Microchip Technology, Inc. Memory AT49F512-70PI

The AT49F512-70PI is a 5-volt-only in-system programmable and erasable Flash Memory device with a capacity of 512K bits, organized as 65,536 words of 8 bits each. It features a fast read access time of 70 ns and a typical byte programming time of 10 µs. The device supports a single voltage operation for both reading and reprogramming, simplifying integration into systems. This memory chip includes an 8K byte boot block with a lockout feature for data integrity, allowing secure code storage that can be protected from reprogramming. The AT49F512 offers a fast erase cycle time of 10 seconds and is designed for low power dissipation, with an active current of 40 mA and a standby current of 100 µA. It is capable of enduring approximately 10,000 write cycles. The device operates with hardware data protection features to prevent inadvertent programming, including voltage sensing and program inhibit functions. It also supports data polling and toggle bit methods for detecting the end of program and erase cycles. The AT49F512-70PI is available in multiple package types, including PDIP, making it suitable for various applications in embedded systems.