The TC55257CFL-85L is a low-power 262,144-bit static RAM (SRAM) from Toshiba Semiconductor and Storage, organized as 32,768 words by 8 bits. The 'C' likely indicates a process or feature enhancement, 'FL' signifies a particular package type, '85' suggests an access time of 85ns, and 'L' denotes low power consumption. This SRAM is designed for applications where minimizing power usage is crucial, even if it means sacrificing some speed. Typical applications include battery-backed systems, portable devices, and low-power embedded controllers.

Applications:

• CMOS RAM backup for data retention during power outages
• Low-power embedded systems
• Portable electronic devices with extended battery life requirements
• Industrial control systems with stringent power budgets
• Data logging applications where long-term data storage is required

Features:

• Access Time: 85 ns
• Very Low Power Consumption: Optimized for battery operation.
• Organization: 32,768 words x 8 bits
• Single 5V power supply
• TTL compatible inputs and outputs
• Three-state outputs
• Package: 'FL' package type (refer to datasheet for details)

Benefits:

• Extended Battery Life: Extremely low power consumption maximizes operating time in battery-powered devices.
• Data Retention: Ideal for applications requiring long-term data retention in the absence of main power.
• Reduced Heat Dissipation: Minimizes heat generation, enabling denser and more efficient system designs.
• Easy Integration: TTL compatibility and three-state outputs facilitate seamless interfacing with other system components.
• Reliable Operation: Manufactured by Toshiba, a recognized and reputable semiconductor manufacturer.

Additional Details:

The TC55257CFL-85L operates from a single 5V power supply and features TTL-compatible inputs and outputs for straightforward interfacing with standard logic circuits. The three-state outputs allow for flexible memory expansion and bus sharing. For precise specifications, including standby and operating current, as well as the details of the 'FL' package, consult the official Toshiba datasheet for this specific part number.

The primary advantage of this SRAM is its exceptionally low power consumption. This characteristic makes it particularly well-suited for applications prioritizing longevity and data preservation over raw speed.