Cypress' closest suggested migration path from the AM29LV800BB70 is to the S29AL008J. However, please note, athough the command set may be compatible, the pin assignments may not be compatible. Therefore, PC board/Circuit modifications may be required.
The S29AL008J is an 8Mb, (x8 - BYTE / x16 - WORD), 3.0V Conventional FLASH device.
URL to S29AL008J datasheet :