M45PE40 Serial Flash Memory by STMicroelectronics

The M45PE40 is a high-speed 4 Mbit serial Flash memory device manufactured by STMicroelectronics. Designed for a wide range of applications, this memory chip is an optimal solution for sectors that require reliable and flexible non-volatile memory storage. The M45PE40 operates on a 2.7 to 3.6V supply voltage, making it suitable for battery-powered devices and low-power applications.

This serial Flash memory boasts a page-erase architecture, which allows for efficient erasing and programming operations. It is capable of delivering fast data transfer rates with a 75 MHz clock frequency, supporting the Serial Peripheral Interface (SPI) protocol for seamless integration with a host controller. The device also features a page write buffer, enabling efficient programming for both small and large data chunks.

The M45PE40 comes with advanced security features, including a 64-bit unique device number and a 128-bit user-programmable OTP (One-Time Programmable) area, which can be used to store device identification or other sensitive information. The memory chip also supports a hardware write protection mechanism, safeguarding your data against inadvertent changes.

With its wide temperature range of -40°C to 85°C, the M45PE40 is robust and reliable, making it an excellent choice for industrial applications. Its endurance, with up to 100,000 write cycles and a data retention period of 20 years, ensures that data is preserved over long periods, even in harsh operating conditions.

The M45PE40 is available in an 8-pin SOIC (Narrow) package, which is a standard package size that is convenient for PCB design and assembly. Its compatibility with the SPI bus serial interface ensures that it can be easily integrated into existing designs, reducing development time and simplifying product upgrades.

Overall, the M45PE40 from STMicroelectronics is a versatile, high-performance serial Flash memory chip that offers a cost-effective solution for a plethora of applications that require quick, reliable non-volatile storage.