STMicroelectronics M27C256B-90C6 EPROM

The M27C256B-90C6 is a high-speed 256 Kbit EPROM (Erasable Programmable Read-Only Memory) manufactured by STMicroelectronics. This particular EPROM model offers a storage capacity of 256 kilobits and is designed for applications requiring fast access to non-volatile memory. With an access time of 90ns (nanoseconds), it provides efficient performance for a wide range of computing tasks.

The M27C256B-90C6 is encased in a 28-pin CerDIP (Ceramic Dual In-line Package) which ensures robustness and durability, making it suitable for industrial applications that may be exposed to harsh environments. The device operates over a standard temperature range, making it versatile for use in both commercial and industrial settings.

One of the key features of the M27C256B-90C6 is its ability to be electrically erased and reprogrammed. This makes it an ideal choice for development, prototyping, and small-scale production where the ability to update the stored content is necessary. The EPROM is also widely used in legacy systems where memory upgrades or replacements are required.

Programming the M27C256B-90C6 is straightforward, thanks to its compatibility with standard EPROM programmers. The device supports a two-line control function: Chip Enable (E) and Output Enable (G). These lines control the device's state, allowing it to be seamlessly integrated into a variety of system architectures.

STMicroelectronics has designed the M27C256B-90C6 with reliability in mind. It features a high level of protection against accidental erasure due to its programming voltage (VPP) and programming control signal that prevents inadvertent writing to the memory. Additionally, the EPROM has a data retention period that is typically rated for a minimum of 10 years, ensuring the stability and longevity of the data stored within.

In summary, the M27C256B-90C6 from STMicroelectronics is a reliable and efficient choice for applications requiring a fast, durable, and reprogrammable non-volatile memory solution. Its robust packaging, ease of use, and long-term data retention make it a preferred choice for a wide array of electronic systems.