AT27C256R-45PU

The AT27C256R-45PU is a 32K x 8-bit (256 Kbit) EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Microchip Technology. It is designed for applications requiring non-volatile memory storage, allowing data to be retained even when power is removed.
Key features include a 45 ns access time, making it suitable for high-speed applications, and a single 5V power supply for operation. The device supports up to 1,000,000 write/erase cycles and has a data retention period of over 20 years.
The AT27C256R-45PU is packaged in a 28-pin DIP (Dual In-line Package), facilitating easy integration into various electronic circuits. It is primarily used in consumer electronics, automotive control systems, and industrial applications where reliable data storage is essential.
Overall, the AT27C256R-45PU offers a balance of performance, reliability, and ease of use for developers needing compact, non-volatile memory solutions.

The AT27C256R-45PU is a 32K x 8-bit EEPROM. Equivalent products include:
1. 27C256 (general equivalent)
2. AM27C256
3. CAT27C256
4. MBM27C256
5. M27C256
Ensure compatibility in voltage, timing, and pin configuration when considering alternatives. Always refer to the datasheet for specific requirements.

The AT27C256R-45PU is a 256Kb (32K x 8) EEPROM featuring the following key attributes:
1. Memory Type: UV erasable EPROM, allowing for data retention and reprogramming.
2. Access Speed: 45 ns maximum access time, suitable for fast applications.
3. Voltage Range: Operates at a supply voltage of 5V, making it compatible with standard logic levels.
4. Pin Configuration: Dual in-line package (DIP) with 28 pins, facilitating easy integration into various circuits.
5. Byte-Wide Organization: Supports byte-level programming and reading, enhancing flexibility in data handling.
6. Data Retention: Offers reliable data retention for up to 20 years.
7. Programming Method: Utilizes a standard EPROM programmer for efficient data input.
8. Temperature Range: Functional across a wide temperature range, typically from 0°C to 70°C.
These features make the AT27C256R-45PU suitable for applications in consumer electronics, automotive systems, and microcontroller interfacing.

The AT27C256R-45PU is a 32-pin EEPROM (Electrically Erasable Programmable Read-Only Memory) chip. It has a pin count of 32. The primary functions of its pins are as follows:
1. Address Pins (A0-A7, A8-A11): Used to select the memory address for read or program operations.
2. Data Pins (D0-D7): Bidirectional data bus for data input and output.
3. Chip Enable (CE): Activates the chip; the device is enabled when this pin is low.
4. Output Enable (OE): Controls output; data is available on the data bus when this pin is low.
5. Write Enable (WE): Controls write operations; programming occurs when this pin is low.
6. Vcc: Supply voltage pin (typically +5V).
7. GND: Ground reference.
8. A0-A11: Used for addressing the 32K x 8 memory cells.
This device operates at a maximum access time of 45 ns, allowing efficient data retrieval and storage.

The AT27C256R-45PU is manufactured by Microchip Technology Inc. This company is a leading provider of microcontroller, mixed-signal, analog, and memory products. Founded in 1989 and headquartered in Chandler, Arizona, Microchip specializes in providing a diverse range of embedded control solutions for various applications, including automotive, industrial, consumer, and communications markets.
Microchip is known for its focus on innovative design and development, offering a wide array of integrated circuits (ICs) and development tools. The AT27C256R-45PU is a 256Kb (32K x 8) CMOS EPROM that is used for applications requiring non-volatile memory. The company emphasizes reliability, quality, and customer support in its operations, making it a key player in the semiconductor industry.

The AT27C256R-45PU is a 32K x 8-bit EEPROM used in various application areas, including:
1. Embedded Systems: Storing firmware and boot code.
2. Consumer Electronics: Configuration data in devices like TVs and audio equipment.
3. Industrial Automation: Parameter storage for programmable logic controllers (PLCs).
4. Telecommunications: Storing settings and firmware in communication devices.
5. Automotive: Retaining calibration data and settings in electronic control units (ECUs).
6. Medical Devices: Saving patient data and configuration settings.
Its non-volatile nature makes it suitable for applications requiring reliable data retention even after power loss.

The AT27C256R-45PU is packaged in a 28-pin DIP (Dual In-line Package) form factor. This type of package is commonly used forEPROMs, allowing for easy mounting on printed circuit boards.