The Texas Instruments TMS27C64-20JL is a high-performance, 64-kilobit Erasable Programmable Read-Only Memory (EPROM) chip that offers a versatile storage solution for a wide range of applications. This particular model boasts a 20-nanosecond access time, making it an excellent choice for systems that require fast data retrieval.

Key Features:

• Memory Capacity: 64 Kbit (8,192 x 8 bits), providing ample space for firmware or software code storage.
• Access Time: 20 ns, enabling quick data access which is crucial for high-speed microprocessor systems.
• Single 5V Power Supply: Operates on a single 5-volt power supply, simplifying the power design for the system.
• Programming Voltage: 12.5V, which is a standard programming voltage for EPROMs of this era.
• Package: The TMS27C64-20JL comes in a 28-pin Ceramic Dual In-line Package (CDIP), providing robust physical protection and reliable connectivity.
• Temperature Range: Specified for operation over the full military temperature range (-55°C to +125°C), ensuring reliability in extreme conditions.
• UV Erasable: The data stored in the EPROM can be erased by exposing the chip to ultraviolet light, allowing for reprogramming and reuse.

Applications:

The TMS27C64-20JL is suitable for a variety of applications that require reliable, non-volatile memory storage. It is commonly used in:

• Embedded systems
• Microcontroller-based applications
• Industrial control systems
• Telecommunication equipment
• Automotive electronics
• Medical devices

Quality and Reliability:

Texas Instruments is known for its commitment to quality and reliability, and the TMS27C64-20JL EPROM is no exception. Each chip is rigorously tested to ensure it meets the high standards expected from Texas Instruments products, providing designers with confidence in their system's memory component.