Winbond Electronics Corporation W29N02GVBIAF

Overview

W29N02GVBIAF from Winbond is a 2G-bit (256MB) SLC NAND Flash memory operating at 2.7V–3.6V, organized into 2,048 blocks of 135,168 bytes each (64 pages × 2,112 bytes/page), with 2,048-byte main data + 64-byte spare area per page. It supports standard NAND command set including Two-Plane Read/Program, Cache Read/Program, Copy Back, and ONFI-compatible interface for embedded storage in space-constrained industrial systems.

For engineers reviewing the W29N02GVBIAF datasheet, W29N02GVBIAF pinout, W29N02GVBIAF application, or W29N02GVBIAF equivalent, key selection factors include its 25μs random read latency, 250μs typical page program time, 100,000 P/E cycle endurance with 4-bit/528-byte ECC, industrial-plus temperature rating (–40°C to +105°C), and dual-package availability (63-ball VFBGA and 48-pin TSOP1).

Technical Context

The W29N02GVBIAF implements a multiplexed x8 I/O bus with dedicated CLE/ALE control lines and five core NAND control signals (#CE, #WE, #RE, #WP, RY/#BY), enabling command, address, and data latching via edge-triggered protocols. Its internal architecture includes a 2,112-byte cache register, high-voltage generator, and plane-select logic supporting concurrent operations across even/odd planes.

It complies with ONFI 1.0 timing conventions and supports enhanced status reporting (78h), unique ID read (EDh), parameter page access (ECh), and OTP/Block Lock features (contact Winbond). All operations - including Two-Plane Block Erase (60h-D0h) and Cache Program (80h-15h) - are executed under strict AC timing constraints defined for 3.3V operation.

Key Specifications

Pinout & Package

W29N02GVBIAF is supplied in a 63-ball Very Fine-Pitch Ball Grid Array (VFBGA) package (package code B), measuring 9mm × 11mm × 1.0mm, with 0.8mm ball pitch. All Vcc and Vss balls must be connected; DNU and N.C. balls are unconnected and must remain floating.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MT29F2G08ABAEAH4-IT:E and TC58NVG2S3HTAI0, W29N02GVBIAF offers identical VFBGA/TSOP1 dual packaging and industrial-plus temperature range, but delivers balanced performance (25μs/250μs) with lower ECC implementation burden - ideal for cost-sensitive, thermally demanding embedded systems where 4-bit correction suffices.

Availability

W29N02GVBIAF is available at Aetrix Electronics and suitable for industrial HMI storage, automotive telematics logging, medical imaging buffers, and edge AI inference firmware requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for W29N02GVBIAF 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, emphasizing SLC endurance, extended temperature operation, and ONFI-compliant interoperability for firmware and data storage in resource-constrained systems.

FAQ

What is the operating voltage range for W29N02GVBIAF?

W29N02GVBIAF operates over a single 2.7V to 3.6V supply, with all DC and AC specifications guaranteed across this range. This wide Vcc window simplifies power design in systems with variable input rails or aging batteries, and eliminates need for separate 3.3V regulation when other peripherals share the same domain. The W29N02GVBIAF maintains full functionality - including 100,000 P/E cycles and 10-year retention - across the entire voltage range.

Does W29N02GVBIAF support ONFI compliance?

Yes, W29N02GVBIAF is designed to comply with ONFI 1.0 timing and command definitions, including standard read (00h/30h), program (80h/10h), and erase (60h/D0h) sequences, as well as enhanced status (78h) and parameter page (ECh) access. While not certified under ONFI's formal conformance program, Winbond specifies AC timing parameters aligned with ONFI 1.0 for interoperability with compliant controllers. The W29N02GVBIAF requires no vendor-specific initialization sequences.

What package options are available for W29N02GVBIAF?

W29N02GVBIAF is specifically offered in the 63-ball VFBGA package (package code B), with 0.8mm ball pitch and 9mm × 11mm body size. Unlike the generic W29N02GVxxAF family which also includes a 48-pin TSOP1 variant (code S), the 'B' suffix in W29N02GVBIAF denotes exclusive VFBGA packaging - confirmed in Winbond's ordering information table (Section 15) and mechanical drawings (Figure 13-2). No TSOP1 version exists for this exact part number.

How does the Two-Plane operation improve performance in W29N02GVBIAF?

W29N02GVBIAF's Two-Plane architecture allows independent read or program operations on even and odd physical planes within the same die. For example, while Plane 0 executes a page program, Plane 1 can simultaneously perform a read - effectively halving average latency in pipelined FTL operations like garbage collection or wear leveling. This concurrency is enabled by dedicated plane-address bit (A18) and supported by commands such as 00h-00h-30h (Two-Plane Read) and 80h-00h-10h (Two-Plane Program). The W29N02GVBIAF achieves measurable throughput gains without increasing clock frequency or bus width.

What ECC strength is required to achieve the rated 100,000 P/E cycles for W29N02GVBIAF?

The 100,000 erase/program cycle endurance rating for W29N02GVBIAF is explicitly conditioned on use of 4-bit error correction per 528-byte sector, as stated in the Features section footnote. This ECC level is implemented externally by the host controller or integrated into an on-die ECC engine if present. Without meeting this ECC requirement - for example, using only 1-bit Hamming or no ECC - the actual endurance drops significantly and is not guaranteed. The W29N02GVBIAF's spare area (64 bytes/page) is sized to accommodate metadata for exactly this 4-bit/528-byte correction scheme.