| Nr. | Teilname | Beschreibung | Hersteller |
| 677761 | M27C256B-12XB3X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677762 | M27C256B-12XB6 | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677763 | M27C256B-12XB6TR | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677764 | M27C256B-12XB6X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677765 | M27C256B-12XB7TR | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677766 | M27C256B-12XB7X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677767 | M27C256B-12XC1 | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677768 | M27C256B-12XC1TR | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677769 | M27C256B-12XC1TR | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677770 | M27C256B-12XC1X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677771 | M27C256B-12XC3 | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677772 | M27C256B-12XC3TR | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677773 | M27C256B-12XC3TR | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677774 | M27C256B-12XC3X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677775 | M27C256B-12XC6 | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677776 | M27C256B-12XC6TR | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677777 | M27C256B-12XC6TR | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677778 | M27C256B-12XC6X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677779 | M27C256B-12XC7TR | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677780 | M27C256B-12XC7X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677781 | M27C256B-12XF1 | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677782 | M27C256B-12XF1TR | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677783 | M27C256B-12XF1X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677784 | M27C256B-12XF3 | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677785 | M27C256B-12XF3TR | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677786 | M27C256B-12XF3X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677787 | M27C256B-12XF6 | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677788 | M27C256B-12XF6TR | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677789 | M27C256B-12XF6X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677790 | M27C256B-12XF7TR | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677791 | M27C256B-12XF7X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677792 | M27C256B-12XN1 | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677793 | M27C256B-12XN1TR | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677794 | M27C256B-12XN1TR | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677795 | M27C256B-12XN1X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677796 | M27C256B-12XN3 | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677797 | M27C256B-12XN3TR | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677798 | M27C256B-12XN3TR | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
| 677799 | M27C256B-12XN3X | 256 Kbit (32Kb x 8) UVEPROM und OTP EPROM | ST Microelectronics |
| 677800 | M27C256B-12XN6 | 256 KBytes (32Kb x 8) EPROM, 5 V, 120 ns | SGS Thomson Microelectronics |
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