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Winbond Electronics Corporation W29GL128CL9B
- Part No.:
- W29GL128CL9B
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 64-LBGA
- Datasheet:
-
W29GL128CL9B.pdf
- Description:
- IC FLASH 128MBIT PAR 64LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,068
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Product details
Overview
W29GL128CL9B from Winbond is a 128-Mbit (16 MB) parallel NOR Flash memory with uniform 128 kB sectors, 90 ns random access time, 25 ns page access time, and single 3.0 V supply (2.7–3.6 V) operation. It supports byte/word mode via #BYTE pin, features a 32-word write buffer and 8-word page read buffer, and is used in embedded boot code storage for industrial controllers and network equipment.
For engineers reviewing the W29GL128CL9B datasheet, W29GL128CL9B pinout, W29GL128CL9B application, or W29GL128CL9B equivalent, key selection criteria include sector erase suspend/resume capability, CFI-compliant identification, hardware write protection via #WP/ACC, and deep power-down mode for low-power standby.
Technical Context
The W29GL128CL9B implements a parallel asynchronous interface with dedicated control pins (#CE, #OE, #WE, #RESET, RY/#BY) and supports both byte (DQ[7:0]) and word (DQ[15:0]) data widths selected by #BYTE. Its architecture includes 128 uniform sectors of 128 KB each, a secured silicon sector for permanent device ID, and lock register-based enhanced sector protection.
It executes embedded algorithms-including automatic sector/chip erase, buffered programming, and erase/program suspend/resume-using status polling (DQ5 toggling bit, DQ7 data# polling) and supports Common Flash Interface (CFI) query mode for host software compatibility. EVIO pin enables dynamic I/O voltage tracking between 1.65 V and VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 Mbit (16 MB), organized as 2,097,152 × 8 or 1,048,576 × 16 |
| Access Time | 90 ns max random access; enables fast boot code fetch in real-time systems |
| Page Access Time | 25 ns max; accelerates sequential instruction fetch during burst reads |
| Write Buffer Size | 32 words (64 bytes); reduces total programming time for multi-word updates |
| 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 supply; compatible with 3.3 V system rails without level shifters |
| Operating Temp | –40°C to +85°C; qualified for extended industrial applications |
Pinout & Package
W29GL128CL9B is packaged in a 56-pin TSOP (14 × 20 mm), per Figure 3-3 and Table 5-1. Pin functions are validated per official Winbond datasheet Revision H.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A22 | Address Inputs | 23-bit address bus supporting full 16 MB addressing in word mode; A-1 reused as DQ15 in byte mode |
| DQ0–DQ14 | Data I/O (bidirectional) | Primary data path; DQ15/A-1 serves dual role: data bit 15 (word) or address bit -1 (byte) |
| #CE | Chip Enable | Active-low chip select; controls device activation and power state transitions |
| #OE | Output Enable | Active-low output gate; enables tri-state control of DQ pins independent of #CE |
| #WE | Write Enable | Active-low write strobe; latches address/data on rising edge for command execution |
| #WP/ACC | Hardware Write Protect / Acceleration | Low = protects first/last sector; high + VHH = accelerates programming during production |
| #BYTE | Byte/Word Mode Select | Low = 8-bit data bus (DQ[7:0]); high = 16-bit data bus (DQ[15:0]) |
| RY/#BY | Ready/Busy Status | Open-drain output; low = operation in progress; high = ready for next command |
| #RESET | Hardware Reset | Active-low synchronous reset; forces return to Read mode after power-up or error recovery |
| EVIO | Enhanced Variable I/O Supply | Reference voltage for all input thresholds and output drive levels; tracks 1.65–VCC |
Key Features
| Feature | Design Value |
|---|---|
| Uniform Sector Architecture | 128 × 128 KB sectors enable predictable erase granularity and simplified BOM management |
| Erase Suspend/Resume | Allows temporary interruption of sector erase to service high-priority read/write requests |
| Secured Silicon Sector | 256-byte factory-programmable area with 16-byte electronic serial number for device authentication |
| CFI Support | Enables OS/driver auto-detection of geometry, timing, and command set without hardcoded parameters |
| Deep Power-Down Mode | Reduces standby current to ≤1 µA; extends battery life in always-on embedded systems |
| Enhanced Sector Protection | Combines volatile (DPB) and non-volatile (IPB/Lock Register) mechanisms for flexible firmware security |
Applications
| Industrial PLC Boot Storage | Network Router Firmware |
|---|---|
|
Use Scenario: Stores boot loader and FPGA configuration bitstream in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Primary non-volatile code storage with deterministic 90 ns access for cold-start execution. Use Value: Uniform sector layout simplifies field firmware patching; 20-year data retention ensures unattended operation over equipment lifecycle. |
Use Scenario: Holds Linux kernel image and routing table metadata in carrier-grade Ethernet routers requiring rapid failover. IC Role / Device Role / Timing Role: Parallel NOR Flash providing direct XIP (eXecute-In-Place) capability for boot-time instruction fetch. Use Value: Page mode (25 ns) accelerates kernel decompression; CFI support enables generic flash driver reuse across router SKUs. |
| Medical Imaging System BIOS | Automotive ADAS Camera Module |
|
Use Scenario: Stores diagnostic firmware and calibration data in FDA-cleared ultrasound machines with strict revision traceability requirements. IC Role / Device Role / Timing Role: Secure boot storage with Secured Silicon Sector holding cryptographic keys and device-specific identifiers. Use Value: Hardware write protection (#WP/ACC) prevents accidental overwrite during service; lock register ensures immutable boot integrity. |
