M27C405 4 Mbit (512Kb x 8) OTP EPROM 5V ± 10% SUP.
STMicroelectronics
M27C405 - 4 Mbit 512Kb x 8 OTP EPROM
M27C405 4 Mbit (512Kb x 8) OTP EPROM 5V ± 10% SUPPLY VOLTAGE in READ OPERATION PIN COMPATIBLE with the 4 Mbit, SINGLE VOLTAGE FLASH MEMORY FAST ACCESS.