Microchip 64 kB Parallel EEPROM 120 ns 32-Pin PLCC Surface Mount AT28HC64B-12JU

Microchip AT28HC64B-12JU is a high-performance 64 kB Parallel EEPROM with 120 ns maximum random access time, encased in a 32-pin PLCC package designed for surface mount applications. It operates at a standard supply voltage of 5 V ±10% and supports a maximum clock frequency of 5 MHz, suitable for diverse electronic and industrial applications including embedded systems, data logging, and memory storage solutions.

This EEPROM is organized as 8K x 8 bits with a total memory capacity of 64 kilobits and provides a data retention period of 10 years, ensuring reliable long-term storage. Its low standby current of less than 100 μA in deselected mode leads to energy-efficient operation in power-sensitive devices.

The device incorporates a 64-byte page register that enables writing multiple bytes simultaneously, improving programming efficiency. The memory supports both page and byte write functions with self-timed erase and write cycles, typically completed within 10 milliseconds, minimizing programming downtime.

Operating temperature range from -40°C to 85°C allows its use in harsh industrial or automotive settings. The PLCC package dimensions are 12.5 mm in length and 15 mm in width, providing a compact footprint for dense PCB layouts. The surface mount package type aids automated assembly and reduces board space.

The Microchip AT28HC64B-12JU is ideal for applications requiring reliable, non-volatile memory with parallel interface and fast access times, such as embedded controllers, automotive electronics, and consumer devices. It also includes optional software data protection to guard against inadvertent writes and an additional 64 bytes of EEPROM for device identification or tracking purposes.

This parallel EEPROM has a memory size of 64 kB organized as 8K x 8 bit words. Operates with a supply voltage range of 4.5 V to 5.5 V. Maximum clock frequency is 5 MHz, providing fast data access. Equipped with CMOS standby current below 100 μA for low power usage.

Includes a 64-byte page register enabling page and byte write functionality. Supports a self-timed erase and write cycle with a maximum duration of 10 ms. Features data retention of up to 10 years, ensuring long-term data integrity.

Operating temperature range from -40°C to 85°C suits diverse industrial environments. The 32-pin PLCC package measures 12.5 mm in length and 15 mm in width for compact integration. Designed for surface mount assembly, ideal for automated PCB manufacturing processes.

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