| 924801 | M27C256B-45XF1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924802 | M27C256B-45XF3 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924803 | M27C256B-45XF3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924804 | M27C256B-45XF3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924805 | M27C256B-45XF6 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924806 | M27C256B-45XF6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924807 | M27C256B-45XF6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924808 | M27C256B-45XF7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924809 | M27C256B-45XF7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924810 | M27C256B-45XN1 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924811 | M27C256B-45XN1TR | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924812 | M27C256B-45XN1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924813 | M27C256B-45XN1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924814 | M27C256B-45XN3 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924815 | M27C256B-45XN3TR | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924816 | M27C256B-45XN3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924817 | M27C256B-45XN3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924818 | M27C256B-45XN6 | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
| 924819 | M27C256B-45XN6TR | 256 Kbit (32Kb x 8) EPROM, 5V, 45ns | SGS Thomson Microelectronics |
|
| 924820 | M27C256B-45XN6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924821 | M27C256B-45XN6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924822 | M27C256B-45XN7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924823 | M27C256B-45XN7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924824 | M27C256B-60B1 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 924825 | M27C256B-60B1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924826 | M27C256B-60B1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924827 | M27C256B-60B3 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 924828 | M27C256B-60B3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924829 | M27C256B-60B3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924830 | M27C256B-60B6 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 924831 | M27C256B-60B6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924832 | M27C256B-60B6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924833 | M27C256B-60B7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924834 | M27C256B-60B7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924835 | M27C256B-60C1 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 924836 | M27C256B-60C1TR | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 924837 | M27C256B-60C1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924838 | M27C256B-60C1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924839 | M27C256B-60C3 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 924840 | M27C256B-60C3TR | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
