Microchip Technology AT28HC64B-90JU EEPROM

The AT28HC64B-90JU is a high-performance Electrically Erasable Programmable Read-Only Memory (EEPROM) integrated circuit produced by Microchip Technology. This EEPROM offers a substantial 64K (64,000) bits of parallel EEPROM memory, with access times as fast as 90 nanoseconds, making it an excellent choice for applications that require quick data retrieval and storage.

Designed with versatility in mind, the AT28HC64B-90JU features a 28-pin PLCC (Plastic Leaded Chip Carrier) package, which provides a robust and reliable form factor for PCB mounting. The device operates across a wide temperature range, making it suitable for demanding industrial applications where temperature extremes may be encountered.

Key Features:

• Memory Size: 64K (8K x 8)
• Access Time: 90 ns
• Operating Voltage: 5V
• Package: 28-Pin PLCC
• Temperature Range: Industrial (-40°C to +85°C)
• Endurance: 100,000 write cycles
• Data Retention: 10 years at 25°C

This EEPROM device is characterized by its hardware and software data protection features, which include JEDEC standard algorithms for write protection to ensure data integrity during voltage transitions. Additionally, the AT28HC64B-90JU offers a fast parallel interface for high-speed data transfer.

Microchip Technology has designed the AT28HC64B-90JU to be fully compatible with the industry-standard JEDEC byte-wide 28C64 EEPROM, which makes it an easy drop-in replacement for existing designs, ensuring a smooth transition with minimal redesign efforts.

Applications for the AT28HC64B-90JU are diverse and include use in embedded systems, telecommunications, personal computers, medical instruments, and any other systems that require a reliable non-volatile memory solution. With its combination of speed, reliability, and data protection features, the AT28HC64B-90JU stands out as a solid choice for designers looking to incorporate a dependable EEPROM into their electronic designs.

For more information and detailed specifications, designers and engineers are encouraged to consult the datasheet and technical support resources available from Microchip Technology.