| 926521 | M27C512-12XC3 | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
| 926522 | M27C512-12XC3 | 512 Kbit (64K x8) UV EPROM and OTP EPROM | ST Microelectronics |
| 926523 | M27C512-12XC3TR | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
| 926524 | M27C512-12XC3TR | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926525 | M27C512-12XC3X | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926526 | M27C512-12XC6 | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
| 926527 | M27C512-12XC6 | 512 Kbit (64K x8) UV EPROM and OTP EPROM | ST Microelectronics |
| 926528 | M27C512-12XC6TR | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
| 926529 | M27C512-12XC6TR | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926530 | M27C512-12XC6X | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926531 | M27C512-12XF1 | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
| 926532 | M27C512-12XF1 | 512 Kbit (64K x8) UV EPROM and OTP EPROM | ST Microelectronics |
| 926533 | M27C512-12XF1TR | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926534 | M27C512-12XF1X | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926535 | M27C512-12XF3 | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
| 926536 | M27C512-12XF3 | 512 Kbit (64K x8) UV EPROM and OTP EPROM | ST Microelectronics |
| 926537 | M27C512-12XF3TR | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926538 | M27C512-12XF3X | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926539 | M27C512-12XF6 | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
|
| 926540 | M27C512-12XF6 | 512 Kbit (64K x8) UV EPROM and OTP EPROM | ST Microelectronics |
| 926541 | M27C512-12XF6TR | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926542 | M27C512-12XF6X | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926543 | M27C512-12XN1 | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
| 926544 | M27C512-12XN1 | 512 Kbit (64K x8) UV EPROM and OTP EPROM | ST Microelectronics |
| 926545 | M27C512-12XN1TR | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
| 926546 | M27C512-12XN1TR | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926547 | M27C512-12XN1X | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926548 | M27C512-12XN3 | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
| 926549 | M27C512-12XN3 | 512 Kbit (64K x8) UV EPROM and OTP EPROM | ST Microelectronics |
| 926550 | M27C512-12XN3TR | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
| 926551 | M27C512-12XN3TR | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926552 | M27C512-12XN3X | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926553 | M27C512-12XN6 | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
| 926554 | M27C512-12XN6 | 512 Kbit (64K x8) UV EPROM and OTP EPROM | ST Microelectronics |
| 926555 | M27C512-12XN6TR | 512 Kbit (64Kb x 8) EPROM, 5V, 120ns | SGS Thomson Microelectronics |
| 926556 | M27C512-12XN6TR | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926557 | M27C512-12XN6X | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
| 926558 | M27C512-15B1 | 512 Kbit (64Kb x 8) EPROM, 5V, 150ns | SGS Thomson Microelectronics |
| 926559 | M27C512-15B1 | 512 Kbit (64K x8) UV EPROM and OTP EPROM | ST Microelectronics |
| 926560 | M27C512-15B1TR | 512 Kbit 64Kb x8 UV EPROM and OTP EPROM | ST Microelectronics |
