F59D2G81XA-45BG2B

The F59D2G81XA-45BG2B is a 2 Gbit (256M × 8) single-level cell (SLC) NAND Flash memory device from ESMT. It implements an asynchronous parallel I/O interface with a highly multiplexed 8-bit bus and standard control signals to provide high-performance non-volatile storage in a low pin-count footprint.

Designed for systems that need durable, field-proven NAND storage, the device combines SLC technology, ONFI 1.0 protocol compliance, and a compact 63-ball BGA package to offer reliable data retention and endurance for embedded storage and firmware/data logging applications.

Key Features

• Memory Architecture 2.147 Gbit organized as 256M × 8 with a device size of 2,048 blocks, 2 planes × 1,024 blocks per plane, page size of 2,176 bytes (2,048 + 128), and block size of 64 pages (128K + 8K bytes).
• SLC NAND Technology Single-level cell (SLC) construction provides endurance and data retention characteristics suitable for high-cycle applications; endurance specified at 100,000 program/erase cycles with uncycled data retention of 10 years.
• Performance Part marked with a 45 ns speed grade; asynchronous I/O with tRC / tWC listed as 30 ns. Array performance includes typical read page time of 30 µs, typical program page time of 200 µs, and typical erase block time of 2 ms.
• Interface & Protocol Asynchronous parallel interface using an 8-bit multiplexed I/O bus and standard control signals (CE#, CLE, ALE, WE#, RE#). ONFI 1.0-compliant command set with advanced commands, read/program cache modes, OTP mode, and two-plane commands (ECC off only).
• Power Low-voltage operation with supply range 1.7 V to 1.95 V (nominal 1.8 V), enabling compatibility with 1.8 V system domains.
• Reliability & Status Built-in operation status byte and Ready/Busy# (R/B#) for software and hardware detection of operation completion; device shipped with Block 0 valid and initial RESET (FFh) required after power-on. Data retention and endurance meet JESD47G-compliant retention requirements.
• Package & Temperature Surface-mount 63-ball BGA (BGA-63) package for compact board integration. Commercial operating temperature range: 0 °C to +70 °C. RoHS compliant.

Typical Applications

• Embedded Storage Use as onboard non-volatile storage for firmware, configuration data, or code shadowing where SLC endurance and data retention are required.
• Industrial and Consumer Electronics Suitable for designs that benefit from a low pin-count, high-density flash device and require reliable program/erase cycles and long data retention.
• Data Logging and Measurement Systems Appropriate for applications that demand frequent writes and long-term storage integrity, leveraging the device’s 100,000 program/erase cycle endurance and 10-year data retention.

Unique Advantages

• High Endurance Rated for 100,000 program/erase cycles, supporting applications with frequent update requirements.
• Robust Data Retention Uncycled data retention specified at 10 years, aligning with long-term storage needs.
• ONFI 1.0 Compliance Standardized command set and interface behavior simplifies integration with ONFI-compatible controllers and firmware.
• Low-Voltage 1.8 V Operation Operates across a 1.7 V to 1.95 V range for straightforward integration into 1.8 V systems.
• Compact BGA Package 63-ball BGA (BGA-63) enables a small board footprint while preserving necessary control and status signals for embedded designs.
• Advanced Command and Cache Modes Support for program/read page cache modes, OTP, and programmable drive strength for flexible performance tuning and secure one-time data storage.

Why Choose F59D2G81XA-45BG2B?

The F59D2G81XA-45BG2B offers a combination of SLC reliability, ONFI-standard interfacing, and compact packaging that suits embedded systems requiring durable non-volatile storage. Its documented endurance and retention figures, together with asynchronous high-performance array timings and status signaling, make it a practical choice for designs that must balance performance, longevity, and board-level integration.

This device fits designs where long-lasting program/erase cycles, predictable array-level timings (read/program/erase), and a small-footprint BGA package are priorities. The 1.8 V supply range and compliance details support straightforward integration into existing 1.8 V platforms while preserving future upgrade paths to higher densities without board redesign.

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