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Winbond Electronics Corporation W29GL064CB7S
- Part No.:
- W29GL064CB7S
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
W29GL064CB7S.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,805
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Product details
Overview
W29GL064CB7S from Winbond is a 64 Mbit (8 MB) parallel NOR Flash memory IC with uniform and boot-sector architecture, 3.0 V single-supply operation (2.7–3.6 V), 70 ns random access time, and 25 ns page read access. It supports byte/word configuration via #BYTE pin, hardware write protection/acceleration via #WP/ACC, and CFI-compliant identification for firmware-transparent system integration in embedded controllers and legacy bus-based systems.
For engineers reviewing the W29GL064CB7S datasheet, W29GL064CB7S pinout, W29GL064CB7S application, or W29GL064CB7S equivalent, key selection considerations include its TSOP-48 package compatibility with 48-pin legacy socket designs, boot-sector layout for BIOS/firmware storage, deep power-down mode for low-static-power systems, and EVIO voltage-flexible I/O interface supporting 1.65–VCC logic levels.
Technical Context
The W29GL064CB7S implements a parallel asynchronous interface with dedicated control pins (#CE, #OE, #WE, #RESET, RY/#BY) and supports both byte (X8) and word (X16) data widths selected by the #BYTE pin. Its architecture includes 128 uniform 64 KB sectors or configurable top/bottom boot sectors (eight 8 KB + 127 × 64 KB), enabling flexible firmware partitioning.
It integrates enhanced sector protection using dynamic lock registers and individual non-volatile protection bits, plus a secured silicon sector (256-byte) with factory- or customer-programmable electronic serial number. Embedded algorithms-sector/chip erase, buffer write, suspend/resume, and CFI query-are executed autonomously with status reported via DQ5/DQ6 polling or RY/#BY pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (8 MB) organized as 4,194,304 × 16-bit or 8,388,608 × 8-bit |
| Access Time | 70 ns max random access; enables real-time instruction fetch on 14 MHz+ parallel buses |
| Page Read Speed | 25 ns page access; reduces burst read latency for sequential code execution |
| Write Buffer Size | 16-word (32-byte) buffer; cuts multi-word programming time by up to 4× vs. single-word writes |
| Erase/Program Endurance | 100,000 cycles minimum; 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 VCC; compatible with 3.0 V system rails without level-shifting |
| Operating Temp | –40°C to +85°C; qualified for extended industrial applications |
Pinout & Package
W29GL064CB7S is packaged in a 48-pin TSOP-I (12 × 20 mm) with standard JEDEC footprint, pin-compatible with legacy 48-pin parallel Flash sockets used in industrial HMIs, network routers, and set-top boxes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus supporting full 8 MB addressing in word mode; A-1 alias on DQ15 in byte mode |
| DQ0–DQ14 | Data I/O (X16) | Lower 15 bits of 16-bit data bus; DQ15 functions as A-1 in byte mode |
| DQ15/A-1 | Mode-Dependent Pin | In word mode (#BYTE = VIH): DQ15 = MSB data; in byte mode (#BYTE = VIL): A-1 = LSB address bit |
| #CE | Chip Enable | Active-low chip select; enables device for read/write when #OE and #WE are appropriately asserted |
| #OE | Output Enable | Active-low output gate; controls tri-state of DQ pins independent of #CE/#WE state |
| #WE | Write Enable | Active-low write strobe; latches address/data on falling edge for command sequences |
| #WP/ACC | Hardware Protect/Accelerate | Low = protects top/bottom boot sectors; high + VHH = accelerates programming throughput |
| #BYTE | Bus Width Select | High = X16 word mode (A0–A21); low = X8 byte mode (A-1–A21, DQ15 = A-1) |
| RY/#BY | Ready/Busy Status | Open-drain active-low output indicating ongoing program/erase; replaces software polling overhead |
| #RESET | Hardware Reset | Asynchronous active-low reset; forces device into read mode and aborts pending operations |
Key Features
| Feature | Design Value |
|---|---|
| CFI (Common Flash Interface) | Enables automatic detection of manufacturer ID, device ID, geometry, and timing parameters by host BIOS/bootloader without hard-coded drivers |
| Enhanced Sector Protection | Combines volatile lock register and non-volatile individual sector bits for runtime- and power-cycle-persistent firmware partitioning |
