My Inquiry
My Account
Winbond Electronics Corporation W29GL128CH9C
- Part No.:
- W29GL128CH9C
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 56-TFBGA
- Datasheet:
-
W29GL128CH9C.pdf
- Description:
- IC FLASH 128MBIT PAR 56TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,571
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
W29GL128CH9C from Winbond is a 128-Mbit (16 MB) parallel NOR Flash memory IC operating at 3.0 V with uniform 128 kB sectors, 90 ns random access time, and 25 ns page read access. It supports byte/word mode via #BYTE pin, features hardware write protection via #WP/ACC, and delivers embedded erase/program operations with suspend/resume capability for real-time firmware updates in industrial controllers.
For engineers reviewing the W29GL128CH9C datasheet, W29GL128CH9C pinout, W29GL128CH9C application, or W29GL128CH9C equivalent, key selection criteria include its 3.0 V single-supply operation, CFI-compliant interface, deep power-down mode (5 µA), 100,000 program/erase cycles, and support for both TSOP-56 and TFBGA-56 packages - critical for legacy board refresh and space-constrained embedded designs.
Technical Context
This parallel Flash uses a uniform sector architecture (128 × 128 kB), enabling deterministic erase timing and predictable wear leveling. Its instruction-set-driven operation relies on address/data latching on #WE/#CE edges and supports Auto Select ID reads, CFI query mode, and EVIO voltage scaling (1.65–VCC) for flexible I/O level compatibility.
The device implements dual protection mechanisms: volatile Dynamic Protection Bits (DPB) and non-volatile Individual Protection Bits (IPB), plus a factory-lockable 256-byte Secured Silicon Sector with electronic serial number. Erase and program operations are monitored via DQ5 polling and RY/#BY status output, with suspend/resume functionality allowing interruption of background erase to service high-priority reads or writes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 Mbit (16 MB), organized as 2,097,152 × 8-bit or 1,048,576 × 16-bit |
| Access Time | 90 ns random access; enables fast boot code execution from linear memory map |
| Page Read Speed | 25 ns page access (16-byte page); reduces latency for burst instruction fetches |
| Write Buffer Size | 32-word (64-byte) buffer; cuts multi-word programming time by up to 70% vs. byte-by-byte |
| Erase/Program Endurance | 100,000 cycles per sector; supports field firmware updates over 10+ years in deployed systems |
| Data Retention | 20 years at 85°C; ensures long-term reliability in industrial temperature environments |
| Deep Power-Down Current | 5 µA typical; extends battery life in always-on edge nodes during idle periods |
Pinout & Package
W29GL128CH9C is available in 56-pin TSOP-I (14 × 20 mm) and 56-ball TFBGA (7 × 9 mm) packages. Pin functions are identical across both packages; ball/pin numbering follows JEDEC-standard top-view layouts.
| 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, DQ15/A-1 | Data I/O / Address LSB | 16-bit bidirectional data bus; DQ15 serves as A-1 in byte mode (#BYTE = L), enabling 8-bit host interface |
| #CE, #OE, #WE | Chip/Output/Write Enable | Standard parallel interface control: #CE selects device, #OE enables output drivers, #WE clocks write data |
| #WP/ACC | Hardware Write Protect / Acceleration | Pull-low to protect top/bottom sector; apply VHH (12 V) to accelerate programming during production |
| RY/#BY | Ready/Busy Status Output | Open-drain active-low signal indicating ongoing erase/program; used for polling or interrupt-driven flow control |
| #RESET | Hardware Reset Input | Asynchronous reset pin; forces return to read mode after tRP ≥ 100 ns low pulse |
| EVIO | Enhanced Variable I/O Supply | Reference voltage (1.65–VCC) setting logic thresholds for all address/control/data pins - eliminates level-shifters |
Key Features
| Feature | Design Value |
|---|---|
| Uniform 128 kB Sectors | Enables precise, deterministic erase granularity - no variable-size blocks to complicate file system design |
| Secured Silicon Sector | 256-byte factory-programmable region with 128-word electronic serial number for secure device identity |
| Erase/Program Suspend | Pause background erase to perform urgent reads/writes in other sectors - essential for real-time OS integration |
| CFI Interface Support | Standardized JEDEC JESD68 query mode allows automatic driver detection and configuration without hard-coded parameters |
| Deep Power-Down Mode | Enters 5 µA standby state via #RESET low + #CE low; exits in < 100 µs - ideal for intermittent sensor logging |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
|
Use Scenario: Storing and executing firmware images for programmable logic controllers in factory automation cabinets. IC Role / Device Role / Timing Role: Primary non-volatile code storage with direct XIP (eXecute-In-Place) capability via 90 ns access time. Use Value: Uniform 128 kB sectors simplify firmware partitioning; hardware write protection prevents corruption during brown-out events. |
Use Scenario: Holding boot loader and OS kernel for head-unit microprocessors requiring fast cold-start performance. IC Role / Device Role / Timing Role: Parallel NOR Flash providing deterministic read latency for ROM-based boot sequences. Use Value: Page mode (25 ns) accelerates sequential instruction fetch; CFI support enables auto-negotiated driver initialization. |
| Medical Diagnostic Equipment BIOS | Network Router Configuration Storage |
|
Use Scenario: Storing safety-critical BIOS and calibration tables in portable ultrasound and MRI subsystems. IC Role / Device Role / Timing Role: Secure, long-retention storage with Secured Silicon Sector for tamper-resistant device identification. Use Value: 20-year data retention at 85°C ensures integrity across product lifecycle; individual sector protection isolates calibration data. |
