Microchip 512 kB EPROM 32-Pin PLCC, OTP Reprogrammable, 4.5-5.5 V Supply AT27C512R-45JU

Microchip AT27C512R-45JU is a One Time Programmable (OTP) EPROM device featuring 512 kB memory capacity with 64k x 8 bit organization. This 32-pin PLCC package component is designed for parallel interface circuits and is optimized for industrial reliability and fast access times with a maximum random access time of 45 ns.

The device operates within a supply voltage range of 4.5 V to 5.5 V, ensuring compatibility with standard logic levels. Its through-hole mount type facilitates easy integration in typical PCB assemblies. The absence of a UV-erasable window means the device cannot be erased or reprogrammed after programming, providing permanent data retention.

Rated for an operating temperature range of -40°C to 85°C, the AT27C512R-45JU suits various industrial and commercial electronic applications where stable non-volatile memory performance is critical.

The low typical supply current of 100 μA supports energy-efficient designs. The compact PLCC packaging with dimensions of 11.5 mm length, 14.3 mm width, and 3.37 mm height makes this EPROM suitable for space-constrained environments.

512 kB memory organized as 64k x 8 bit words for medium-scale data storage needs. Maximum random access time of 45 ns enables fast read operations. OTP programming technique ensures once-only data programming for secure applications.

Through hole mount and PLCC package type ensure mechanical stability on PCB. Robust operating temperature range from -40°C to 85°C supports harsh environmental conditions. Supply voltages from 4.5 V to 5.5 V accommodate common logic power rails.

Compact form factor assists in efficient PCB layout and space saving. No in-system programmability, requiring external programming before installation. Ideal for industrial, electronic manufacturing and embedded system designs requiring reliable non-volatile memory.

This Microchip EPROM is part of the semiconductor memory family used extensively in electronic components for embedded system memory, computer firmware storage, and other industrial applications. Its OTP nature makes it suitable for permanent firmware installations where data modification is not needed after initial programming.

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