| Secured Silicon Sector | 256-byte factory- or customer-lockable region storing immutable electronic serial number for device authentication and traceability |
| Deep Power-Down Mode | Reduces ICC to ≤1 µA; ideal for battery-backed systems requiring ultra-low standby current between firmware updates |
| EVIO (Enhanced Variable I/O) | Input/output voltage thresholds track EVIO pin (1.65–VCC), eliminating external level shifters when interfacing with mixed-voltage SoCs |
| Suspend/Resume Capability | Pauses active erase or program operations to service high-priority reads, then resumes-critical for real-time interrupt handling |
Applications
| Industrial HMI Firmware Storage | Legacy Network Router Boot Code |
|---|---|
|
Use Scenario: Storing boot firmware and GUI assets in panel-mounted HMIs operating continuously in factory environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Primary non-volatile code storage with direct parallel bus connection to ARM9 or MIPS-based microcontrollers; provides deterministic 70 ns instruction fetch timing. Use Value: Uniform 64 KB sector erase enables atomic firmware updates without corrupting active runtime code; 20-year data retention guarantees unattended operation over equipment lifecycle. |
Use Scenario: Hosting bootloader and configuration images in enterprise-grade Ethernet switches requiring fast cold-boot recovery and secure firmware validation. IC Role / Device Role / Timing Role: Boot-sector Flash mapped to CPU reset vector; top/bottom 8 KB sectors store protected bootloader while remaining space holds upgradeable application firmware. Use Value: Hardware #WP/ACC pin locks bootloader sectors against accidental overwrite; CFI support allows generic bootloader to auto-identify and initialize device without vendor-specific drivers. |
| Medical Diagnostic Equipment BIOS | Automotive Infotainment Head Unit |
|
Use Scenario: Storing certified diagnostic firmware and calibration tables in FDA-regulated ultrasound and MRI subsystems where data integrity and auditability are mandatory. IC Role / Device Role / Timing Role: Secure non-volatile storage with Secured Silicon Sector holding cryptographic keys and device-specific serial numbers for regulatory traceability. Use Value: Factory-locked security sector prevents tampering; 100,000 erase/program cycles support field recalibration and regulatory-mandated firmware revisions over 10+ years. |
Use Scenario: Holding infotainment OS kernel, UI assets, and map data in automotive head units subject to AEC-Q100 Grade 3 qualification requirements. IC Role / Device Role / Timing Role: Parallel NOR Flash interfaced directly to application processor's static memory controller; operates across –40°C to +85°C without thermal derating. Use Value: Deep power-down mode (<1 µA) extends battery backup runtime during vehicle sleep mode; EVIO interface simplifies integration with 1.8 V I/O domains of modern SoCs. |
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, 48-pin TSOP, supports CFI but lacks EVIO and deep power-down mode | Higher access latency; no ultra-low-power standby capability; requires external level shifting for 1.8 V hosts | Choose for cost-sensitive designs where 90 ns timing is acceptable and EVIO/deep power-down are unnecessary |
| MX29GL640EBTI-90G | 64 Mbit, 90 ns access, 48-pin TSOP, includes CFI and sector protection but no secured silicon sector or suspend/resume | No hardware-enforced serial number storage; cannot pause erase/program for interrupt servicing | Prefer when basic firmware storage suffices and advanced security or real-time responsiveness is not required |
Compared with S29GL064S90TFI010 and MX29GL640EBTI-90G, the W29GL064CB7S delivers faster 70 ns access, integrated EVIO for mixed-voltage design simplification, deep power-down for battery-critical systems, and a secured silicon sector for device identity-making it optimal for next-generation industrial and automotive platforms demanding performance, security, and power efficiency.
Availability
W29GL064CB7S is available at Aetrix Electronics and suitable for industrial HMI firmware storage, legacy network router boot code, medical diagnostic BIOS, and automotive infotainment head unit applications requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for W29GL064CB7S 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 SPI/NOR Flash, RAM, and TrustME secure memory products for industrial, automotive, and computing markets.
