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Winbond Electronics Corporation W29GL064CB7A
- Part No.:
- W29GL064CB7A
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
W29GL064CB7A.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,715
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Product details
Overview
W29GL064CB7A from Winbond is a 64 Mbit (8 MB) parallel NOR Flash memory IC designed for embedded system code storage and data logging, featuring 70 ns random access time, 25 ns page read speed, uniform 64 KB sectors (128 total), single 3.0 V supply operation (2.7–3.6 V), and CFI-compliant interface for firmware compatibility in microcontroller-based boot applications.
For engineers reviewing the W29GL064CB7A datasheet, W29GL064CB7A pinout, W29GL064CB7A application, or W29GL064CB7A equivalent, this device supports high-reliability boot code execution, sector-protected firmware updates, and deep power-down mode for low-power embedded systems requiring >100,000 program/erase cycles and >20-year data retention.
Technical Context
The W29GL064CB7A implements a parallel asynchronous interface with #CE/#OE/#WE control logic, supporting byte/word mode via #BYTE pin, hardware reset (#RESET), and ready/busy status reporting (RY/#BY). Its architecture includes a 16-word write buffer and 8-word page read buffer to accelerate sequential operations.
It integrates Enhanced Sector Protect with dynamic lock register and individual non-volatile protection, plus a dedicated 256-byte secured silicon sector with factory- or customer-programmable electronic serial number. EVIO (Enhanced Variable IO) allows input/output voltage level tracking from 1.65 V to VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (8 MB) - supports full boot image storage for mid-range MCUs without external memory expansion. |
| Access Time | 70 ns random read - enables direct XIP (eXecute-In-Place) execution from flash in real-time embedded systems. |
| Page Read Speed | 25 ns - reduces latency during burst instruction fetch or configuration table reads. |
| Write Buffer Size | 16-word (32-byte) - cuts multi-word programming time by up to 4× versus single-word writes. |
| Endurance | 100,000 program/erase cycles - ensures field-upgrade reliability across industrial product lifecycles. |
| Data Retention | 20 years at 85°C - validated for automotive and industrial environments with extended thermal stress. |
| Supply Voltage | 2.7–3.6 V - compatible with standard 3.3 V logic rails and tolerant of brown-out conditions. |
| Operating Temp | –40°C to +85°C - qualified for extended temperature industrial and networking equipment. |
Pinout & Package
W29GL064CB7A is packaged in 48-pin TSOP (12 × 20 mm), configured as Boot Sector (Top/Bottom) variant per ordering code B7A. Pin functions are defined for parallel address/data bus operation with hardware control signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus supporting full 8 MB addressing; A-1 alias on DQ15 in byte mode. |
| DQ0–DQ14 | Data I/O (x16) | 15-bit bidirectional data bus; DQ15 serves as A-1 in byte mode (#BYTE = VIL). |
| #CE | Chip Enable | Active-low chip select enabling memory access; required for all read/write operations. |
| #OE | Output Enable | Active-low control for output buffer; tri-states DQ lines when inactive to prevent bus contention. |
| #WE | Write Enable | Active-low signal latching write data; timing-critical for instruction sequence validity. |
| #RESET | Hardware Reset | Asynchronous reset forcing return to Read mode; clears pending erase/program states. |
| RY/#BY | Ready/Busy Status | Open-drain output indicating operation completion (high = ready, low = busy). |
| #WP/ACC | Write Protect / Acceleration | Protects top/bottom boot sectors when low; applies VHH to accelerate programming when high. |
| #BYTE | Byte/Word Mode Select | Low = byte mode (DQ0–DQ7 active, A-1 on DQ15); high = word mode (DQ0–DQ15 active). |
| EVIO | Variable IO Reference | Input setting logic threshold for all address/control/DQ pins (1.65 V to VCC); no-connect in LFBGA64 T/B config. |
Key Features
| Feature | Design Value |
|---|---|
| CFI Interface Support | Enables automatic firmware detection and parameter querying without hard-coded driver assumptions. |
| Secured Silicon Sector | 256-byte factory- or customer-lockable region storing immutable electronic serial number for device authentication. |
| Erase Suspend/Resume | Allows interrupting long sector erases to service higher-priority reads, then resuming without data loss. |
| Deep Power Down Mode | Reduces standby current to ≤1 µA - critical for battery-backed or energy-harvesting embedded nodes. |
| Enhanced Sector Protect | Combines volatile DPB and non-volatile IPB mechanisms for flexible, field-updatable firmware partitioning. |
| Accelerated Programming | VHH applied via #WP/ACC cuts typical word program time by ~50%, improving manufacturing throughput. |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Code |
|---|---|
|
Use Scenario: Storing firmware images and configuration tables in programmable logic controllers operating continuously in factory environments. IC Role / Device Role / Timing Role: Primary boot memory executing XIP code directly from address space, with sector-locked bootloader region. Use Value: 20-year data retention and 100,000-cycle endurance ensure firmware integrity over 15+ year equipment lifespans without refresh. |
Use Scenario: Hosting boot ROM and OS kernel for head-unit microcontrollers requiring fast startup and secure firmware validation. IC Role / Device Role / Timing Role: Parallel NOR Flash providing deterministic 70 ns read latency for cold-boot execution and CFI-based driver auto-configuration. Use Value: Secured Silicon Sector stores unique device ID used in TLS certificate binding and anti-cloning security protocols. |
| Network Router Configuration Archive | Medical Diagnostic Device Log Storage |
|
Use Scenario: Retaining persistent configuration profiles, certificates, and fail-safe recovery images in enterprise-grade routers. IC Role / Device Role / Timing Role: Non-volatile archive memory with dual-sector protection: top sector for bootloader, bottom for user config. Use Value: #WP/ACC hardware write protect prevents accidental overwrite during remote firmware updates over insecure channels. |
