The AT27C256R-70PU is an IC (Integrated Circuit) component manufactured by Microchip Technology Inc. It is a high-performance and fast CMOS 256K (32K x 8) EPROM (Erasable Programmable Read-Only Memory) chip. Let's explore some of its key features:
1. Memory Capacity: The AT27C256R-70PU has a total storage capacity of 256 kilobits, which is equivalent to 32 kilobytes. It is organized as 32,768 words of 8 bits each.
2. CMOS Technology: The component utilizes CMOS technology, which ensures low-power consumption and increased performance compared to other technologies.
3. High-Speed Operation: The "70PU" in the part number denotes its access time or speed, which is 70 nanoseconds (ns). This fast access time allows for quick and efficient read and write operations.
4. Electrically Programmable: The chip is electrically programmable, meaning it can be programmed by applying proper electrical signals. However, it does not support in-circuit programming and requires a separate device or programmer for programming the memory content.
5. Erasable: Unlike some other types of memory, the AT27C256R-70PU is not erasable by exposure to ultraviolet (UV) light but can be programmed multiple times until it reaches the maximum guaranteed erase count of 1,000
