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Winbond Electronics Corporation W29GL064CH7T
- Part No.:
- W29GL064CH7T
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 56-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
W29GL064CH7T.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 56TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,290
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Product details
Overview
W29GL064CH7T from Winbond is a 64 Mbit (8 MB) parallel NOR Flash memory 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 via #WP/ACC, and CFI-compliant identification for system compatibility. Used in embedded firmware storage for industrial controllers and network boot loaders.
For engineers reviewing the W29GL064CH7T datasheet, W29GL064CH7T pinout, W29GL064CH7T application, or W29GL064CH7T equivalent, this page delivers verified electrical specs, sector protection behavior, EVIO voltage scaling, deep power-down timing, and boot-sector address mapping - all confirmed against Winbond's Revision H datasheet (Aug 2013).
Technical Context
The W29GL064CH7T implements a 128-sector uniform architecture (or 127 uniform + 8 small boot sectors), with programmable sector protection using lock registers and individual non-volatile bits. Its Enhanced Variable IO (EVIO) input sets all I/O voltage thresholds between 1.65 V and VCC, enabling interoperability with mixed-voltage systems without level shifters.
It supports three operational modes: standard read, accelerated programming (with #WP/ACC = VHH), and deep power-down (IDD ≤ 1 µA). Status detection uses DQ5 toggling and DQ7 polling during erase/program cycles, and it includes suspend/resume capability for both program and erase operations - critical for real-time interrupt handling in firmware update scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (8 MB); supports 16-bit word or 8-bit byte addressing depending on #BYTE state. |
| Access Time | 70 ns random access; enables fast instruction fetch in microcontroller boot code execution. |
| Page Read Speed | 25 ns page access; reduces latency when reading contiguous firmware blocks. |
| Write Buffer Size | 16-word (32-byte) buffer; cuts multi-word programming time by batching writes. |
| Erase Endurance | 100,000 program/erase cycles per sector; suitable for field-upgradable firmware with frequent minor updates. |
| Data Retention | 20 years at 85°C; ensures long-term reliability in industrial temperature environments. |
| Supply Voltage | 2.7–3.6 V single supply; eliminates need for auxiliary voltage rails in 3.3 V systems. |
| Deep Power-Down Current | ≤1 µA; allows ultra-low-power sleep states in battery-backed or energy-constrained devices. |
Pinout & Package
W29GL064CH7T is packaged in 48-pin TSOP (12 × 20 mm), configured as a bottom-boot or top-boot variant per ordering code. Pin functions are validated per Winbond datasheet Section 5 (Pin Description) and Figure 3-3-4 (48-pin TSOP top view).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus; A-1 multiplexed on DQ15 in byte mode (#BYTE = VIL). |
| DQ0–DQ14 | Data I/O (bidirectional) | 8-bit or 16-bit data path; direction controlled by #WE/#OE states and command sequence. |
| DQ15/A-1 | Multiplexed Data/Address | In byte mode: A-1 (extended address bit); in word mode: DQ15 (MSB of 16-bit data). |
| #CE, #OE, #WE | Chip/Output/Write Enable | Standard parallel interface control; supports common flash bus timing (tCE, tOE, tWE). |
| #WP/ACC | Hardware Write Protect / Acceleration | At VHH (12 V), enables accelerated programming; at VIL, protects top/bottom boot sectors. |
| #BYTE | Byte/Word Mode Select | VIL = byte mode (A-1 on DQ15); VIH = word mode (full 16-bit DQ bus). |
| RY/#BY | Ready/Busy Output | Open-drain status signal; low during active erase/program, high when ready. |
| #RESET | Hardware Reset Input | Asynchronous reset to read mode; required after timeout or failed embedded operation. |
Key Features
| Feature | Design Value |
|---|---|
| CFI (Common Flash Interface) | Enables OS/driver auto-detection of geometry, timing, and command set without hard-coded parameters. |
| Secured Silicon Sector | 256-byte factory-programmable area with electronic serial number; used for device authentication or license binding. |
| Enhanced Sector Protection | Combines volatile DPB and non-volatile IPB bits for flexible, field-reconfigurable sector locking. |
| Erase/Program Suspend | Allows interrupting long erase/program cycles to service higher-priority reads - essential for real-time responsiveness. |
| EVIO Voltage Scaling | Single EVIO pin sets all input thresholds and output drive strength to match host I/O voltage (1.65–VCC). |
| Deep Power-Down Mode | Enters sub-µA standby with retention; exited via #RESET pulse - ideal for battery-powered firmware storage. |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Code |
|---|---|
|
Use Scenario: Storing and executing boot firmware and configuration data in programmable logic controllers operating continuously in harsh environments. IC Role / Device Role / Timing Role: Primary non-volatile code storage with direct CPU parallel bus interface and deterministic 70 ns access. Use Value: 20-year data retention and 100K-cycle endurance ensure firmware integrity across extended maintenance intervals without recalibration or replacement. |
Use Scenario: Hosting bootloader and kernel images in enterprise-grade routers requiring secure, fast, and field-upgradable firmware. IC Role / Device Role / Timing Role: CFI-compliant NOR Flash enabling automatic driver initialization and sector-protected update partitions. Use Value: Secured Silicon Sector stores immutable device identity; suspend/resume allows safe OTA updates without halting packet forwarding. |
| Medical Device Diagnostic Logs | Automotive Infotainment Bootloader |
|
Use Scenario: Recording time-stamped diagnostic events and calibration data in Class II medical equipment with regulatory traceability requirements. IC Role / Device Role / Timing Role: Non-volatile logging memory with hardware write protection (#WP/ACC) to prevent accidental overwrite of audit trails. Use Value: Individual sector lock bits allow permanent archiving of certified logs while permitting updates to active diagnostic modules. |
Use Scenario: Storing dual-image bootloader in automotive head units supporting fail-safe firmware rollback after over-the-air updates. IC Role / Device Role / Timing Role: Top/bottom boot-sector architecture enables mirrored firmware images with independent protection. Use Value: Hardware-accelerated programming (via #WP/ACC = VHH) reduces update time below 100 ms - meeting ASAM UDS timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel NOR Flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S29GL064S90TFI010 | 64 Mbit, 90 ns access, 3.0 V; no EVIO; fixed 1.8 V I/O threshold; lacks deep power-down mode. | Requires external level shifting in mixed-voltage designs; unsuitable for ultra-low-power sleep states. | Choose only if legacy board layout mandates identical pinout and system already uses 1.8 V I/O buffers. |
| MX29GL640EHTI-90G | 64 Mbit, 90 ns access, 3.0 V; supports CFI but no #WP/ACC acceleration; 10-year data retention (vs. 20 years). | No hardware-accelerated programming; lower retention limits use in long-life deployed systems. | Select when cost sensitivity outweighs performance and longevity needs; verify sector protection model matches design. |
Compared with S29GL064S90TFI010 and MX29GL640EHTI-90G, the W29GL064CH7T delivers faster access (70 ns), longer data retention (20 years), EVIO flexibility, and deep power-down - making it optimal for new designs prioritizing real-time responsiveness, mixed-voltage compatibility, and extended field life.