Use Scenario: Hosts camera sensor initialization firmware and lens calibration profiles in automotive surround-view modules. IC Role / Device Role / Timing Role: High-reliability code storage meeting AEC-Q100 Grade 2 (–40°C to +105°C) thermal profile via derating. Use Value: 100,000 erase cycles support OTA updates across vehicle lifetime; deep power-down mode minimizes quiescent current in sleep states. |
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 |
|---|---|---|---|
| S29GL128S11TFI010 | 128 Mbit, 110 ns access, 3.0 V, 64-ball LFBGA only; no EVIO or #BYTE pin; CFI v1.3 | Lacks byte/word mode flexibility and dynamic I/O voltage scaling; requires PCB redesign for TSOP replacement | Choose when board space constraints favor BGA and system uses fixed 16-bit bus width |
| MX29GL128FTEI-90G | 128 Mbit, 90 ns access, 3.0 V, 56-pin TSOP; supports #BYTE but no EVIO; CFI v1.2 | Missing EVIO voltage tracking and deep power-down mode; identical pinout and timing to W29GL128CL9B | Drop-in alternative where I/O voltage margin is fixed and ultra-low standby current is not required |
Compared with S29GL128S11TFI010 and MX29GL128FTEI-90G, the W29GL128CL9B uniquely combines TSOP package compatibility, EVIO-driven I/O adaptability, and deep power-down-making it optimal for cost-sensitive industrial designs needing flexible voltage interfaces and extended battery life.
Availability
W29GL128CL9B is available at Aetrix Electronics and suitable for industrial PLC boot storage, network router firmware, medical imaging BIOS, and automotive ADAS camera modules requiring stable component supply across multi-year production cycles.
Supply support for W29GL128CL9B 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 W29GL128CL9B belongs to Winbond's W29GL family of high-performance parallel NOR Flash devices, designed specifically for embedded boot code storage where fast random access, robust data retention, and hardware-level security features are critical.
FAQ
What is the pin compatibility status of W29GL128CL9B with other Winbond GL-series Flash devices?
The W29GL128CL9B shares identical 56-pin TSOP pinout and signal definitions with W29GL064C and W29GL256C within the same family, enabling footprint reuse across density variants. However, it is not pin-compatible with earlier W29EE or W29C series due to differences in #BYTE functionality, EVIO pin assignment, and RY/#BY behavior. Always verify sector map alignment and CFI descriptor tables before substitution.
Does W29GL128CL9B support true XIP (eXecute-In-Place) operation?
Yes, W29GL128CL9B supports XIP directly from its parallel interface: the 90 ns random access time and deterministic read latency allow microcontrollers to fetch instructions without copying to RAM. This is confirmed by its use in ARM9 and MIPS-based boot loaders where address lines are driven continuously and #OE remains asserted during instruction fetch sequences.
How does the #WP/ACC pin function in hardware write protection mode for W29GL128CL9B?
When #WP/ACC is driven low, W29GL128CL9B hardware-protects either the top or bottom 128 KB sector regardless of software protection settings-preventing accidental erase or program. This physical lock persists through power cycles and overrides volatile protection bits, making it ideal for safeguarding boot code or security keys stored in boundary sectors.
What is the purpose of the EVIO pin on W29GL128CL9B, and how must it be biased?
The EVIO pin on W29GL128CL9B sets the reference voltage for all input thresholds and output drive levels. It must be connected to a stable voltage between 1.65 V and VCC (3.6 V). When EVIO = VCC, inputs recognize VIH ≥ 0.7×VCC; when EVIO = 1.8 V, VIH threshold lowers to ~1.26 V-enabling interoperability with mixed-voltage SoCs without external level shifters.
Can W29GL128CL9B enter deep power-down mode while retaining sector protection settings?
Yes, W29GL128CL9B retains all non-volatile sector protection states-including lock register and individual sector protect bits-during deep power-down mode. The device consumes ≤1 µA in this state and resumes normal operation within 100 µs of exit command, with protection settings fully intact and no reinitialization required.
W29GL128CL9B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- -
- Package/Case:
- 64-LBGA
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 128Mbit
- Memory Organization:
- 16M x 8, 8M 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:
- 64-LFBGA (11x13)
W29GL128CL9B FAQ
1.How can I place an order for W29GL128CL9B through Aetrix?
Please submit a Request for Quotation (RFQ) for W29GL128CL9B 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 W29GL128CL9B reliable?
The price and inventory of W29GL128CL9B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W29GL128CL9B is usually 5 days.
3.What payment methods are accepted for W29GL128CL9B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W29GL128CL9B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W29GL128CL9B?
W29GL128CL9B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W29GL128CL9B 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 W29GL128CL9B?
For technical support, including W29GL128CL9B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W29GL128CL9B requirements.
6.How does Aetrix verify that W29GL128CL9B is sourced from the original manufacturer or authorized distributors?
All W29GL128CL9B 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 W29GL128CL9B meets industry standards.
7.What is the process for return or replacement of W29GL128CL9B?
All W29GL128CL9B units undergo pre-shipment inspection (PSI). If there is an issue with W29GL128CL9B, 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 W29GL128CL9B part is unused and in its original packaging.
Return procedure for W29GL128CL9B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W29GL128CL9B 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
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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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