Microchip 64 kB EEPROM 150 ns 28-Pin SOIC Parallel Memory Chip AT28C64B-15SU

Microchip AT28C64B-15SU is a 64 kB EEPROM memory chip featuring a 150 ns maximum random access time and a 28-pin SOIC package designed for surface mount technology applications. It supports a parallel interface with a maximum clock frequency of 5 MHz, operating reliably across a voltage range from 4.5 V to 5.5 V and temperatures between -40°C and 85°C. This device is engineered for applications needing non-volatile, electrically erasable memory with individual byte addressing, making it ideal for program storage that is infrequently changed.

The EEPROM technology used in this chip provides up to 10 years of data retention, ensuring data integrity over extended periods. With a supply current of 40 mA, it balances performance with power efficiency and supports an organization of 8192 words consisting of 8 bits each (8K x 8 bit). Its compact form factor with a height of 2.8 mm, length of 17.9 mm, and width of 10.3 mm allows it to fit within space-constrained electronic assemblies.

This Microchip AT28C64B-15SU memory chip is suitable for diverse industrial, electronic, and manufacturing applications, including embedded control systems, data logging devices, and any system requiring reliable, reprogrammable memory. Its parallel access and byte-level erase/write capability provide precise control over stored data, differing from flash memory that requires block writes and erases.

64kB electrically erasable memory for flexible data management. 28-pin SOIC surface-mount package enabling compact PCB integration. 5 MHz maximum clock frequency for optimal performance. Wide supply voltage (4.5 V to 5.5 V) range supporting various power conditions.

Extended operating temperature for robust industrial use. Data retention up to 10 years ensuring reliable long-term storage. Low supply current of 40 mA for power-sensitive applications. Compact physical dimensions for easy integration in electronic devices.

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