Winbond Electronics Corporation W29N02GZBIBA

Overview

W29N02GZBIBA from Winbond is a 2G-bit (256MB) Single-Level Cell (SLC) NAND Flash memory operating at 1.7–1.95V, organized into 2,048 erasable blocks of 135,168 bytes each (64 pages × 2,112 bytes), with x8/x16 bus interface, 25μs random read access, and 100,000 program/erase cycles. It serves as nonvolatile storage for boot code, firmware, and media in space-constrained embedded systems.

For engineers reviewing the W29N02GZBIBA datasheet, W29N02GZBIBA pinout, W29N02GZBIBA application, or W29N02GZBIBA equivalent, key selection considerations include its 1.8V operation, TSOP1/VFBGA packaging options, ONFI-compatible command set (including Copy Back and Two-Plane operations), and industrial temperature range (−40°C to +85°C).

Technical Context

The W29N02GZBIBA implements a standard NAND architecture with multiplexed I/O bus, five dedicated control signals (CLE, ALE, #CE, #RE, #WE), and status monitoring via open-drain RY/#BY. Its internal block diagram includes separate cache and data registers, high-voltage generator, and dual-plane memory array enabling concurrent operations.

It supports two distinct bus widths (x8 and x16), with separate pin assignments and addressing schemes per mode - column address latching on first two cycles, row address on subsequent cycles, and plane selection via A18. Command execution follows strict NAND protocol: CLE-high for command input, ALE-high for address input, all latched on #WE rising edge.

Key Specifications

Pinout & Package

W29N02GZBIBA is packaged in 63-ball Very Fine Pitch Ball Grid Array (VFBGA), package code "B", footprint 9 mm × 11 mm × 1.0 mm (max). 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, W29N02GZBIBA uniquely delivers 1.8V operation with Two-Plane and Copy Back functionality in VFBGA packaging - optimizing board space, power, and throughput for next-generation embedded controllers.

Availability

W29N02GZBIBA is available at Aetrix Electronics and suitable for boot code storage, firmware update storage, and media buffering requiring stable component supply, long-term lifecycle support, and industrial-grade reliability.

Supply support for W29N02GZBIBA 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.

The W29N series targets embedded systems needing high-reliability, low-voltage NAND Flash with advanced features like Two-Plane operation and Copy Back - designed specifically for code storage, firmware updates, and buffered media in space- and power-constrained devices.

FAQ

What is the operating voltage range for W29N02GZBIBA?

W29N02GZBIBA operates from 1.7 V to 1.95 V, with nominal 1.8 V supply. This narrow range simplifies power design in battery-powered or low-power embedded systems and eliminates need for voltage translators when interfacing with 1.8 V logic. The device's DC electrical characteristics, including input thresholds and output drive strength, are fully specified across this range per datasheet Table 10-2.

Does W29N02GZBIBA support both x8 and x16 bus configurations?

Yes, W29N02GZBIBA supports both x8 and x16 data bus widths, with distinct pinouts and addressing schemes for each mode. In x8 mode, I/O[0–7] are used; in x16 mode, I/O[0–15] are active. The bus width is determined by hardware configuration (package-specific ball assignment) and must match the host controller's NAND interface setting - no software register selects width.

What NAND command features does W29N02GZBIBA support beyond the standard set?

W29N02GZBIBA supports enhanced NAND commands including Two-Plane Read/Program/Erase and Copy Back. These features enable concurrent operations across memory planes and internal page relocation without host data movement. They are implemented per ONFI specification and require explicit host controller support - W29N02GZBIBA does not auto-enable them based on configuration.

How is endurance rated for W29N02GZBIBA, and what ECC is assumed?

W29N02GZBIBA is rated for 100,000 program/erase cycles, specified with 1-bit-per-528-byte ECC correction capability. This ECC requirement is mandatory to achieve the rated endurance - using weaker ECC (e.g., 1-bit/1056-byte) or no ECC will result in premature failure. The datasheet defines this in Feature Table 9-5 and Electrical Characteristics Table 10-7.

What package type is used for W29N02GZBIBA, and are there thermal or layout constraints?

W29N02GZBIBA uses a 63-ball VFBGA package (code "B"), 9 mm × 11 mm × 1.0 mm max height. Thermal design requires soldering all Vcc and Vss balls per datasheet Note 1 in Section 3.4; floating any power/ground ball risks instability. PCB layout must follow Winbond's recommended pad stack and stencil design in Package Dimensions Section 13.2 to ensure reliable reflow and mechanical integrity.