AT28C64B-15PC

The AT28C64B-15PC is a 64K-bit (8K x 8) 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 without power. This specific variant operates with a maximum access time of 150 ns, making it suitable for high-speed applications.
The device supports parallel interface and features a dual power supply, with typical operating voltages of 5V. The AT28C64B allows for in-system programming and is compatible with various microcontrollers and systems. It features a 32-byte page write capability, enabling efficient data writing.
Key characteristics include a byte-wise or page-wise programming function, endurance of around 1 million write/erase cycles, and a retention period of 20 years. Its applications span from consumer electronics to automotive systems, where reliable, fast, and non-volatile memory is essential. Overall, the AT28C64B-15PC is an effective solution for embedded system designers looking for dependable EEPROM storage.

The AT28C64B-15PC comes in a 28-pin plastic DIP (Dual In-line Package) type.

The AT28C64B-15PC is a 64K (8K x 8) EEPROM with a 28-pin Dual In-line Package (DIP) configuration.
Pin Count: 28 pins
Function of Key Pins:
1. A0-A13 (Pins 1-14): Address inputs for selecting memory locations.
2. D0-D7 (Pins 15-22): Data input/output lines for reading and writing data.
3. GND (Pin 14): Ground connection.
4. VCC (Pin 28): Supply voltage (typically +5V).
5. OE (Pin 22): Output Enable; activates the output drivers.
6. CE (Pin 20): Chip Enable; activates the device.
7. WE (Pin 21): Write Enable; controls write operations.
This device is primarily used for non-volatile memory storage applications, allowing users to retain data without power.

The AT28C64B-15PC is manufactured by Microchip Technology Inc. Microchip is a leading company in the semiconductor industry, specializing in microcontrollers, memory products, and analog semiconductors. Founded in 1989, Microchip designs and develops a wide range of embedded control solutions for various applications, including automotive, industrial, consumer, and communications. The company is known for its commitment to innovation and quality, providing products that enable engineers to create efficient and reliable electronic systems. Microchip also offers comprehensive development tools and support to assist designers in their projects.

The AT28C64B-15PC is a 64-kilobit EEPROM used in various applications such as firmware storage, programmable logic devices, microcontroller memory expansion, and data storage in consumer electronics. It is suitable for use in embedded systems, industrial automation, automotive electronics, and telecommunications, where non-volatile storage is essential for retaining data without power.

The AT28C64B-15PC is a 64K EEPROM chip. Equivalent products include the 27C64, MBM29A640 (or equivalents from other manufacturers), and M27C64. However, ensure that the voltage and pin configurations match your specific application requirements before substituting.