AT28C64B-15PC

The AT28C64B-15PC is an electrically erasable programmable read-only memory (EEPROM) developed by Atmel, now part of Microchip Technology. This device features a storage capacity of 64 kilobits, organized as 8,192 words of 8 bits each. The "15PC" in its designation refers to its 150-nanosecond access time and its packaging type, which is a 28-pin plastic dual in-line package (PDIP).
Key features of the AT28C64B include byte-level write capability, which allows for efficient updates without needing to erase entire sectors. It supports up to 100,000 write cycles per byte, ensuring durability for frequent updates. The device also includes data retention of over 10 years, making it suitable for non-volatile storage applications. Its self-timed programming cycle simplifies the programming process, while internal error correction enhances data reliability. The AT28C64B is commonly used in applications requiring reprogrammable, non-volatile memory, such as firmware storage, data logging, and embedded systems. Its compatibility with standard EEPROM protocols makes it easy to integrate into existing systems.

The AT28C64B-15PC is a 64K (8K x 8) EEPROM. Equivalent products include:
1. Microchip 28C64B - Another EEPROM with similar specifications.
2. STMicroelectronics M28C64 - Offers similar functionality in the EEPROM category.
3. Catalyst Semiconductor CAT28C64 - Provides comparable features and size.
4. ON Semiconductor N28C64 - Another alternative in the same EEPROM class.
These chips have similar storage capacity and electrical characteristics, making them suitable substitutes for the AT28C64B-15PC.

The AT28C64B-15PC is a 64K (8K x 8) EEPROM with several key features:
1. Fast Access Time: It has a quick access time of 150 ns, making it suitable for high-speed applications.
2. Endurance: The EEPROM provides 100,000 write cycles per byte, ensuring long-term reliability and durability.
3. Data Retention: It offers a data retention period of 10 years, preserving stored data over an extended period.
4. Programming: The device supports byte-wise programming with a simple interface, facilitating ease of use.
5. Power Supply: Operates with a single 5V power supply, simplifying power requirements.
6. Low Power Consumption: It features low power consumption both in active mode and standby mode.
7. Automatic Write Timing: The chip automatically manages the write cycle timing, eliminating the need for external components to control timing.
8. Self-timed Write Cycle: This feature ensures precise and reliable programming without external clocking.
9. Hardware Data Protection: It includes mechanisms to protect data against unintended writes.
10. Package: Comes in a 28-pin PDIP package, facilitating easy integration into designs.
These features make the AT28C64B-15PC a versatile and reliable choice for applications requiring non-volatile memory.

The AT28C64B-15PC is a 64K (8K x 8) EEPROM with a 28-pin configuration. It is designed for non-volatile storage applications where data retention and reliability are crucial. The pin functions include:
- Address Pins (A0-A12): These 13 pins are used to specify the address location within the EEPROM to read from or write to.
- Data Pins (I/O0-I/O7): These 8 pins are bidirectional and used for data input during write operations and data output during read operations.
- Chip Enable (CE or /CE): This pin activates the chip, enabling it to perform read or write operations.
- Output Enable (OE or /OE): When low, this pin enables the data output drivers during read operations.
- Write Enable (WE or /WE): This pin controls the writing process. A low signal initiates a write operation.
- Power Supply (VCC): This pin powers the chip and is typically connected to a +5V supply.
- Ground (GND): This pin is the common ground for the device.
These pins work together to provide reliable data storage, with the ability to electrically erase and program individual bytes.

The AT28C64B-15PC is manufactured by Microchip Technology Inc. This company is a leading American provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. Microchip Technology specializes in embedded control applications and provides a wide range of products used in various sectors, such as automotive, industrial, consumer electronics, and communications. The company is known for delivering reliable and cost-effective solutions for embedded control systems, focusing on providing comprehensive support and innovative technologies.

The AT28C64B-15PC is a 64KB EEPROM and is commonly used in applications requiring non-volatile memory storage. Typical application areas include:
1. Embedded Systems: For firmware storage and data logging.
2. Consumer Electronics: Used in devices like remote controls and digital cameras for configuration settings.
3. Automotive: Storing calibration data and system settings.
4. Telecommunications: For configuration and programming data in networking equipment.
5. Industrial Control Systems: Used in programmable logic controllers (PLCs) for maintaining settings.
6. Medical Devices: For storing patient data and device settings.
7. Computing: BIOS storage and system configuration.
These applications benefit from the EEPROM’s non-volatile nature, allowing data retention without power.

The AT28C64B-15PC is an EEPROM chip produced by Atmel, now part of Microchip Technology. Its package type is a 28-pin Plastic Dual In-line Package (PDIP).