The TMS27C040-12JE is a high-performance, 4 Megabit (4,194,304 bits) EPROM (Erasable Programmable Read-Only Memory) chip from the reputable semiconductor manufacturer, Texas Instruments. This device is designed to offer a reliable storage solution for firmware and other forms of permanent software in a wide range of electronic applications. With its ample storage capacity and fast access time, the TMS27C040-12JE is an excellent choice for use in systems that require large code storage, such as embedded systems, microcontrollers, and various industrial applications.

Key Features

• Memory Size: The device boasts a large memory size of 4 Mbit, allowing ample space for complex software and firmware storage.
• Access Time: With an access time of 120 ns (nanoseconds), this EPROM provides quick data retrieval, contributing to the overall performance and efficiency of the systems it's used in.
• Package Type: The TMS27C040-12JE comes in a JEDEC-standard 32-pin Ceramic Dual In-line Package (CDIP), ensuring robustness and ease of integration into a variety of circuit boards.
• Single 5V Power Supply: The device operates on a single 5V power supply, simplifying power management within the system.
• Extended Temperature Range: It is designed to operate over an extended temperature range, making it suitable for use in environments with varying temperature conditions.

Applications

This EPROM is versatile and can be employed in a diverse array of applications, including but not limited to:

• Embedded systems
• Telecommunications
• Automotive electronics
• Industrial control systems
• Medical devices

Programming and Erasure

The TMS27C040-12JE is programmable by standard EPROM programmers and can be erased by exposure to ultraviolet (UV) light, which facilitates the removal of existing data for reprogramming purposes. This feature makes the EPROM reusable and adaptable to changes in software requirements over time.

In summary, the TMS27C040-12JE from Texas Instruments is a robust and reliable memory component, offering a substantial amount of storage space, fast access times, and flexibility for a variety of high-tech applications.