My Inquiry
My Account
Winbond Electronics Corporation W29GL128CH9T
- Part No.:
- W29GL128CH9T
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 56-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
W29GL128CH9T.pdf
- Description:
- IC FLASH 128MBIT PARALLEL 56TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,013
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
W29GL128CH9T 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 read access, and single 3.0 V supply (2.7–3.6 V). It supports byte/word mode via #BYTE pin, features hardware write protection (#WP/ACC), and delivers >100,000 program/erase cycles with >20-year data retention - deployed in industrial control firmware storage and boot code execution.
For engineers reviewing the W29GL128CH9T datasheet, W29GL128CH9T pinout, W29GL128CH9T application, or W29GL128CH9T equivalent, key selection considerations include TSOP-56 package compatibility, CFI interface support for firmware abstraction, EVIO voltage scaling (1.65–VCC), and deep power-down mode (≤1 µA standby current) for low-power embedded systems.
Technical Context
This device implements a parallel asynchronous interface with dedicated #CE, #OE, and #WE controls, enabling direct microprocessor bus connection without glue logic. Its architecture includes a 32-word write buffer to accelerate multi-word programming and an 8-word page read buffer to reduce sequential access latency.
It supports CFI (Common Flash Interface) mode for standardized identification and geometry reporting, along with enhanced sector protection using both volatile (DPB) and non-volatile (IPB) lock registers. Erase suspend/resume and program suspend/resume allow real-time background operation interruption and recovery without data corruption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 Mbit (16 MB) - supports full boot image storage for mid-complexity microcontrollers. |
| Access Time | 90 ns random read - enables direct execution (XIP) from flash in timing-critical applications. |
| Page Read Time | 25 ns - reduces latency for burst instruction fetch or configuration table reads. |
| Write Buffer Size | 32 words (64 bytes) - cuts total programming time by up to 4× vs. single-word writes. |
| Erase Endurance | >100,000 cycles - suitable for field-updatable firmware with frequent revision cycles. |
| Data Retention | >20 years at 85°C - ensures long-term reliability in unattended industrial deployments. |
| Supply Voltage | 2.7–3.6 V - compatible with modern 3.3 V logic rails and tolerant of brown-out conditions. |
| Deep Power-Down Current | ≤1 µA - extends battery life in always-on edge nodes and portable diagnostics tools. |
Pinout & Package
W29GL128CH9T is packaged in a 56-pin TSOP-I (14 × 20 mm) with standard parallel address/data bus layout. Pin functions are validated per Winbond datasheet Rev. H, Figure 3-3 and Table 5-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A22 | Address Inputs | 23-bit address bus supporting full 16 MB addressing in word mode; A-1 multiplexed on DQ15 in byte mode. |
| DQ0–DQ15 | Data I/O (16-bit) | Bidirectional data bus; DQ15 serves as A-1 address input when #BYTE = low (byte mode). |
| #CE | Chip Enable | Active-low chip select - enables device for read/write; critical for multi-device bus arbitration. |
| #OE | Output Enable | Active-low output gate - controls tri-state of DQ pins independent of #CE, enabling shared-bus read sharing. |
| #WE | Write Enable | Active-low write strobe - latches data on rising edge; used with #CE for precise write timing control. |
| #WP/ACC | Write Protect / Acceleration | Hardware lock for top/bottom sector; applies VHH during production to cut programming time by ~2×. |
| #RESET | Hardware Reset | Forces return to read mode after timeout or suspend - essential for robust error recovery in safety-critical firmware. |
| RY/#BY | Ready/Busy Status | Open-drain status flag - signals completion of erase/program; eliminates need for polling DQ5 toggling. |
| #BYTE | Byte/Word Mode Select | Configures bus width: VIH = 16-bit word mode (A22–A0); VIL = 8-bit byte mode (A22–A-1, DQ15 = A-1). |
| EVIO | Enhanced Variable I/O Supply | Sets input threshold and output drive strength; accepts 1.65–VCC - enables mixed-voltage system interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| CFI (Common Flash Interface) | Standardized JEDEC-compliant ID and geometry reporting - enables OS/driver auto-detection without vendor-specific code. |
| Secured Silicon Sector | 256-byte factory-programmable area with electronic serial number - provides immutable device identity for secure boot and licensing. |
| Enhanced Sector Protection | Dynamic (DPB) and individual (IPB) lock registers - allows runtime reconfiguration of protected regions without full chip erase. |
| Erase/Program Suspend & Resume | Interrupts active erase/program to service high-priority reads/writes - maintains deterministic response in real-time systems. |
| Deep Power-Down Mode | Enters sub-µA state with register retention - ideal for battery-backed firmware storage in energy-harvesting sensors. |
| Accelerated Programming | VHH applied to #WP/ACC cuts program time by ~2× - accelerates manufacturing test and field firmware updates. |
Applications
| Industrial PLC Firmware Storage | Automotive ECU Boot Code |
|---|---|
|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers operating continuously in factory environments. IC Role / Device Role / Timing Role: Non-volatile boot memory mapped directly to MCU address space; executes XIP during cold start and supports over-the-air updates. Use Value: 90 ns access time enables deterministic boot within 100 ms; >100K endurance tolerates daily firmware validation cycles. |
Use Scenario: Holding certified boot loader and safety-critical calibration data in engine control units subject to AEC-Q100 Grade 2 requirements. IC Role / Device Role / Timing Role: Primary boot ROM with hardware write protection (#WP/ACC) and secured silicon sector for cryptographic key binding. Use Value: Secured Silicon Sector stores immutable serial number for UDS security access; CFI interface simplifies diagnostic tool integration. |
| Medical Diagnostic Instrument BIOS | Telecom Base Station Configuration |
|
