M29W040 4 Mbit (512Kb x8, Uniform Block) Low Volta.
Samsung semiconductor
KM29W040AT - 512K x 8 bit NAND Flash Memory
KM29W040AT, KM29W040AIT Document Title 512K x 8 bit NAND Flash Memory FLASH MEMORY Revision History Revision No. History 0.0 1.0 1.1 Initial issue. .
ST Microelectronics
M29W040 - 4 Mbit 512Kb x8 / Uniform Block Low Voltage Single Supply Flash Memory
M29W040 4 Mbit (512Kb x8, Uniform Block) Low Voltage Single Supply Flash Memory NOT FOR NEW DESIGN M29W040 is replaced by the M29W040B 2.7V to 3.6V S.
ST Microelectronics
M29W040B - 4 Mbit 512Kb x8 / Uniform Block Low Voltage Single Supply Flash Memory
M29W040B 4 Mbit (512Kb x8, Uniform Block) Low Voltage Single Supply Flash Memory s SINGLE 2.7 to 3.6V SUPPLY VOLTAGE for PROGRAM, ERASE and READ OPER.