STMicroelectronics M27C4002-80XF1 EPROM

The M27C4002-80XF1 is a high-speed 4 Mbit (4,194,304 bits) UV erasable and programmable read-only memory (EPROM) device produced by STMicroelectronics. This memory component is designed to offer a combination of high density, fast access time, and simple integration into a variety of high-performance applications. The M27C4002-80XF1 is an ideal choice for embedded systems that require reliable and durable non-volatile memory storage.

The device is organized as 256K by 16 bits, which allows for efficient memory management and easy interfacing with 16-bit microprocessors. The access time of 80ns (nanoseconds) enables quick data retrieval, making the M27C4002-80XF1 suitable for applications that demand high-speed operations.

One of the key features of this EPROM is its UV erasable window, which allows users to erase the entire chip by exposing it to ultraviolet light. This erasure capability provides flexibility for development, testing, and updating firmware or application code. Once the data is erased, the device can be reprogrammed, making it a reusable and cost-effective solution for prototyping and small production runs.

The M27C4002-80XF1 operates within a supply voltage range of 4.5V to 5.5V, which is standard for 5V logic families, ensuring compatibility with a wide range of existing systems. The programming voltage is 12.75V ± 0.25V, which is applied to the VPP pin during the programming sequence.

For data protection, the M27C4002-80XF1 features a programming lockout mode, which prevents accidental programming or erasure. This is particularly useful in environments where data integrity is a priority. Additionally, the device is offered in a 44-pin Ceramic DIP (Dual In-line Package) with a transparent lid, which not only facilitates UV erasure but also provides robust physical protection for the chip's delicate internal circuitry.

In summary, the STMicroelectronics M27C4002-80XF1 EPROM is a versatile and reliable memory solution that combines large storage capacity, fast access times, and the ability to be erased and reprogrammed multiple times. Its compatibility with 16-bit microprocessors and standard voltage levels makes it an excellent choice for a variety of demanding applications.