The TC55257DFI85LEL is a 262,144-bit static RAM (SRAM) from Toshiba Semiconductor and Storage, organized as 32,768 words by 8 bits. It is designed for applications that demand both high speed and low power, such as portable devices, embedded systems, and cache memory. The '85L' in the part number indicates a specific access time and low power characteristic.
Applications:
- Portable Electronics: Ideal for use in devices like digital cameras, MP3 players, and handheld gaming consoles where low power consumption is crucial.
- Embedded Control Systems: Used in microcontrollers and embedded processors for storing program code and data.
- Cache Memory: Implemented in systems to speed up data access and improve overall performance.
- Data Acquisition Systems: Employed in devices that collect and store data, such as sensors and data loggers.
- Medical Devices: Integrated into portable medical equipment requiring reliable and low-power memory.
Features:
- High-Speed Access: Offers an access time of 85 ns for rapid data retrieval.
- Low Power Operation: Designed for minimal power consumption to extend battery life.
- 32K x 8 Bit Organization: Provides a storage capacity of 262,144 bits, arranged for efficient data handling.
- Single 5V Supply: Operates on a single 5V power source, simplifying system design.
- Fully Static: Requires no clock or refresh cycles, simplifying the interface.
- TTL Compatible I/O: Compatible with standard TTL logic levels.
- Three-State Outputs: Allows for easy memory expansion and connection to a data bus.
Benefits:
- Extended Battery Life: Low power consumption ensures longer operation in battery-powered applications.
- Fast Data Access: High-speed access time improves system performance and responsiveness.
- Simplified Integration: Single power supply and TTL compatibility simplify system design and integration.
- Reliable Operation: Static design ensures stable and dependable data storage.
- Cost-Effective: Provides an optimal balance of performance, power efficiency, and cost.
Additional Details:
The TC55257DFI85LEL SRAM typically comes in a standard package such as DIP or SOJ. Its fully static operation means that data is retained as long as power is supplied, without the need for refresh cycles. This feature simplifies the memory interface and reduces system complexity. Its low power consumption makes it suitable for a wide range of battery-powered applications. The three-state outputs allow for easy connection to a microprocessor bus, enabling efficient data transfer. This SRAM is a reliable and efficient solution for embedded systems and portable devices.