AM29F040B90JF/PROG – AMD

The AM29F040B90JF/PROG is a 4-Mbit (512 K x 8-bit) CMOS flash memory device manufactured by AMD, configured for parallel data access. This specific variant, designated “/PROG,” signifies that the device is delivered pre-programmed by the manufacturer. The core memory array utilizes a 0.35µm process technology, enabling a typical access time of 90ns, as indicated by the “90” in the part number. The device operates from a single 5V power supply and supports both asynchronous read and write operations. The J-leaded Flatpack (JF) package offers a compact footprint suitable for surface-mount assembly. Pre-programming eliminates the need for initial in-system programming, streamlining the manufacturing process for applications requiring specific firmware or data storage upon deployment. The programmed data is non-volatile, retained even when power is removed.