EPS_Java Projec is JAVA program can display charts, and handle waypoints, track, and routes. It reads output from the gpstrans program. gpstrans can communicate with Garmin GPS navigators.
S29NS-J
128 Megabit (8 M x 16-Bit), 64 Megabit (4 M x 16-Bit),
32 Megabit (2 M x 16-Bit), and 16 Megabit (1 M x 16 Bit),
110 nm CMOS 1.8-Volt only Simultaneous Read/Write,
Burst Mode Flash Memories
Data Sheet