JS28F128P33BF70A – numonyx

The JS28F128P33BF70A is a 128-Mbit (16MB) parallel NOR flash memory device manufactured by Numonyx (now Micron Technology). It features a 3.0V read/write voltage and is organized as 8,388,608 x 16 bits. The device utilizes a 56-pin TSOP (Thin Small Outline Package) for surface mounting. It supports asynchronous read operations and parallel data access, enabling high-speed data transfer. The “F70” designation indicates a 70ns access time, specifying the maximum delay between address input and valid data output. This flash memory is suitable for embedded systems requiring non-volatile storage for code and data, particularly in applications where fast boot times and direct code execution from flash are critical. It is designed for applications requiring high endurance and data retention.