MT28F640J3FS-115 XMET

The MT28F640J3FS-115 XMET is a 64 Mbit Q-FLASH® parallel non-volatile memory device in a 64-ball FBGA package. It provides asynchronous parallel read/write Flash storage with x8/x16 memory organization and is offered with a 115 ns read access time for the 64 Mbit density.

Designed for systems that require parallel Flash storage with on-chip protection and suspend features, this device operates from 2.7 V to 3.6 V and across an extended temperature range of -40°C to +85°C.

Key Features

• Memory Capacity & Organization — 64 Mbit Flash available in 8M × 8 or 4M × 16 configurations to support byte- or word-oriented system interfaces.
• Parallel Interface & Read Performance — Asynchronous parallel interface with page mode reads and a 115 ns/25 ns read access time specified for the 64 Mbit device.
• Power Supply — Single-supply operation specified from 2.7 V to 3.6 V for both VCC operation and application programming.
• Package — 64-ball FBGA, 10 × 13 mm footprint (1.00 mm pitch), suitable for compact board-level implementations.
• Endurance & Reliability — Specified for 100,000 erase cycles per block with automatic write and erase algorithms and automatic suspend options (block erase/program suspend-to-read and program suspend-to-read).
• Data Protection & Security — 128-bit protection register, 64-bit unique device identifier, 64-bit user-programmable OTP cells, and enhanced protection behavior with VPEN = VSS plus flexible sector locking and lockout during power transitions.
• Programming Performance — Write-buffer-assisted programming with an effective programming time of 5.6 μs per byte when using the write buffer.
• Standards & Interface — Industry-standard pinout, TTL-compatible inputs/outputs, Common Flash Interface (CFI) support and Scalable Command Set for command compatibility and query capability.

Typical Applications

• Embedded systems requiring parallel non-volatile storage — Use where a parallel Flash interface and 64 Mbit capacity are required for code or data retention.
• Industrial equipment operating over extended temperature — Suitable for designs that need reliable Flash operation from -40°C to +85°C.
• Compact board-level implementations — The 64-ball FBGA (10×13) package supports space-constrained layouts needing a parallel Flash device.

Unique Advantages

• Direct parallel interface compatibility: Supports x8 or x16 organization and asynchronous page-mode reads for integration with parallel system buses.
• Wide supply range: 2.7 V to 3.6 V operation reduces the need for additional voltage translation in many 3 V designs.
• Extended temperature rating: Specified operation from -40°C to +85°C for reliability in temperature-variable environments.
• Compact FBGA footprint: 64-ball, 10×13 mm package enables small PCB area for dense designs.
• On-chip protection and identification: 128-bit protection register, unique device ID, OTP cells and flexible sector locking provide configurable data protection and traceability.
• Suspend and buffer programming features: Automatic suspend options and write-buffer programming reduce read/program latency and aid system responsiveness during maintenance operations.

Why Choose MT28F640J3FS-115 XMET?

The MT28F640J3FS-115 XMET positions itself as a practical, specification-driven parallel Flash solution for designs that require 64 Mbit non-volatile storage with defined timing, voltage, and temperature characteristics. Its combination of 115 ns read access time, 2.7 V–3.6 V operation, and extended -40°C to +85°C temperature range make it suitable for systems that need predictable Flash behavior and durable erase/program endurance.

This device is appropriate for engineers needing a compact FBGA package with industry-standard pinout, on-chip protection registers, unique device identifiers, and CFI/Scalable Command Set support—offering a clear, verifiable specification set for long-term integration and serviceability.

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