STMicroelectronics NAND512W3A2BN6E

Overview

NAND512W3A2BN6E from STMicroelectronics is a 512 Mbit (64 MB) x8 NAND Flash memory with 1.8V supply, 528-byte page size (512 data + 16 spare), 16 KB block size (16K + 512 spare), and VFBGA63 (8.5 × 15 mm, 0.8 mm pitch) package - used in embedded boot storage, portable media players, and industrial data loggers requiring high-density non-volatile storage with automatic Page 0 read at power-up.

For engineers reviewing the NAND512W3A2BN6E datasheet, NAND512W3A2BN6E pinout, NAND512W3A2BN6E application, or NAND512W3A2BN6E equivalent, key selection criteria include 1.8V operation, x8 bus width, 2ms typical block erase time, hardware write protection via WP pin, and support for Copy Back Program mode to reduce controller overhead in bad-block management.

Technical Context

This device implements a standard NAND interface with multiplexed I/O[7:0] for address/data/command transfer, AL/CL control latching, and open-drain RB output for P/E/R status monitoring. It uses floating-gate NAND cell architecture with on-chip high-voltage generation for program/erase operations.

It supports automatic Page 0 read at power-up for boot code loading and Chip Enable 'Don't Care' mode to simplify microcontroller interfacing without external glue logic. The internal status register (SR0–SR7) provides real-time feedback on error, busy, and protection states during all operations.

Key Specifications

Pinout & Package

VFBGA63 package: 63-ball fine-pitch grid array (8.5 × 15 mm, 0.8 mm pitch), top-side ball layout per Figure 43, JEDEC MO-245 compliant, suitable for high-density PCB designs with thermal and mechanical reliability requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MT29F512G08CFAAAWP-IT:F and TC58NVG2S3ETA00, NAND512W3A2BN6E offers optimal balance of 1.8V ultra-low-power operation, proven TSOP/VFBGA footprint compatibility, and boot-ready features - making it ideal for cost-sensitive, battery-powered embedded systems where power, footprint, and boot simplicity are prioritized over raw bandwidth.

Availability

NAND512W3A2BN6E is available at Aetrix Electronics and suitable for embedded boot storage, portable media players, and industrial data loggers requiring stable component supply throughout product lifecycle.

Supply support for NAND512W3A2BN6E 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, delivering microcontrollers, memories, power ICs, and sensors for industrial, automotive, and consumer markets.

This part belongs to ST's NAND128-A/NAND512-A family - designed specifically for cost-effective, high-reliability mass storage in resource-constrained embedded systems with minimal external logic.

FAQ

Does NAND512W3A2BN6E support x16 bus width?

No. NAND512W3A2BN6E is an x8-only device, as indicated by the 'W' in the part number (per Table 28: W = x8, R = x16). Its I/O[7:0] pins implement an 8-bit multiplexed bus for address, command, and data - requiring no x16 configuration or pin strapping. Attempting x16 operation will result in undefined behavior.

What is the function of the Chip Enable 'Don't Care' option?

The Chip Enable 'Don't Care' option allows the E pin to remain unconnected or tied high during normal operation, eliminating the need for active chip-select control from the host processor. This simplifies interface design in microcontroller-based systems with limited GPIO resources, while maintaining full command functionality via AL/CL timing alone.

How does the Copy Back Program mode improve system reliability?

Copy Back Program enables reading a page and writing it to another location within the same device without transferring data through the host. This avoids data loss during bad-block remapping, reduces host CPU load, and shortens interrupt latency - especially critical in real-time logging or boot scenarios where host intervention cannot be guaranteed during power events.

Is external ECC hardware required for NAND512W3A2BN6E?

Yes. While the device includes 16 spare bytes per 512-byte page for ECC metadata, it does not perform on-die error correction. Host-side ECC (e.g., BCH 4-bit or stronger) must be implemented in the controller or SoC to detect and correct bit errors - essential for achieving the rated 100,000 program/erase cycles and 10-year data retention.