Microchip Technology, Inc. Memory - AT49F040-90PC AT49F040-90PC

The AT49F040-90PC is a 4 megabit (512K x 8) Flash Memory device that operates at a single voltage of 5V for both read and reprogramming. It features a fast read access time of 90 ns and a fast erase cycle time of 10 seconds. The device supports byte-by-byte programming with a time of 50 ¬µs per byte and includes an internal program control and timer. This memory chip incorporates a 16K byte boot block with a lockout feature, allowing for secure code storage. It has a typical endurance of 10,000 write cycles and low power dissipation, with an active current of 50 mA and a CMOS standby current of 100 ¬µA. The AT49F040-90PC is designed for in-system reprogrammability without the need for high input voltages, making it suitable for various applications requiring reliable non-volatile memory. The device is available in a 32-lead PDIP package and is suitable for commercial temperature ranges from 0¬8C to 70¬8C.