| 924721 | M27C256B-25XN7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924722 | M27C256B-45B1 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924723 | M27C256B-45B1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924724 | M27C256B-45B1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924725 | M27C256B-45B3 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924726 | M27C256B-45B3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924727 | M27C256B-45B3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924728 | M27C256B-45B6 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924729 | M27C256B-45B6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924730 | M27C256B-45B6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924731 | M27C256B-45B7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924732 | M27C256B-45B7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924733 | M27C256B-45C1 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924734 | M27C256B-45C1TR | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924735 | M27C256B-45C1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924736 | M27C256B-45C1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924737 | M27C256B-45C3 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924738 | M27C256B-45C3TR | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924739 | M27C256B-45C3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
|
| 924740 | M27C256B-45C3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924741 | M27C256B-45C6 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924742 | M27C256B-45C6TR | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924743 | M27C256B-45C6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924744 | M27C256B-45C6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924745 | M27C256B-45C7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924746 | M27C256B-45C7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924747 | M27C256B-45F1 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924748 | M27C256B-45F1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924749 | M27C256B-45F1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924750 | M27C256B-45F3 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924751 | M27C256B-45F3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924752 | M27C256B-45F3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924753 | M27C256B-45F6 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924754 | M27C256B-45F6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924755 | M27C256B-45F6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924756 | M27C256B-45F7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924757 | M27C256B-45F7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924758 | M27C256B-45N1 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924759 | M27C256B-45N1TR | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924760 | M27C256B-45N1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
