4-MBIT (256K X 16 512K X 8) BOOT BLOCK FLASH MEMOR.
PA28F400BX - 4-MBIT BOOT BLOCK FLASH MEMORY
E28F400BX - 4-MBIT BOOT BLOCK FLASH MEMORY
A28F400BX-T - 4-MBIT BOOT BLOCK FLASH MEMORY
TE28F400BX - 4-MBIT BOOT BLOCK FLASH MEMORY
TB28F400BX - 4-MBIT BOOT BLOCK FLASH MEMORY
28F400BX-B - 4-MBIT BOOT BLOCK FLASH MEMORY
28F400BX-T - 4-MBIT BOOT BLOCK FLASH MEMORY
A28F400BX-B - 4-MBIT BOOT BLOCK FLASH MEMORY