Microchip Technology SST39SF040-70-4C-PHE Flash Memory

The SST39SF040-70-4C-PHE is a high-quality, 4 Mbit (512K x 8-bit) CMOS Multi-Purpose Flash (MPF) manufactured by Microchip Technology. Designed for reliability and performance, this non-volatile flash memory offers a cost-effective solution for storing boot code, firmware, and data that require frequent updating in various electronic applications.

Key Features

• Memory Size: 4 Megabits (512K x 8)
• Speed: 70 ns access time
• Operating Voltage: 4.5V to 5.5V
• Endurance: 100,000 cycles per block
• Temperature Range: 0°C to +70°C
• Package: 32-lead PLCC (Plastic Leaded Chip Carrier)

The SST39SF040-70-4C-PHE is designed with a sector-erase architecture, which provides flexible data management. Each chip contains 128 sectors, each 4 Kbytes, allowing for efficient memory allocation and minimizing the need to erase and rewrite the entire chip frequently. This feature is particularly useful for applications that need to modify small data sets within the memory.

With its fast read access time of 70 nanoseconds, the SST39SF040-70-4C-PHE ensures swift data retrieval, making it suitable for high-performance computing tasks. The device supports both Byte-Program and Chip-Erase operations, providing versatility for different programming requirements. The Byte-Program operation can be completed in less than 20 µs, and the Chip-Erase operation can be performed in 18 ms typical, allowing for efficient updates and changes to the stored data.

The robust design of the SST39SF040-70-4C-PHE ensures data retention of at least 100 years and an endurance of 100,000 cycles per block, demonstrating its reliability for long-term applications. The device operates over a standard temperature range of 0°C to +70°C, making it suitable for commercial-grade applications.

Overall, the SST39SF040-70-4C-PHE from Microchip Technology is an excellent choice for designers looking for a dependable and flexible flash memory solution. With its sector-erase capability, fast access time, and high endurance, it is well-suited for a wide range of applications, including embedded systems, telecommunications, digital consumer electronics, and industrial automation.