27C040
Atmel (now Microchip Technology)
4-Megabit 512K x 8 OTP EPROM
4-Megabit 512K x 8 OTP EPROM
4 Megabit (512 K x 8-Bit) CMOS EPROM
Programmable ROM
4 /194 /304-Bit 512K x 8 High Performance CMOS EPROM
4-Megabit 512K x 8 OTP EPROM
4 /194 /304-Bit (512K x 8) High Performance CMOS EPROM
CMOS 512K x 8-Bit OTP EPROM
UVEPROM
High Performance CMOS EPROM
4 /194 /304-Bit (512K x 8) High Performance CMOS EPROM