The MB29F400TC-90PFTN is a 4-Megabit (512K x 8/256K x 16) CMOS Flash memory device manufactured by Fujitsu Electronics America, Inc. It's designed for applications requiring non-volatile storage that can be electrically erased and reprogrammed in-system. This particular model operates with a 90ns access time and comes in a 56-pin TSOP (Thin Small Outline Package).

Applications

• Embedded Systems: Used for storing boot code, configuration data, and application firmware in a wide range of embedded systems.
• Industrial Control Systems: Stores critical system parameters and operating software for industrial automation equipment.
• Networking Equipment: Used in routers, switches, and other networking devices to store configuration settings and operating systems.
• Consumer Electronics: Found in digital cameras, MP3 players, and other portable devices to store user data and firmware.
• Automotive Electronics: Employed in engine control units (ECUs) and other automotive systems for storing calibration data and software.

Features

• 4-Megabit Density: Provides 4,194,304 bits of storage capacity.
• Sector Architecture: Organized into multiple sectors that can be individually erased, providing flexibility for data management.
• Fast Access Time (90ns): Enables rapid data retrieval for high-performance applications.
• Single 5V Power Supply: Operates with a single 5V power supply, simplifying system design.
• Erase Suspend/Resume: Allows the erase operation to be suspended and resumed, minimizing interruption to system operation.
• Automatic Write Timing: Simplifies the write process and reduces the need for external timing control.

Benefits

• Non-Volatile Storage: Retains data even when power is removed, ensuring data integrity.
• In-System Programmability: Allows for updating firmware and data without removing the device from the system.
• High Performance: The fast access time and efficient sector architecture enable high-speed data access and programming.
• Low Power Consumption: Minimizes power consumption, making it suitable for battery-powered applications.
• Simplified System Design: The single 5V power supply and automatic write timing simplify system integration.

Technical Specifications

The MB29F400TC-90PFTN operates from a single 5V ±10% power supply. It has a typical programming time of 10µs per byte and a typical erase time of 1 second per sector. The operating temperature range is -40°C to +85°C. The device is packaged in a 56-pin TSOP (Thin Small Outline Package).

The memory array is organized as 512K x 8 or 256K x 16, selectable via the BYTE# input. The device supports JEDEC standard commands for erase, program, and read operations.