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AT27C256R-55JC

AT27C256R-55JC Description

The AT27C256R-55JC is an EPROM (Erasable Programmable Read-Only Memory) integrated circuit designed by Microchip Technology. This memory IC chip features a parallel memory interface and is organized in a 32K x 8 configuration, providing a total memory size of 256 Kbit. It is housed in a 32-pin PLCC (Plastic Leaded Chip Carrier) package and is suitable for surface mount applications. The AT27C256R-55JC operates within a voltage range of 4.5V to 5.5V and has an access time of 55 nanoseconds. It is designed to function within an operating temperature range of 0°C to 70°C. The product is classified under HTSUS code 8542.32.0061 and has a moisture sensitivity level (MSL) of 2, which ensures a 1-year shelf life under appropriate storage conditions.

AT27C256R-55JC Features

• Memory Organization: The AT27C256R-55JC is organized as 32K x 8, offering a total of 256 Kbit of memory. This organization allows for efficient storage and retrieval of data in a variety of applications.
• Parallel Interface: The parallel memory interface ensures high-speed data transfer, making it suitable for applications requiring rapid access to stored information.
• Fast Access Time: With an access time of 55 nanoseconds, the AT27C256R-55JC provides quick read operations, enhancing the performance of systems that rely on frequent data retrieval.
• Wide Operating Voltage Range: The chip operates within a voltage range of 4.5V to 5.5V, providing flexibility in power supply requirements and ensuring compatibility with a variety of power sources.
• Surface Mount Compatibility: The surface mount mounting type allows for easy integration into modern printed circuit boards (PCBs), facilitating compact and reliable designs.
• Moisture Sensitivity Level (MSL) 2: The MSL rating of 2 ensures that the chip remains unaffected by moisture for up to one year, reducing the risk of damage during storage and handling.

AT27C256R-55JC Applications

The AT27C256R-55JC is ideal for a range of applications where non-volatile memory is required. Its fast access time and parallel interface make it particularly suitable for:

• Embedded Systems: In applications such as microcontrollers and microprocessors, the AT27C256R-55JC can store firmware and critical data that need to be quickly accessed during operation.
• Consumer Electronics: Devices like digital cameras, gaming consoles, and home appliances can benefit from the reliable storage and quick data retrieval capabilities of this EPROM.
• Industrial Control Systems: The robustness and non-volatile nature of the AT27C256R-55JC make it a reliable choice for storing configuration data and control parameters in industrial automation and control systems.
• Telecommunications: In communication equipment, the chip can store essential data and instructions required for the operation of modems, routers, and other networking devices.

Conclusion of AT27C256R-55JC

The AT27C256R-55JC is a versatile and reliable EPROM IC designed for a variety of applications requiring non-volatile memory. Its fast access time, parallel interface, and surface mount compatibility make it an excellent choice for modern electronic designs. Despite being marked as obsolete, the AT27C256R-55JC continues to offer significant advantages in terms of performance and reliability. Its wide operating voltage range and moisture sensitivity level ensure that it remains a robust solution for both existing and new applications.