Winbond Electronics Corporation W29N08GWBIBF

Overview

W29N08GWBIBF from Winbond is an 8G-bit (1G-byte) single-level cell (SLC) NAND Flash memory operating at 1.7–1.95V, organized into 8,192 erasable blocks of 135,168 bytes each, with 64 pages per block and 2,112-byte pages (2,048B main + 64B spare). It supports x8/x16 bus width, two-plane operations, Copy Back, and ONFI-compatible command set for embedded storage in space-constrained systems.

For engineers reviewing the W29N08GWBIBF datasheet, W29N08GWBIBF pinout, W29N08GWBIBF application, or W29N08GWBIBF equivalent, key selection criteria include its 100,000 program/erase cycles, 10-year data retention with 4-bit/528-byte ECC, 25 µs random read latency, and dual-package availability (48-pin TSOP1 and 63-ball VFBGA) for industrial (-40°C to +85°C) use cases.

Technical Context

The W29N08GWBIBF implements a standard NAND interface with multiplexed I/O bus and five dedicated control signals (CLE, ALE, #CE, #RE, #WE), enabling command, address, and data transfer over shared pins. Its internal architecture includes separate Command and Address registers, a high-voltage generator, and dual-plane NAND array supporting concurrent operations across even- and odd-numbered block planes.

It executes ONFI-standard commands including PAGE READ (00h–30h), TWO PLANE READ (00h–00h–30h), READ PARAMETER PAGE (ECh), SET/GET FEATURES (EFh/EEh), and COPY BACK (35h/85h–10h), with status reporting via RY/#BY open-drain output and 8-bit status register accessible through READ STATUS (70h) and READ STATUS ENHANCED (78h).

Key Specifications

Pinout & Package

W29N08GWBIBF is available in two industrial-grade packages: 48-pin TSOP1 (12×20 mm) and 63-ball VFBGA (package code B), both rated for -40°C to +85°C operation. Pin functions are identical across packages; ball/pin numbering differs per mechanical layout but electrical roles remain consistent.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NAND Flash memory applications.

Compared with MT29F8G08ABAEAH4 and TC58NVG2S3ETA00, W29N08GWBIBF delivers superior 1.8V efficiency, integrated hardware write protection, and unique Copy Back capability-enabling zero-RAM firmware patching and faster field updates in resource-constrained designs.

Availability

W29N08GWBIBF is available at Aetrix Electronics and suitable for industrial HMI storage, medical device firmware, automotive telematics logging, and smart meter firmware requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for W29N08GWBIBF 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, automotive, and consumer markets since 1987.

The W29N series targets high-reliability embedded NAND applications demanding SLC endurance, industrial temperature operation, and ONFI-standard interoperability-designed specifically for code shadowing, firmware storage, and mission-critical data logging.

FAQ

What is the operating voltage range for W29N08GWBIBF?

W29N08GWBIBF operates from 1.7 V to 1.95 V, optimized for 1.8 V system rails. This narrow range ensures stable performance with minimal power-supply filtering and reduces dynamic power consumption versus wider-range alternatives. The specification is validated across the full industrial temperature range (-40°C to +85°C), and operation outside this window may cause data corruption or premature wear. W29N08GWBIBF does not support 3.3 V or dual-voltage operation.

Does W29N08GWBIBF support hardware write protection?

Yes, W29N08GWBIBF includes a dedicated #WP (Write Protect) pin that, when driven low, disables all program and erase operations-including page program, block erase, and Copy Back-regardless of command sequence. This hardware lock is active immediately and persists across power cycles, providing fail-safe protection against firmware corruption during field updates or brown-out conditions. The #WP function is documented in Section 4.6 of the W29N08GWBIBF datasheet and requires no internal register configuration.

What package options are available for W29N08GWBIBF?

W29N08GWBIBF is offered in two industrial-grade packages: 48-pin TSOP1 (12×20 mm, package code S) and 63-ball VFBGA (package code B). Both support x8 and x16 bus configurations and are rated for -40°C to +85°C operation. Pin functions are electrically identical; mechanical layout differs per package, with TSOP1 suited for wave-soldered boards and VFBGA for high-density layouts. The "B" suffix in W29N08GWBIBF explicitly denotes the VFBGA variant.

How many program/erase cycles does W29N08GWBIBF guarantee?

W29N08GWBIBF guarantees 100,000 program/erase cycles per block when used with 4-bit-per-528-byte ECC correction, as specified in the datasheet's Features section. This endurance rating is measured under worst-case conditions (85°C, full block cycling) and assumes proper wear-leveling by the host controller. Without ECC, endurance drops significantly; Winbond validates the 100K-cycle spec only with compliant error correction, making ECC implementation mandatory for long-term reliability.

Does W29N08GWBIBF support two-plane operations?

Yes, W29N08GWBIBF fully supports two-plane operations, allowing simultaneous read, program, or erase across even- and odd-numbered block planes. Commands such as TWO PLANE READ (00h–00h–30h), TWO PLANE PAGE PROGRAM, and TWO PLANE BLOCK ERASE are defined in the command table and enable true concurrency-e.g., reading from one plane while programming to another. This capability is intrinsic to the die architecture and requires no external logic; the plane address is encoded in A18 per the addressing scheme in Table 6-1.