| 925441 | M27C4001-12XN1TR | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 925442 | M27C4001-12XN1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925443 | M27C4001-12XN1X | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 925444 | M27C4001-12XN1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925445 | M27C4001-12XN6TR | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 925446 | M27C4001-12XN6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925447 | M27C4001-12XN6X | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 925448 | M27C4001-12XN6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925449 | M27C4001-15B1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925450 | M27C4001-15B1X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925451 | M27C4001-15B1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925452 | M27C4001-15B6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925453 | M27C4001-15B6X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925454 | M27C4001-15B6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925455 | M27C4001-15C1TR | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925456 | M27C4001-15C1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925457 | M27C4001-15C1X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925458 | M27C4001-15C1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925459 | M27C4001-15C6TR | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
|
| 925460 | M27C4001-15C6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925461 | M27C4001-15C6X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925462 | M27C4001-15C6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925463 | M27C4001-15F1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925464 | M27C4001-15F1X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925465 | M27C4001-15F1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925466 | M27C4001-15F6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925467 | M27C4001-15F6X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925468 | M27C4001-15F6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925469 | M27C4001-15L1TR | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925470 | M27C4001-15L1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925471 | M27C4001-15L1X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925472 | M27C4001-15L1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925473 | M27C4001-15L6TR | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925474 | M27C4001-15L6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925475 | M27C4001-15L6X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925476 | M27C4001-15L6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925477 | M27C4001-15N1TR | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925478 | M27C4001-15N1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 925479 | M27C4001-15N1X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS Thomson Microelectronics |
| 925480 | M27C4001-15N1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