Use Scenario: Holding router configuration, firmware patches, and certificate stores in carrier-grade edge routers. IC Role / Device Role / Timing Role: Dual-mode (byte/word) interface accommodating legacy 8-bit management MCUs and modern 16-bit processors. Use Value: Write buffer programming reduces OTA update time; suspend/resume avoids packet loss during concurrent config writes. |
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, supports only TSOP-56; lacks EVIO and deep power-down mode | Higher access latency limits XIP performance; no low-power sleep mode for battery-backed systems | Choose when cost sensitivity outweighs speed/power needs and EVIO flexibility is unnecessary |
| MX29GL128FHT2I-90G | 128 Mbit, 90 ns access, 3.0 V, includes CFI but omits Secured Silicon Sector and erase suspend | No hardware-secured identity storage; cannot pause erase for real-time servicing - limits RTOS use | Prefer where basic firmware storage suffices and security/real-time features are not required |
Compared with S29GL128S11TFI010 and MX29GL128FHT2I-90G, W29GL128CH9C uniquely combines 90 ns speed, deep power-down (5 µA), EVIO voltage adaptability, and Secured Silicon - making it optimal for space-constrained, safety-aware, and battery-sensitive embedded systems requiring field-upgradable firmware.
Availability
W29GL128CH9C is available at Aetrix Electronics and suitable for industrial control firmware storage, automotive infotainment boot memory, and medical device BIOS applications requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for W29GL128CH9C 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 and SRAM, with global manufacturing and quality certifications.
The W29GL series targets embedded systems needing high-reliability parallel Flash with advanced protection, suspend/resume, and CFI compatibility - designed specifically for industrial, automotive, and medical applications demanding long-term data integrity.
FAQ
What is the operating voltage range for W29GL128CH9C?
W29GL128CH9C operates from 2.7 V to 3.6 V DC, with guaranteed performance across this full range. Its EVIO pin allows input/output voltage thresholds to scale dynamically with the applied EVIO voltage (1.65 V to VCC), eliminating external level shifters when interfacing with mixed-voltage SoCs or microcontrollers.
Does W29GL128CH9C support both byte and word data interfaces?
Yes, W29GL128CH9C supports both 8-bit and 16-bit data widths via the #BYTE pin. When #BYTE is low, DQ15 functions as address bit A-1 for byte mode; when high, DQ15 becomes the MSB of the 16-bit data bus. This dual-mode capability simplifies migration between legacy 8-bit and modern 16-bit host processors without PCB redesign.
How does hardware write protection work on W29GL128CH9C?
W29GL128CH9C implements hardware write protection using the #WP/ACC pin. Pulling #WP/ACC low protects either the top or bottom 128 kB sector regardless of software protection settings. During production, applying VHH (12 V) to #WP/ACC accelerates programming speed - a feature confirmed in the device's AC characteristics table for accelerated write operations.
What is the purpose of the Secured Silicon Sector in W29GL128CH9C?
The Secured Silicon Sector in W29GL128CH9C 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 lock/unlock commands. This sector is physically isolated and protected against accidental overwrite - critical for anti-counterfeiting and secure boot chain implementation in W29GL128CH9C-based systems.
Can W29GL128CH9C be used in deep power-down mode for ultra-low-power applications?
Yes, W29GL128CH9C supports deep power-down mode with typical current consumption of 5 µA. Entry requires holding #RESET and #CE low simultaneously; exit occurs within 100 µs after releasing #RESET. This mode is explicitly characterized in Table 8-8 of the datasheet and is suitable for battery-powered IoT edge nodes that require extended sleep intervals while retaining firmware integrity.
W29GL128CH9C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- -
- Package/Case:
- 56-TFBGA
- 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:
- 56-TFBGA (7x9)
W29GL128CH9C FAQ
1.How can I place an order for W29GL128CH9C through Aetrix?
Please submit a Request for Quotation (RFQ) for W29GL128CH9C 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 W29GL128CH9C reliable?
The price and inventory of W29GL128CH9C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W29GL128CH9C is usually 5 days.
3.What payment methods are accepted for W29GL128CH9C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W29GL128CH9C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W29GL128CH9C?
W29GL128CH9C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W29GL128CH9C 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 W29GL128CH9C?
For technical support, including W29GL128CH9C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W29GL128CH9C requirements.
6.How does Aetrix verify that W29GL128CH9C is sourced from the original manufacturer or authorized distributors?
All W29GL128CH9C 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 W29GL128CH9C meets industry standards.
7.What is the process for return or replacement of W29GL128CH9C?
All W29GL128CH9C units undergo pre-shipment inspection (PSI). If there is an issue with W29GL128CH9C, 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 W29GL128CH9C part is unused and in its original packaging.
Return procedure for W29GL128CH9C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W29GL128CH9C Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
