| 925681 | M27C4001-55C6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925682 | M27C4001-55F1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925683 | M27C4001-55F1X | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925684 | M27C4001-55F1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925685 | M27C4001-55F6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925686 | M27C4001-55F6X | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925687 | M27C4001-55F6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925688 | M27C4001-55L1TR | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925689 | M27C4001-55L1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925690 | M27C4001-55L1X | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925691 | M27C4001-55L1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925692 | M27C4001-55L6TR | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925693 | M27C4001-55L6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925694 | M27C4001-55L6X | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925695 | M27C4001-55L6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925696 | M27C4001-55N1TR | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925697 | M27C4001-55N1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925698 | M27C4001-55N1X | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925699 | M27C4001-55N1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
|
| 925700 | M27C4001-55N6TR | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925701 | M27C4001-55N6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925702 | M27C4001-55N6X | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925703 | M27C4001-55N6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925704 | M27C4001-55XB1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925705 | M27C4001-55XB1X | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925706 | M27C4001-55XB1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925707 | M27C4001-55XB6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925708 | M27C4001-55XB6X | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925709 | M27C4001-55XB6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925710 | M27C4001-55XC1TR | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925711 | M27C4001-55XC1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925712 | M27C4001-55XC1X | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925713 | M27C4001-55XC1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925714 | M27C4001-55XC6TR | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925715 | M27C4001-55XC6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925716 | M27C4001-55XC6X | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925717 | M27C4001-55XC6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925718 | M27C4001-55XF1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925719 | M27C4001-55XF1X | 4 Mbit (512Kb x 8) EPROM, 55ns | SGS Thomson Microelectronics |
| 925720 | M27C4001-55XF1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
