Role / Timing Role: Persistent configuration storage accessed via CPU's memory-mapped I/O, using #RESET for guaranteed post-power-up initialization. Use Value: Top/bottom boot sector architecture isolates boot code from user-configurable sectors, preventing accidental corruption during remote firmware upgrades. |
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 |
|---|---|---|---|
| S29GL032N90TFI010 | 48-pin TSOP, 70 ns access, same density and voltage range; lacks EVIO and deep power-down mode | No hardware-accelerated programming or ultra-low-power sleep - unsuitable for battery-backed or energy-constrained designs | Choose when CFI compatibility and sector protection are primary requirements, and power budget allows higher standby current. |
| MX29GL320EHTI-90G | 48-pin TSOP, 90 ns access, identical boot-sector layout; supports only standard 3.3 V (3.0–3.6 V), no EVIO flexibility | Slower random access limits XIP performance; no #WP/ACC acceleration - longer production programming times | Prefer for cost-sensitive industrial control where 90 ns latency is acceptable and VHH acceleration is unnecessary. |
Compared with S29GL032N90TFI010 and MX29GL320EHTI-90G, the W29GL032CL7T delivers faster page reads (25 ns), lower deep power-down current (≤1 µA), and EVIO voltage adaptability - making it optimal for portable, real-time, and power-constrained embedded systems requiring field-upgradable firmware.
Availability
W29GL032CL7T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot memory, medical imaging BIOS, network router configuration storage, and embedded system code execution requiring stable component supply across multi-year production cycles.
Supply support for W29GL032CL7T 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, serving industrial, automotive, and communications markets since 1987.
The W29GL032CL7T belongs to Winbond's W29GL series of high-reliability parallel NOR Flash devices, designed specifically for embedded firmware storage, boot code execution, and secure configuration retention in mission-critical systems.
FAQ
What is the maximum operating frequency supported by the W29GL032CL7T?
The W29GL032CL7T is an asynchronous parallel Flash device with no clock input; its performance is defined by access timing parameters-not frequency. It guarantees 70 ns random access and 25 ns page read times under specified VCC and temperature conditions. The W29GL032CL7T does not operate at a fixed MHz clock rate but interfaces directly with microcontroller address/data buses using #CE, #OE, and #WE handshaking signals.
Does the W29GL032CL7T support both 8-bit and 16-bit data bus widths?
Yes, the W29GL032CL7T supports configurable bus width via the #BYTE pin: when #BYTE = VIH, it operates in 16-bit word mode (DQ0–DQ15 active); when #BYTE = VIL, it operates in 8-bit byte mode (DQ0–DQ7 active, with DQ15 repurposed as A-1). This dual-mode capability allows flexible integration with 8-bit and 16-bit microcontrollers without external glue logic.
How does the secured silicon sector function in the W29GL032CL7T?
The secured silicon sector in the W29GL032CL7T is a dedicated 256-byte (128-word) region pre-programmed at the factory or customer-programmable for permanent identification. It contains an 8-word (16-byte) random electronic serial number and supports secure entry/exit protocols. This sector is protected by hardware locks and cannot be erased or rewritten without explicit unlock sequences, making it ideal for storing cryptographic keys or device-specific credentials in the W29GL032CL7T.
Can the W29GL032CL7T be used as a direct replacement for older AMD/Spansion S29GL032N devices?
Yes, the W29GL032CL7T reports the same JEDEC manufacturer ID (0x01) and device ID as AMD/Spansion S29GL032N parts and shares identical pinout, timing, and command set in uniform sector mode. However, W29GL032CL7T adds EVIO, deep power-down, and #WP/ACC acceleration-features absent in legacy S29GL032N. Firmware compatibility is maintained, but full benefit requires enabling new features in host software.
What is the purpose of the #WP/ACC pin on the W29GL032CL7T?
The #WP/ACC pin on the W29GL032CL7T serves two roles: when held low (VIL), it hardware-protects top or bottom boot sectors; when driven to VHH (~12 V), it enables accelerated programming, reducing single-word write time by ~50%. This dual functionality allows both robust field protection and high-throughput manufacturing programming - a key differentiator of the W29GL032CL7T in production and deployment scenarios.
W29GL032CL7T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- -
- Package/Case:
- 56-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 32Mbit
- Memory Organization:
- 4M x 8, 2M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 70ns
- Access Time:
- 70 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
W29GL032CL7T FAQ
1.How can I place an order for W29GL032CL7T through Aetrix?
Please submit a Request for Quotation (RFQ) for W29GL032CL7T 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 W29GL032CL7T reliable?
The price and inventory of W29GL032CL7T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W29GL032CL7T is usually 5 days.
3.What payment methods are accepted for W29GL032CL7T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W29GL032CL7T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W29GL032CL7T?
W29GL032CL7T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W29GL032CL7T 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 W29GL032CL7T?
For technical support, including W29GL032CL7T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W29GL032CL7T requirements.
6.How does Aetrix verify that W29GL032CL7T is sourced from the original manufacturer or authorized distributors?
All W29GL032CL7T 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 W29GL032CL7T meets industry standards.
7.What is the process for return or replacement of W29GL032CL7T?
All W29GL032CL7T units undergo pre-shipment inspection (PSI). If there is an issue with W29GL032CL7T, 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 W29GL032CL7T part is unused and in its original packaging.
Return procedure for W29GL032CL7T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W29GL032CL7T Tags
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