Use Scenario: Recording calibration logs, sensor diagnostics, and audit trails in FDA-class II medical devices with strict data integrity requirements. IC Role / Device Role / Timing Role: High-reliability data logger using page-mode reads and buffered writes to minimize flash wear during frequent small-record updates. Use Value: Write buffer reduces write latency by 75% vs. single-word writes, enabling real-time logging without MCU task blocking. |
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 |
|---|---|---|---|
| S29GL064S90TFI010 | 64 Mbit, 90 ns access, 3.0 V, 56-pin TSOP - slower random access, no EVIO, no deep power-down mode. | Lacks deep power-down and EVIO; suitable only where ultra-low standby current or adaptive I/O thresholds are not required. | Select when legacy board layout uses 56-pin TSOP and firmware does not require accelerated programming or sub-µA sleep. |
| MX29GL640EHTI-90G | 64 Mbit, 90 ns access, 3.0 V, 48-pin TSOP - no CFI support, no secured silicon sector, no erase suspend/resume. | Missing CFI and security features; requires fixed driver integration and offers no field-upgradable protection granularity. | Choose only for cost-sensitive, static-design applications where firmware is never updated post-deployment and security is not mandated. |
Compared with S29GL064S90TFI010 and MX29GL640EHTI-90G, the W29GL064CB7A delivers faster 70 ns access, integrated deep power-down (<1 µA), EVIO adaptability, and CFI-compliant firmware portability - making it optimal for next-generation embedded systems requiring field-upgradability, low-power operation, and hardware-enforced security.
Availability
W29GL064CB7A is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot code, and network router configuration archive applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for W29GL064CB7A 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, RAM, and trusted computing components since 1987.
The W29GL064CB7A belongs to Winbond's GL series of parallel NOR Flash memories, engineered for embedded boot code storage with enhanced reliability, security, and low-power operation in industrial and automotive systems.
FAQ
What is the pin count and package type of the W29GL064CB7A?
The W29GL064CB7A uses a 48-pin TSOP (Thin Small Outline Package) with 12 mm × 20 mm dimensions, configured as a Top/Bottom Boot Sector variant. This package matches JEDEC-standard footprints for drop-in replacement in existing 48-pin parallel Flash designs and supports both byte and word data interfaces via the #BYTE pin.
Does the W29GL064CB7A support CFI (Common Flash Interface)?
Yes, the W29GL064CB7A fully supports CFI mode, allowing host systems to dynamically query device parameters-including manufacturer ID, device ID, geometry, and timing-without relying on hardcoded driver tables. This capability simplifies firmware portability across different Flash vendors and densities in the W29GL064CB7A's design ecosystem.
How does the secured silicon sector function in the W29GL064CB7A?
The W29GL064CB7A includes a dedicated 256-byte secured silicon sector that can be permanently locked by the customer or pre-programmed at factory. It stores an 8-word (16-byte) random electronic serial number used for device authentication, anti-counterfeiting, and secure key binding - accessible only through specific CFI and security instruction sequences in the W29GL064CB7A.
What is the purpose of the EVIO pin on the W29GL064CB7A?
The EVIO (Enhanced Variable IO) pin on the W29GL064CB7A sets the input voltage threshold for all address, control, and data pins, scaling from 1.65 V to VCC. This allows the W29GL064CB7A to interface reliably with mixed-voltage SoCs and FPGAs without level shifters, maintaining timing integrity across varying core logic voltages while preserving full 70 ns access performance.
Can the W29GL064CB7A enter a low-power state, and what is its current draw?
Yes, the W29GL064CB7A supports Deep Power Down mode, activated via a specific command sequence, reducing standby current to ≤1 µA. This ultra-low-power state is essential for battery-operated or energy-harvesting systems where the W29GL064CB7A must retain stored data for years while drawing negligible current between wake events.
W29GL064CB7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- -
- Package/Case:
- 48-TFBGA
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 64Mbit
- Memory Organization:
- 8M x 8, 4M 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:
- 48-TFBGA (6x8)
W29GL064CB7A FAQ
1.How can I place an order for W29GL064CB7A through Aetrix?
Please submit a Request for Quotation (RFQ) for W29GL064CB7A 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 W29GL064CB7A reliable?
The price and inventory of W29GL064CB7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W29GL064CB7A is usually 5 days.
3.What payment methods are accepted for W29GL064CB7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W29GL064CB7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W29GL064CB7A?
W29GL064CB7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W29GL064CB7A 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 W29GL064CB7A?
For technical support, including W29GL064CB7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W29GL064CB7A requirements.
6.How does Aetrix verify that W29GL064CB7A is sourced from the original manufacturer or authorized distributors?
All W29GL064CB7A 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 W29GL064CB7A meets industry standards.
7.What is the process for return or replacement of W29GL064CB7A?
All W29GL064CB7A units undergo pre-shipment inspection (PSI). If there is an issue with W29GL064CB7A, 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 W29GL064CB7A part is unused and in its original packaging.
Return procedure for W29GL064CB7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W29GL064CB7A Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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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
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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