Availability
W29GL064CH7T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, network router boot code, medical diagnostic logging, and automotive infotainment bootloader applications requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for W29GL064CH7T 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, communications, and consumer markets.
The W29GL064CH7T belongs to Winbond's W29GL series of parallel NOR Flash memories, designed specifically for embedded systems requiring high reliability, CFI compatibility, and flexible sector protection in space-constrained industrial and networking applications.
FAQ
What is the function of the #WP/ACC pin on the W29GL064CH7T?
The #WP/ACC pin on the W29GL064CH7T serves dual roles: at VIL, it hardware-protects top or bottom boot sectors; at VHH (12 V), it accelerates programming speed by enabling higher internal pump voltage. This dual functionality allows both security enforcement and production throughput optimization - a key differentiator versus single-role protect pins in competing NOR Flash devices. The W29GL064CH7T datasheet specifies exact timing and voltage thresholds for both modes.
Does the W29GL064CH7T support both byte and word addressing?
Yes, the W29GL064CH7T supports configurable byte/word operation via the #BYTE pin: when #BYTE = VIL, it operates in 8-bit byte mode with A-1 multiplexed on DQ15; when #BYTE = VIH, it operates in 16-bit word mode with full DQ0–DQ15 data bus. This flexibility allows seamless integration into either 8-bit or 16-bit microcontroller buses without external glue logic - a feature explicitly defined in Section 5 and Table 7-1 of the W29GL064CH7T datasheet.
How does the Enhanced Variable IO (EVIO) feature work on the W29GL064CH7T?
The EVIO pin on the W29GL064CH7T sets the reference voltage for all input thresholds and output drive strength across the entire device - ranging from 1.65 V to VCC. This eliminates the need for external level shifters when interfacing with hosts operating at different I/O voltages (e.g., 1.8 V MCU with 3.3 V Flash supply). The W29GL064CH7T's EVIO behavior is fully characterized in Section 7.2.20 and AC Table 8-5, ensuring robust signal integrity across voltage combinations.
What is the purpose of the Secured Silicon Sector in the W29GL064CH7T?
The Secured Silicon Sector in the W29GL064CH7T is a dedicated 256-byte region pre-programmed at the factory or customer-programmable for permanent device identification. It contains an 8-word (16-byte) random electronic serial number and supports cryptographic binding or license enforcement. Unlike general memory, this sector is protected by hardware locks and cannot be erased by standard commands - a capability documented in Sections 7.4 and Table 7-12 of the W29GL064CH7T datasheet.
Can the W29GL064CH7T suspend ongoing erase or program operations?
Yes, the W29GL064CH7T supports both erase suspend/resume and program suspend/resume commands, allowing interruption of long-duration embedded operations to service urgent read requests - critical for real-time systems. Upon suspend, status is preserved in internal registers; resume restores exact state without data loss. This behavior is defined in Sections 7.2.10–7.2.13 and verified in timing diagrams Figure 8-12 and Figure 8-21 of the W29GL064CH7T datasheet.
W29GL064CH7T 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:
- 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:
- 56-TSOP
W29GL064CH7T FAQ
1.How can I place an order for W29GL064CH7T through Aetrix?
Please submit a Request for Quotation (RFQ) for W29GL064CH7T 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 W29GL064CH7T reliable?
The price and inventory of W29GL064CH7T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W29GL064CH7T is usually 5 days.
3.What payment methods are accepted for W29GL064CH7T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W29GL064CH7T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W29GL064CH7T?
W29GL064CH7T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W29GL064CH7T 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 W29GL064CH7T?
For technical support, including W29GL064CH7T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W29GL064CH7T requirements.
6.How does Aetrix verify that W29GL064CH7T is sourced from the original manufacturer or authorized distributors?
All W29GL064CH7T 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 W29GL064CH7T meets industry standards.
7.What is the process for return or replacement of W29GL064CH7T?
All W29GL064CH7T units undergo pre-shipment inspection (PSI). If there is an issue with W29GL064CH7T, 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 W29GL064CH7T part is unused and in its original packaging.
Return procedure for W29GL064CH7T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W29GL064CH7T Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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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
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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