Use Scenario: Hosting BIOS and self-test routines in portable ultrasound and patient monitor devices requiring regulatory traceability. IC Role / Device Role / Timing Role: Firmware storage with >20-year data retention and deep power-down mode for battery backup during transport. Use Value: Deep power-down current ≤1 µA preserves backup battery for ≥5 years; EVIO support ensures compatibility with mixed-voltage FPGA interfaces. |
Use Scenario: Storing FPGA bitstreams and radio parameter tables in 5G remote radio units exposed to wide temperature swings. IC Role / Device Role / Timing Role: High-reliability configuration memory with sector erase suspend/resume to avoid interrupting live RF calibration sequences. Use Value: Erase suspend allows <5 µs latency interruption of 100-ms sector erase - maintains real-time RF performance during field updates. |
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, PLCC-56 package; no EVIO or deep power-down mode. | Lacks hardware-accelerated programming and sub-µA standby - less suitable for battery-constrained or high-throughput production. | Choose if legacy PLCC socket compatibility is required and EVIO/deep power-down are not needed. |
| MX29GL128ELXGI-90G | 128 Mbit, 90 ns access, 3.0 V, TSOP-56; supports CFI and sector protection but no write buffer or erase suspend. | No write buffer reduces programming efficiency; absence of suspend/resume limits real-time system responsiveness. | Choose for cost-sensitive designs where firmware update frequency and real-time interrupt latency are low priority. |
Compared with S29GL128S11TFI010 and MX29GL128ELXGI-90G, W29GL128CH9T uniquely combines 90 ns speed, 32-word write buffer, erase/program suspend/resume, and deep power-down - making it optimal for field-updatable, low-power, real-time embedded systems requiring deterministic latency and long-term data integrity.
Availability
W29GL128CH9T is available at Aetrix Electronics and suitable for industrial control firmware storage, automotive ECU boot code, and medical device BIOS requiring stable component supply across extended product lifecycles.
Supply support for W29GL128CH9T 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, serving industrial, automotive, and communications markets since 1987.
The W29GL128CH9T belongs to Winbond's GL series of high-performance parallel NOR Flash memories, designed specifically for embedded systems demanding fast XIP execution, robust firmware update capability, and long-term data retention under harsh environmental conditions.
FAQ
What is the package type and pin count of the W29GL128CH9T?
The W29GL128CH9T uses a 56-pin TSOP-I (Thin Small Outline Package) with 14 mm × 20 mm body dimensions. This package is verified in Winbond's datasheet Revision H, Figure 3-3 and Section 9.1. The pinout supports full 16-bit parallel bus operation with dedicated #CE, #OE, #WE, and hardware reset functionality - ensuring drop-in compatibility with existing 56-pin NOR Flash footprints.
Does the W29GL128CH9T support both byte and word data access modes?
Yes, the W29GL128CH9T supports configurable 8-bit and 16-bit operation via the #BYTE pin. When #BYTE = VIH, the device operates in 16-bit word mode with address lines A22–A0; when #BYTE = VIL, it switches to 8-bit byte mode where DQ15 functions as address bit A-1. This dual-mode flexibility is documented in Section 5 (Pin Description) and Section 7.1 (Device Bus Operation) of the official datasheet.
How does the write buffer function improve programming performance in the W29GL128CH9T?
The W29GL128CH9T integrates a 32-word (64-byte) write buffer that allows loading multiple words before initiating a single embedded program operation. This reduces total programming time by up to 4× compared to single-word writes - especially beneficial for firmware patching and configuration updates. The buffer operation and timing are fully specified in Section 7.2.14 and Table 8-5 of the datasheet.
What hardware features protect against unintended writes in the W29GL128CH9T?
The W29GL128CH9T implements three-tiered write protection: (1) software-controlled sector locks via CFI commands, (2) hardware #WP/ACC pin that locks top/bottom sectors when pulled low, and (3) enhanced individual protection bits (IPB) stored non-volatilely. These mechanisms are detailed in Sections 7.3 and 7.21, and prevent accidental erasure or corruption during power transitions or firmware faults.
Is the W29GL128CH9T compatible with Common Flash Interface (CFI) hosts?
Yes, the W29GL128CH9T fully supports CFI mode per JEDEC JESD68-A. Entering CFI mode via the Auto Select command sequence (Table 7-9) enables host systems to automatically read manufacturer ID, device ID, sector map, and interface geometry - eliminating hardcoded memory drivers. CFI implementation is verified in Section 7.6 and Tables 7-19 through 7-22 of the datasheet.
W29GL128CH9T 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:
- 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-TSOP
W29GL128CH9T FAQ
1.How can I place an order for W29GL128CH9T through Aetrix?
Please submit a Request for Quotation (RFQ) for W29GL128CH9T 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 W29GL128CH9T reliable?
The price and inventory of W29GL128CH9T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W29GL128CH9T is usually 5 days.
3.What payment methods are accepted for W29GL128CH9T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W29GL128CH9T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W29GL128CH9T?
W29GL128CH9T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W29GL128CH9T 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 W29GL128CH9T?
For technical support, including W29GL128CH9T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W29GL128CH9T requirements.
6.How does Aetrix verify that W29GL128CH9T is sourced from the original manufacturer or authorized distributors?
All W29GL128CH9T 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 W29GL128CH9T meets industry standards.
7.What is the process for return or replacement of W29GL128CH9T?
All W29GL128CH9T units undergo pre-shipment inspection (PSI). If there is an issue with W29GL128CH9T, 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 W29GL128CH9T part is unused and in its original packaging.
Return procedure for W29GL128CH9T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W29GL128CH9T 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…
