AT28C64B-15PU

The AT28C64B-15PU is a 64K (8,192 x 8) parallel Electrically Erasable Programmable Read-Only Memory (EEPROM) chip. It features a fast access time of 150 nanoseconds and operates on a single 5V power supply. This EEPROM is designed for non-volatile memory storage, which means it retains data even when power is removed.
Key features include byte-level write capability, self-timed write cycles, and the ability to perform up to 100,000 write/erase cycles. The chip also includes data protection features such as hardware data protection and software data protection to prevent accidental writes.
The AT28C64B-15PU is housed in a 28-pin dual in-line package (DIP), making it suitable for various applications, including consumer electronics, industrial machines, and other systems requiring reliable data storage. Its ease of use, robust design, and flexibility make it popular for embedded systems that need frequent data updates without losing information when powered off.

The AT28C64B-15PU is a 64K (8K x 8) EEPROM. Equivalent products include:
1. Microchip 28C64 series
2. STMicroelectronics M28C64 series
3. Catalyst CAT28C64 series
4. Xicor X28C64 series
These chips typically have similar specifications in terms of memory size, voltage requirements, and access times, making them interchangeable for many applications. Always verify specific parameters to ensure compatibility.

The AT28C64B-15PU is a 64K (8K x 8) parallel EEPROM. It has 28 pins, each with specific functions:
1. A0-A12 (13 pins): Address inputs used to select the memory location.
2. I/O0-I/O7 (8 pins): Data input/output lines for reading from or writing to the EEPROM.
3. CE (Chip Enable): Activates the chip for data access. Must be low for the chip to be active.
4. OE (Output Enable): When low, enables the output buffer to drive data onto the I/O lines.
5. WE (Write Enable): When low, allows data to be written to the memory.
6. NC (No Connect): Unused pins without internal connection, typically two on a 28-pin package.
7. VCC: Power supply pin, usually requiring a 5V DC supply.
8. GND: Ground pin for the power supply.
These pins collectively facilitate data storage and retrieval operations on the EEPROM by allowing address selection, data input/output, and control of read/write operations.

The AT28C64B-15PU is manufactured by Microchip Technology Inc. This company is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. Microchip's comprehensive product portfolio enables its customers to create optimal designs, which reduce risk while lowering total system cost and time to market. The company serves more than 120,000 customers across the industrial, automotive, consumer, aerospace and defense, communications, and computing markets.

The AT28C64B-15PU is a 64KB EEPROM used in applications requiring non-volatile memory. Its application areas include:
1. Embedded Systems: For storing firmware and configuration data.
2. Industrial Control Systems: Retaining settings and calibration data.
3. Consumer Electronics: Memory for settings, preferences, and firmware.
4. Telecommunications: Used in devices for storing protocols and network configurations.
5. Automotive: Data storage for non-volatile data like fault logs.
6. Medical Devices: Storing critical data or firmware updates.
7. Computing: BIOS storage or other system settings.
8. Instrumentation: Data logging and device calibration storage.
Its non-volatile nature ensures data retention even when the power is off, making it suitable for these applications.

The AT28C64B-15PU is an EEPROM memory chip from Microchip Technology, packaged in a 28-pin Dual Inline Package (DIP). This type of package is suitable for through-hole mounting on a circuit board and is often used in prototyping and hobbyist projects.