a28f400br-b Memory of PDF datasheet

Part Nnmber : A28F400BR-B
Manufacturer : Intel Corporation
Description : 4-MBIT (512K x8) Boot Block Flash Memory(4???(512K x8) ????????????)

Part Nnmber : A28F400BR-B
Manufacturer :
Description : 4-MBIT (256K X 16. 512K X 8) SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY