AT27C512R-45PU: Features, Specs & More
The AT27C512R-45PU is a one-time programmable EPROM memory chip used to store firmware or permanent data in electronic systems. In this comprehensive article, we'll delve into the intricacies of the AT27C512R-45PU, uncovering its definition, key features, specifications, applications, and a closer look at its manufacturer.
Catalog
AT27C512R-45PU’s Overview
The AT27C512R-45PU is a high-performance non-volatile EPROM memory device designed for reliable data storage in embedded and industrial systems. It belongs to the parallel EPROM family and provides stable memory retention even without power, making it a trusted solution in legacy and mission-critical electronics.
With a memory capacity of 512Kbit organized as 64K x 8, this device delivers efficient data structuring for firmware storage and program execution. Its 45 ns access time supports fast read operations, which is essential for time-sensitive embedded applications.
Engineers often choose this device when stability, simplicity, and deterministic memory behavior are more important than frequent rewritability.
Key Features
Let's delve into the standout features that make the AT27C512R-45PU a standout in the world of electronics:
The AT27C512R-45PU is widely used because of its reliable architecture and stable performance.
The device offers non-volatile memory retention for long-term data storage.
The memory size is 512Kbit with a 64K x 8 organization.
The device supports a fast 45 ns access time for quick data retrieval.
The operating voltage range is 4.5V to 5.5V for standard logic compatibility.
The device supports a parallel interface for direct system integration.
The operating temperature range is -40°C to 85°C for industrial environments.
The package type is 28-DIP for through-hole PCB assembly.
The technology is EPROM based on OTP-style programming workflows.
These characteristics make the device suitable for stable firmware storage in embedded systems.
Specifications
Now, let's take a closer look at the technical specifications that define the capabilities of the AT27C512R-45PU:
Type | Parameter |
Memory Type | Non-Volatile |
Memory Format | EPROM |
Technology | EPROM - OTP |
Memory Size | 512Kbit |
Memory Organization | 64K x 8 |
Memory Interface | Parallel |
Access Time | 45 ns |
Voltage - Supply | 4.5V ~ 5.5V |
Operating Temperature | -40°C ~ 85°C (TC) |
Mounting Type | Through Hole |
Package / Case | 28-DIP (0.600", 15.24mm) |
Supplier Device Package | 28-PDIP |
Base Product Number | AT27C512 |
Applications
The AT27C512R-45PU is commonly used in systems that require stable and permanent firmware storage.
Industrial control systems use it for embedded firmware storage.
Consumer electronics use it for fixed system logic and configuration data.
Automotive electronics use it for reliable onboard control logic.
Communication systems use it for firmware boot storage.
Legacy computing systems use it for BIOS and ROM replacement functions.
Its predictable behavior makes it ideal for deterministic systems where memory changes are rare.
AT27C512R-45PU’s Manufacturer
Microchip Technology, a global leader in the semiconductor industry, stands at the forefront of innovation, consistently pushing the boundaries of technology to create solutions that power the interconnected world. With a rich history dating back to 1989, Microchip has become synonymous with cutting-edge microcontroller and analog products. Renowned for its commitment to quality, reliability, and customer satisfaction, the company offers a comprehensive portfolio of integrated circuits and embedded solutions. Microchip's diverse range of products caters to a wide array of industries, including automotive, industrial, consumer electronics, and healthcare.
Conclusion
The AT27C512R-45PU EPROM memory device remains a solid solution for embedded systems requiring reliable, non-volatile firmware storage. Its combination of 512Kbit capacity, 45 ns access speed, and industrial-grade operating range ensures consistent performance in demanding applications.
Backed by Microchip Technology, this device continues to serve engineers working on legacy systems, industrial controllers, and embedded electronics where stability is more important than frequent memory rewriting.
For designers seeking a proven EPROM solution with predictable behavior, the AT27C512R-45PU remains a practical and trusted option in the electronics landscape.
