Winbond Electronics Corporation W29N04GVBIAF TR

Overview

W29N04GVBIAF from Winbond is a 4G-bit (512MB) SLC NAND Flash memory IC operating at 2.7–3.6V, organized into 4,096 blocks of 135,168 bytes each (64 pages × 2,112 bytes/page), with x8 multiplexed I/O interface and standard NAND command set including Cache Read, Copy Back, and Two-Plane operations. It targets embedded storage in space-constrained industrial systems requiring reliable code shadowing and media data retention.

For engineers reviewing the W29N04GVBIAF datasheet, W29N04GVBIAF pinout, W29N04GVBIAF application, or W29N04GVBIAF equivalent, key selection criteria include its 25μs random read latency, 250μs typical page program time, 2ms block erase time, 100,000 P/E cycle endurance with 4-bit/528-byte ECC, and support for both 48-pin TSOP1 and 63-ball VFBGA packages.

Technical Context

This device implements a standard NAND architecture with dedicated Command Latch Enable (CLE) and Address Latch Enable (ALE) signals for multiplexed command/address/data transfer over an 8-bit I/O bus. Its internal logic includes a cache register for accelerated sequential access and supports two-plane concurrent operations to improve throughput.

It features open-drain RY/#BY status signaling, active-low write protection (#WP), and CMOS-compatible control inputs (#CE, #RE, #WE) enabling integration with legacy NAND controllers. The memory array uses Single-Level Cell (SLC) technology, delivering deterministic timing and high reliability versus MLC/TLC alternatives.

Key Specifications

Pinout & Package

W29N04GVBIAF is packaged in a 63-ball Very Fine-Pitch Ball Grid Array (VFBGA) with 0.5 mm pitch, footprint 9 mm × 11 mm, suitable for high-density PCB layouts. Pin assignments follow ONFI-compliant x8 NAND interface conventions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with W29N04GVBIAF, MT29F4G08ABAEAH4-IT:E offers identical density and voltage range but omits Two-Plane and Cache Read-reducing peak throughput by ~40% in streaming workloads-while TC58NVG2S3ETA00 shifts ECC burden to silicon at the cost of longer reset and parameter-read times.

Availability

W29N04GVBIAF is available at Aetrix Electronics and suitable for industrial HMI storage, medical device firmware, smart meter boot memory, and automotive telematics log applications requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.

Supply support for W29N04GVBIAF 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 embedded systems needing high-reliability, low-power NAND storage with standardized ONFI compatibility and SLC-grade endurance-designed specifically for code execution, firmware updates, and mission-critical data logging.

FAQ

What is the operating voltage range for W29N04GVBIAF?

W29N04GVBIAF operates across a single 2.7V to 3.6V supply rail, with full functionality-including read, program, and erase-guaranteed across this range. Its DC electrical characteristics are specified at 3.3V nominal, and it maintains 100,000 P/E cycles and 10-year data retention even at the extremes of this voltage window, making W29N04GVBIAF suitable for battery-backed or wide-input industrial power supplies.

Does W29N04GVBIAF support hardware write protection?

Yes, W29N04GVBIAF includes a dedicated #WP (Write Protect) pin that, when driven low, disables all program and erase operations regardless of command sequence. This hardware lock prevents accidental firmware corruption during power transitions or software faults, and remains active even if the device is powered-ensuring W29N04GVBIAF meets functional safety requirements for critical storage in medical and industrial systems.

What package type does W29N04GVBIAF use?

W29N04GVBIAF uses a 63-ball Very Fine-Pitch Ball Grid Array (VFBGA) package with 0.5 mm pitch and 9 mm × 11 mm body size. This compact, thermally efficient package supports high-density routing and is compatible with standard reflow profiles. Unlike the TSOP1 variant (W29N04GVBITAF), W29N04GVBIAF's VFBGA enables superior signal integrity for high-speed NAND interfaces in space-constrained designs.

How many program/erase cycles does W29N04GVBIAF guarantee?

W29N04GVBIAF guarantees 100,000 program/erase cycles per block when used with 4-bit-per-528-byte ECC correction, as verified in Winbond's qualification testing. This endurance rating applies across the full industrial temperature range (-40°C to +85°C) and is enabled by its Single-Level Cell (SLC) architecture-making W29N04GVBIAF significantly more durable than MLC NAND alternatives for applications requiring frequent firmware updates or cyclic logging.

What NAND command set extensions does W29N04GVBIAF support beyond standard ONFI?

W29N04GVBIAF supports several advanced ONFI-compliant extensions: Cache Read (to reduce sequential read latency), Copy Back (for internal page relocation without host data movement), and Two-Plane operations (enabling concurrent access to independent memory planes). These features are implemented in hardware and require no additional host-side IP-directly improving throughput and efficiency in W29N04GVBIAF-based storage subsystems without increasing controller complexity.