Winbond Electronics Corporation W29N04KZSIBF TR

Overview

W29N04KZSIBF from Winbond is a 4G-bit (512MB) single-level cell (SLC) NAND Flash memory operating at 1.7V–1.95V, organized into 4,096 blocks of 139,264 bytes each with 64 pages per block (2,176 bytes/page, including 128-byte spare area). It supports x8/x16 bus widths and delivers 25 µs random read access and 250 µs typical page program time, targeting embedded storage in space-constrained industrial systems requiring reliable code shadowing and media data retention.

For engineers reviewing the W29N04KZSIBF datasheet, W29N04KZSIBF pinout, W29N04KZSIBF application, or W29N04KZSIBF equivalent, key selection criteria include its 1.8V supply compatibility, ONFI-compliant command set (including Copy Back and Two-Plane operations), industrial-plus temperature range (−40°C to +105°C), and support for 60,000 program/erase cycles with 10-year data retention under 4-bit/544-byte ECC.

Technical Context

This SLC NAND device implements a multiplexed 8-/16-bit I/O bus with five dedicated control signals (CLE, ALE, #CE, #RE, #WE) to manage command, address, and data latching via edge-triggered protocols. Its internal architecture includes a high-voltage generator, dual-plane row/column decoders, and a 2,176-byte data register enabling concurrent operations across even/odd block planes.

It executes standard NAND commands (00h/30h read, 80h/10h program, 60h/D0h erase) plus enhanced features: Two-Plane Read/Program/Erase reduces latency by 50% for sequential operations, while Copy Back allows intra-die page relocation without host data buffering - critical for wear leveling and garbage collection in managed NAND firmware.

Key Specifications

Pinout & Package

W29N04KZSIBF is packaged in a 63-ball Very Fine-Pitch Ball Grid Array (VFBGA) with 0.5 mm pitch, measuring 9 mm × 11 mm - optimized for high-density PCB layouts in industrial gateways and edge AI modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MT29F4G08ABAEAH4-IT:E and TC58NVG2S3ETA00, W29N04KZSIBF uniquely balances 1.8V operation, ONFI 2.3 interoperability, Two-Plane efficiency, and industrial-plus temperature resilience - making it optimal for new designs prioritizing firmware update speed, ECC robustness, and thermal margin in embedded control systems.

Availability

W29N04KZSIBF is available at Aetrix Electronics and suitable for industrial HMI boot storage, smart meter firmware archive, and edge AI inference model cache requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for W29N04KZSIBF 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 W29N series targets high-reliability embedded storage, designed specifically for code execution, firmware archiving, and mission-critical data logging in thermally demanding environments where SLC endurance and retention outweigh density-per-dollar trade-offs.

FAQ

What is the operating voltage range for W29N04KZSIBF?

W29N04KZSIBF operates from 1.7 V to 1.95 V, with nominal 1.8 V supply. This narrow range ensures compatibility with modern low-power SoCs and eliminates the need for external voltage regulation or level translation in 1.8V system designs. All DC and AC specifications - including 13 mA typical read current and 10 µA standby - are guaranteed across this full voltage window, as verified in Winbond's official datasheet revision B.

Does W29N04KZSIBF support ONFI standards?

Yes, W29N04KZSIBF is compliant with ONFI 2.3 specifications. It supports ONFI-standard command set extensions, timing modes, and the Read Parameter Page (ECh) command to retrieve device-specific timing and feature parameters dynamically. This enables plug-and-play integration with ONFI-aware controllers and simplifies firmware development across multiple NAND vendors - a capability confirmed in Section 9.1.5 and Table 9-3 of the W29N04KW/ZxxBF datasheet.

What is the significance of the "SIBF" suffix in W29N04KZSIBF?

The "SIBF" suffix in W29N04KZSIBF denotes a specific ordering variant: "S" = 63-ball VFBGA package, "I" = Industrial Plus temperature grade (−40°C to +105°C), "B" = standard reliability screening, and "F" = tape-and-reel packaging. This exact suffix maps to the part number listed in Table 15-2 of the datasheet, confirming its qualification for extended-temperature industrial applications with full traceability and reliability testing.

How does the Two-Plane operation improve performance in W29N04KZSIBF?

Two-Plane operation in W29N04KZSIBF allows concurrent read, program, or erase across even- and odd-numbered block planes - effectively halving latency for sequential operations. For example, a Two-Plane Page Program (85h-10h) writes to two pages simultaneously, doubling throughput versus single-plane mode. This is implemented in hardware with no host-side arbitration, and is documented in Sections 9.1.2, 9.2.4, and 9.4.2 of the datasheet as a key differentiator for high-efficiency firmware updates and streaming data logging.

What ECC strength is required to achieve the rated 60,000 P/E cycles for W29N04KZSIBF?

To achieve the full 60,000 program/erase cycles specification, W29N04KZSIBF requires a minimum 4-bit error correction per 544-byte sector - as explicitly stated in Note 1 of the Features section (page 8) of the datasheet. This ECC strength must be implemented in the host controller or flash translation layer; the device itself does not perform on-die ECC. Using weaker ECC (e.g., 1-bit Hamming) will significantly reduce usable endurance and is not covered by Winbond's reliability warranty.