Summary
2 Mbit 256Kb x8 or 128Kb x16, Boot Block Single Supply Flash Memory 08-Oct-1999
Description
The M29F200B is a 2 Mbit (256Kb x8 or 128Kb x16) non-volatile memory that can be read, erased and reprogrammed. These operations can be performed using a single 5V supply. On power-up the memory defaults to its Read mode where it can be read in the same way as a ROM or EPROM. The M29F200B is fully backward compatible with the M29F200.
Source title
29F200B Datasheet(PDF) - STMicroelectronics