The W29GL064CB7S belongs to Winbond's W29GL series of parallel NOR Flash devices designed specifically for legacy 3.0 V parallel bus systems requiring high reliability, firmware security, and drop-in compatibility with existing board layouts.
FAQ
What is the pin count and package type of the W29GL064CB7S?
The W29GL064CB7S uses a 48-pin TSOP-I (Thin Small Outline Package) with 12 mm × 20 mm dimensions and standard JEDEC-compliant pinout. This package matches legacy 48-pin parallel Flash footprints, enabling direct replacement in existing industrial and networking hardware without PCB redesign. The W29GL064CB7S pinout supports both X8 and X16 bus configurations via the #BYTE pin, and includes dedicated hardware control lines (#WP/ACC, #RESET, RY/#BY) for robust system integration.
Does the W29GL064CB7S support CFI (Common Flash Interface)?
Yes, the W29GL064CB7S fully supports CFI mode, allowing host systems to automatically query manufacturer ID, device ID, geometry, timing parameters, and feature sets via standardized command sequences. This eliminates the need for hardcoded driver tables and enables generic BIOS or bootloader support across multiple Flash vendors. The CFI implementation in the W29GL064CB7S complies with Intel's Common Flash Interface specification Rev. 1.3, and is verified in the official datasheet Section 7.6.
What is the purpose of the #WP/ACC pin on the W29GL064CB7S?
The #WP/ACC pin on the W29GL064CB7S serves dual functions: hardware write protection and programming acceleration. When held low, it protects the top or bottom boot sectors (depending on configuration) from accidental erasure or programming-even during power-up transients. When driven high and supplied with VHH (12 V), it activates accelerated programming mode, reducing write times significantly. This dual-role pin simplifies system-level protection schemes and improves manufacturing throughput for the W29GL064CB7S without requiring additional GPIO or logic.
How does the W29GL064CB7S handle power-down for low-power applications?
The W29GL064CB7S supports Deep Power-Down mode, reducing standby current to ≤1 µA while retaining all memory contents. Entry is triggered by a specific command sequence followed by #CE high and VCC maintained within specification. Exit requires a hardware reset or #RESET pulse. This mode is especially valuable in battery-backed systems like portable medical devices or automotive telematics, where the W29GL064CB7S must remain powered but inactive for extended periods without draining the backup source.
Can the W29GL064CB7S be used in both byte and word modes?
Yes, the W29GL064CB7S supports both X8 (byte) and X16 (word) data bus configurations, selected dynamically via the #BYTE pin. When #BYTE = VIH, the device operates in 16-bit mode with A0–A21 addressing and DQ0–DQ15 as full data bus. When #BYTE = VIL, it operates in 8-bit mode with A-1 (mapped to DQ15) through A21 addressing and DQ0–DQ7 as data bus. This flexibility allows the W29GL064CB7S to interface seamlessly with 8-bit microcontrollers or 16-bit processors without external glue logic.
W29GL064CB7S Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- -
- Package/Case:
- 48-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:
- 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-TSOP
W29GL064CB7S FAQ
1.How can I place an order for W29GL064CB7S through Aetrix?
Please submit a Request for Quotation (RFQ) for W29GL064CB7S 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 W29GL064CB7S reliable?
The price and inventory of W29GL064CB7S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W29GL064CB7S is usually 5 days.
3.What payment methods are accepted for W29GL064CB7S?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W29GL064CB7S transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W29GL064CB7S?
W29GL064CB7S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W29GL064CB7S 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 W29GL064CB7S?
For technical support, including W29GL064CB7S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W29GL064CB7S requirements.
6.How does Aetrix verify that W29GL064CB7S is sourced from the original manufacturer or authorized distributors?
All W29GL064CB7S 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 W29GL064CB7S meets industry standards.
7.What is the process for return or replacement of W29GL064CB7S?
All W29GL064CB7S units undergo pre-shipment inspection (PSI). If there is an issue with W29GL064CB7S, 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 W29GL064CB7S part is unused and in its original packaging.
Return procedure for W29GL064CB7S:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W29GL064CB7S Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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