Winbond Electronics Corporation W29N02KVBIAF TR

Overview

W29N02KVBIAF from Winbond is a 2G-bit (256MB) SLC NAND Flash memory operating on a single 2.7V–3.6V supply, organized into 2,048 blocks of 64 pages each (2,176 bytes/page), with 25μs random read access and 250μs typical page program time. It supports two-plane operations, copy-back, and ONFI-compatible command set for embedded storage in space-constrained systems requiring reliable code shadowing and media data retention.

For engineers reviewing the W29N02KVBIAF datasheet, W29N02KVBIAF pinout, W29N02KVBIAF application, or W29N02KVBIAF equivalent, key selection criteria include its x8 multiplexed I/O interface, industrial temperature range (−40°C to +85°C), 60,000 P/E cycle endurance with 4-bit/544-byte ECC, and support for RY/#BY status monitoring and hardware write protection via #WP.

Technical Context

This device implements a standard NAND architecture with dedicated CLE/ALE control logic for command/address latching, enabling sequential and random access via a shared 8-bit I/O bus. Its two-plane organization allows concurrent operations-e.g., read from one plane while programming the other-improving effective throughput without external buffering.

The internal logic control block manages high-voltage generation for program/erase, interfaces with a 2,176-byte data register per page, and enforces timing compliance per ONFI 2.3–compatible AC specifications-including tREA = 25ns for sequential reads and tPROG = 250μs (typ.) for page programming.

Key Specifications

Pinout & Package

W29N02KVBIAF is packaged in a 48-ball Very Fine-Pitch Ball Grid Array (VFBGA) with package code "D", measuring 8 mm × 10 mm × 0.8 mm (JEDEC MO-276AA). 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 and TC58NVG2S3HTAI0, W29N02KVBIAF delivers higher endurance (60k vs. 30k cycles), native ONFI 2.3 compliance, and guaranteed two-plane concurrency-making it optimal for industrial firmware storage and real-time logging where reliability and deterministic timing outweigh cost sensitivity.

Availability

W29N02KVBIAF is available at Aetrix Electronics and suitable for embedded code storage, industrial data logging, HMI asset caching, and edge AI model persistence requiring stable component supply across extended product lifecycles.

Supply support for W29N02KVBIAF 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 W29N02KV series targets cost-sensitive, space-constrained embedded systems needing robust, long-life NAND storage with industrial-grade reliability and ONFI-standard interoperability-particularly where SLC performance and endurance outweigh TLC density advantages.

FAQ

What is the operating temperature range specified for W29N02KVBIAF?

W29N02KVBIAF is rated for industrial temperature operation from −40°C to +85°C. This specification is validated per JEDEC JESD22-A108 and applies across all guaranteed performance parameters-including read/write timing, endurance, and data retention-ensuring reliable function in harsh thermal environments such as factory automation controllers and outdoor telematics units.

Does W29N02KVBIAF support hardware write protection, and how is it implemented?

Yes, W29N02KVBIAF implements hardware write protection via the #WP (Write Protect) pin. When #WP is driven low, all program and erase operations are disabled regardless of command sequence or timing-preventing accidental corruption during power-up/down or system reset. This feature is independent of internal status registers and requires no firmware configuration to activate.

What NAND interface standard does W29N02KVBIAF comply with?

W29N02KVBIAF complies with ONFI 2.3 (Open NAND Flash Interface) specifications for command set, timing parameters, and electrical interface behavior. This ensures interoperability with ONFI-compliant controllers and simplifies driver porting across platforms-unlike legacy or proprietary NAND implementations that require custom timing tuning.

How many program/erase cycles is W29N02KVBIAF rated for, and what ECC requirement enables this rating?

W29N02KVBIAF is rated for 60,000 program/erase cycles. This endurance figure is specified under conditions requiring 4-bit error correction per 544-byte sector (i.e., BCH 4-bit ECC), as defined in the datasheet's footnote. Using weaker ECC (e.g., 1-bit Hamming) reduces achievable cycle life and voids the 60k guarantee.

What package type is used for W29N02KVBIAF, and what are its mechanical dimensions?

W29N02KVBIAF uses a 48-ball Very Fine-Pitch Ball Grid Array (VFBGA) package with JEDEC MO-276AA footprint, designated package code "D". Its dimensions are 8.0 mm × 10.0 mm × 0.8 mm, with 0.5 mm ball pitch. This compact, surface-mount package supports high-density PCB layouts common in portable and industrial edge devices.